TWI434251B - Dynamic touch mura compensation method and related liquid crystal display system - Google Patents
Dynamic touch mura compensation method and related liquid crystal display system Download PDFInfo
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Description
本發明係有關於一種顯示資料補償方法及相關液晶顯示系統，尤指一種觸碰雲紋(MURA)的動態資料補償方法及相關液晶顯示系統。The invention relates to a display data compensation method and related liquid crystal display system, in particular to a dynamic data compensation method for touch moiré (MURA) and a related liquid crystal display system.
液晶顯示裝置(liquidc rystal display,LCD)是目前最被廣泛使用的一種平面顯示器，具有外型輕薄、省電以及無輻射污染等特徵。液晶顯示裝置的工作原理係利用改變液晶層兩端的電壓差來改變液晶層內之液晶分子的排列狀態，藉以改變液晶層的透光性而顯示不同的影像。在各種包含液晶顯示裝置之電子產品中，譬如多媒體播放器、手機或個人數位助理(PDA)等電子產品，利用液晶顯示裝置執行觸碰輸入的功能已漸成流行，亦即觸碰式螢幕的應用越來越廣泛。觸碰式螢幕以電阻式觸碰螢幕及電容式觸碰螢幕為主。電阻式觸碰螢幕係以電壓降定位觸碰位置，電容式觸碰螢幕通常包含感測電容，根據對應於觸碰點之感測電容的電容變化，經訊號處理而定位出觸碰位置。Liquid crystal display (LCD) is currently the most widely used flat panel display, featuring thin and light appearance, power saving and no radiation pollution. The working principle of the liquid crystal display device is to change the arrangement state of the liquid crystal molecules in the liquid crystal layer by changing the voltage difference between the two ends of the liquid crystal layer, thereby changing the light transmittance of the liquid crystal layer to display different images. In various electronic products including liquid crystal display devices, such as multimedia players, mobile phones or personal digital assistants (PDAs) and other electronic products, the function of performing touch input using a liquid crystal display device has become popular, that is, a touch screen. Applications are becoming more widespread. The touch screen is based on a resistive touch screen and a capacitive touch screen. The resistive touch screen is positioned with a voltage drop to locate the touch position. The capacitive touch screen usually includes a sensing capacitor, and the touch position is located after the signal processing according to the capacitance change of the sensing capacitor corresponding to the touch point.
然而，當液晶螢幕被觸碰時，液晶層內的液晶分子會受到擠壓而導致混亂的排列狀態；觸碰後，混亂的排列狀態並不會立即消失，需要經過一段時間後才會逐漸恢復原始排列狀態，此現象即為所謂的雲紋(MURA)效應。請參考第1圖，第1圖係繪示液晶螢幕100從未觸碰時原液晶分子排列狀態之第一示意狀態110、觸碰時液晶分子排列狀態之第二示意狀態120、觸碰後液晶分子排列狀態之第三示意狀態130，以及恢復原液晶分子排列狀態之第四示意狀態140。如第1圖所示，液晶螢幕100包含上基板111、下基板118及液晶分子115。However, when the liquid crystal screen is touched, the liquid crystal molecules in the liquid crystal layer are squeezed to cause a disordered arrangement state; after the touch, the disordered arrangement state does not disappear immediately, and it takes a while to gradually recover. In the original arrangement state, this phenomenon is the so-called moire effect. Please refer to FIG. 1 . FIG. 1 is a first schematic state 110 showing an arrangement state of liquid crystal molecules when the liquid crystal screen 100 is not touched, a second schematic state 120 in which liquid crystal molecules are arranged in a touch state, and a liquid crystal after touch. A third schematic state 130 of the molecular alignment state, and a fourth schematic state 140 for restoring the alignment state of the original liquid crystal molecules. As shown in FIG. 1, the liquid crystal screen 100 includes an upper substrate 111, a lower substrate 118, and liquid crystal molecules 115.
第一示意狀態110顯示當液晶螢幕100未被觸碰時，規律的原液晶分子排列狀態，第二示意狀態120顯示當液晶螢幕100被觸碰時，上基板111因被外力觸碰而微量變形，導致液晶層內之液晶分子115受到擠壓而造成混亂的排列狀態，第三示意狀態130顯示當液晶螢幕100被觸碰後，雖然上基板111已恢復原狀，液晶層內之液晶分子115因慣性作用，仍保持在混亂的排列狀態，即雲紋效應，第四示意狀態140顯示經一段持續時間後，液晶層內之液晶分子115才恢復為規律的原液晶分子排列狀態。通常，雲紋效應會導致液晶螢幕的區域不規則顯示狀況，造成不舒服的視覺感受，所以雲紋效應的持續時間越短越好。The first schematic state 110 shows a regular arrangement of the original liquid crystal molecules when the liquid crystal screen 100 is not touched, and the second schematic state 120 shows that when the liquid crystal screen 100 is touched, the upper substrate 111 is slightly deformed by being touched by an external force. The liquid crystal molecules 115 in the liquid crystal layer are caused to be squeezed to cause a disordered arrangement state. The third schematic state 130 shows that after the liquid crystal screen 100 is touched, although the upper substrate 111 has been restored to its original state, the liquid crystal molecules 115 in the liquid crystal layer are The inertia action remains in the chaotic arrangement state, that is, the moiré effect, and the fourth schematic state 140 shows that after a certain period of time, the liquid crystal molecules 115 in the liquid crystal layer return to the regular arrangement of the original liquid crystal molecules. Generally, the moiré effect causes an irregular display of the area of the liquid crystal screen, resulting in an uncomfortable visual experience, so the duration of the moiré effect is as short as possible.
本發明揭露一種動態觸碰雲紋(MURA)補償方法，包含：根據一液晶螢幕之一觸碰事件之一觸碰位置產生一觸碰位置訊號；根據觸碰位置訊號執行一原始像素資料之相對應於觸碰位置的一像素亮度訊號之訊號補償處理，用以產生一待顯示像素資料；以及將待顯示像素資料顯示於液晶螢幕。The invention discloses a dynamic touch moiré (MURA) compensation method, which comprises: generating a touch position signal according to a touch position of one touch event of a liquid crystal screen; and performing an original pixel data according to the touch position signal The signal compensation processing of the one-pixel luminance signal corresponding to the touch position is used to generate a pixel data to be displayed; and the pixel data to be displayed is displayed on the liquid crystal screen.
本發明另揭露一種動態觸碰雲紋補償方法，包含：根據一液晶螢幕之一觸碰事件之一觸碰位置產生一觸碰位置訊號；根據觸碰位置訊號及一位置相關補償對照表，執行一原始像素資料之相對應於觸碰位置的一像素亮度訊號之訊號補償處理，用以產生一待顯示像素資料；以及將待顯示像素資料顯示於液晶螢幕。The invention further discloses a dynamic touch moiré compensation method, which comprises: generating a touch position signal according to a touch position of one touch event of a liquid crystal screen; performing according to the touch position signal and a position correlation compensation comparison table A signal compensation process of a pixel luminance signal corresponding to the touch position of the original pixel data is used to generate a pixel data to be displayed; and the pixel data to be displayed is displayed on the liquid crystal screen.
本發明另揭露一種具動態觸碰雲紋補償之液晶顯示系統，包含一液晶螢幕、一觸碰訊號分析模組、一顯示資料處理器、一動態雲紋補償單元以及一源極驅動器。觸碰訊號分析模組耦合於液晶螢幕，用以接收一觸碰訊號，並根據觸碰訊號產生一觸碰位置訊號。顯示資料處理器係用以提供一原始像素資料。動態雲紋補償單元耦合於觸碰訊號分析模組以接收觸碰位置訊號，另耦合於顯示資料處理器以接收原始像素資料，用以根據觸碰位置訊號與原始像素資料，執行訊號補償處理以產生一待顯示像素資料。源極驅動器耦合於動態雲紋補償單元與液晶螢幕之間，用以接收待顯示像素資料，並將待顯示像素資料顯示於液晶螢幕。The invention further discloses a liquid crystal display system with dynamic touch moiré compensation, comprising a liquid crystal screen, a touch signal analysis module, a display data processor, a dynamic moiré compensation unit and a source driver. The touch signal analysis module is coupled to the liquid crystal screen for receiving a touch signal and generating a touch position signal according to the touch signal. The display data processor is used to provide a raw pixel data. The dynamic moiré compensation unit is coupled to the touch signal analysis module to receive the touch position signal, and is coupled to the display data processor to receive the original pixel data for performing signal compensation processing according to the touch position signal and the original pixel data. Generate a pixel data to be displayed. The source driver is coupled between the dynamic moiré compensation unit and the liquid crystal screen to receive the pixel data to be displayed, and display the pixel data to be displayed on the liquid crystal screen.
為讓本發明更顯而易懂，下文依本發明之動態觸碰雲紋補償方法及相關液晶顯示系統，特舉實施例配合所附圖式作詳細說明，但所提供之實施例並不用以限制本發明所涵蓋的範圍，而方法流程步驟編號更非用以限制其執行先後次序，任何由方法步驟重新組合之執行流程，所產生具有均等功效的方法，皆為本發明所涵蓋的範圍。In order to make the present invention more comprehensible, the following describes the dynamic touch moiré compensation method and the related liquid crystal display system according to the present invention. The specific embodiments are described in detail in conjunction with the drawings, but the embodiments are not used. The scope of the present invention is limited, and the method flow step numbers are not intended to limit the execution order thereof. Any method of re-combining the method steps to produce equal-efficiency methods is the scope covered by the present invention.
請參考第2圖，第2圖係本發明具動態觸碰雲紋補償之液晶顯示系統實施例之方塊示意圖。液晶顯示系統200包含液晶螢幕210、觸碰位置分析單元220、動態雲紋補償單元230、顯示資料處理器240、記憶體250以及源極驅動器260。舉例而言，液晶螢幕210可以是一觸碰螢幕，用以根據發生於一觸碰位置之觸碰事件產生一觸碰訊號。觸碰位置分析單元220耦合於液晶螢幕210，用以接收觸碰訊號並分析觸碰訊號而產生一觸碰位置訊號。Please refer to FIG. 2, which is a block diagram of an embodiment of a liquid crystal display system with dynamic touch moiré compensation according to the present invention. The liquid crystal display system 200 includes a liquid crystal screen 210, a touch position analyzing unit 220, a dynamic moiré compensation unit 230, a display material processor 240, a memory 250, and a source driver 260. For example, the liquid crystal screen 210 can be a touch screen for generating a touch signal according to a touch event occurring at a touch position. The touch position analysis unit 220 is coupled to the liquid crystal screen 210 for receiving the touch signal and analyzing the touch signal to generate a touch position signal.
顯示資料處理器240係用以提供一原始像素資料。動態雲紋補償單元230耦合於觸碰位置分析單元220以接收觸碰位置訊號，另耦合於顯示資料處理器240以接收原始像素資料。動態雲紋補償單元230包含記憶體235。記憶體235儲存一亮度相關補償對照表(lookup table)236及位置相關補償對照表238。動態雲紋補償單元230可根據觸碰位置訊號執行原始像素資料之相對應於觸碰位置的一像素亮度訊號之訊號補償處理，用以產生一待顯示像素資料。舉例而言，記憶體235可為至少可燒錄一次的唯讀記憶體，或為電子熔絲(eFuse)元件。Display data processor 240 is used to provide an original pixel data. The dynamic moiré compensation unit 230 is coupled to the touch position analysis unit 220 to receive the touch position signal, and is coupled to the display data processor 240 to receive the original pixel data. The dynamic moiré compensation unit 230 includes a memory 235. The memory 235 stores a brightness related compensation lookup table 236 and a position related compensation comparison table 238. The dynamic moiré compensation unit 230 can perform signal compensation processing of a pixel luminance signal corresponding to the touch position of the original pixel data according to the touch position signal to generate a pixel data to be displayed. For example, the memory 235 can be a read-only memory that can be burned at least once, or an electronic fuse (eFuse) component.
在一實施例中，訊號補償處理係根據相對應於觸碰位置之像素亮度訊號與亮度相關補償對照表236，對照產生一補償控制訊號，並根據補償控制訊號執行原始像素資料之相對應於觸碰位置的像素亮度訊號之訊號補償處理。在另一實施例中，訊號補償處理係根據觸碰位置訊號與位置相關補償對照表238，對照產生一補償控制訊號，並根據補償控制訊號執行原始像素資料之相對應於觸碰位置的像素亮度訊號之訊號補償處理。或者，在一較佳實施例中，訊號補償處理係根據相對應於觸碰位置之像素亮度訊號與亮度相關補償對照表236以及根據觸碰位置訊號與位置相關補償對照表238，對照產生一補償控制訊號，並根據補償控制訊號執行原始像素資料之相對應於觸碰位置的像素亮度訊號之訊號補償處理。In an embodiment, the signal compensation process generates a compensation control signal according to the pixel brightness signal corresponding to the touch position and the brightness-related compensation comparison table 236, and performs corresponding pixel data corresponding to the touch control signal according to the compensation control signal. The signal compensation processing of the pixel luminance signal of the touch position. In another embodiment, the signal compensation process generates a compensation control signal according to the touch position signal and the position-related compensation comparison table 238, and performs pixel brightness corresponding to the touch position of the original pixel data according to the compensation control signal. Signal compensation processing of signals. Alternatively, in a preferred embodiment, the signal compensation processing generates a compensation according to the pixel luminance signal and the brightness-related compensation comparison table 236 corresponding to the touch position and the touch position signal and the position-related compensation comparison table 238. The signal is controlled, and the signal compensation processing of the pixel luminance signal corresponding to the touch position of the original pixel data is performed according to the compensation control signal.
記憶體250耦合於動態雲紋補償單元230，用以接收及儲存待顯示像素資料255。源極驅動器260耦合於記憶體250與液晶螢幕210之間，用以擷取記憶體250所儲存的待顯示像素資料255，並且將待顯示像素資料255顯示於液晶螢幕210。由上述可知，當觸碰事件發生於液晶螢幕210時，可對要顯示於觸碰位置之相對應像素亮度訊號，執行訊號補償處理以縮短雲紋效應的持續時間。The memory 250 is coupled to the dynamic moiré compensation unit 230 for receiving and storing the pixel data to be displayed 255. The source driver 260 is coupled between the memory 250 and the liquid crystal screen 210 for capturing the pixel data 255 to be displayed stored in the memory 250, and displaying the pixel data 255 to be displayed on the liquid crystal screen 210. It can be seen from the above that when a touch event occurs on the liquid crystal screen 210, a signal compensation process can be performed on the corresponding pixel luminance signal to be displayed at the touch position to shorten the duration of the moiré effect.
請參考第3圖，第3圖係本發明具動態觸碰雲紋補償的液晶顯示系統之另一實施例的方塊示意圖。液晶顯示系統300包含液晶螢幕310、觸碰訊號分析模組315、動態雲紋補償單元330、顯示資料處理器340、記憶體350以及源極驅動器360。舉例而言，液晶螢幕310可為觸碰螢幕，用以根據發生於一觸碰位置之觸碰事件產生一觸碰訊號。觸碰訊號分析模組315包含觸碰位置分析單元320、觸碰模式分析單元322、記憶體324以及事件控制器328。觸碰訊號分析模組315耦合於液晶螢幕310以接收觸碰訊號，用以產生一觸碰位置訊號輸出至動態雲紋補償單元330，並產生一顯示控制訊號輸出至顯示資料處理器340。Please refer to FIG. 3, which is a block diagram showing another embodiment of the liquid crystal display system with dynamic touch moiré compensation according to the present invention. The liquid crystal display system 300 includes a liquid crystal screen 310, a touch signal analysis module 315, a dynamic moiré compensation unit 330, a display data processor 340, a memory 350, and a source driver 360. For example, the liquid crystal screen 310 can be a touch screen for generating a touch signal according to a touch event occurring at a touch position. The touch signal analysis module 315 includes a touch position analysis unit 320, a touch mode analysis unit 322, a memory 324, and an event controller 328. The touch signal analysis module 315 is coupled to the liquid crystal screen 310 to receive the touch signal for generating a touch position signal output to the dynamic moiré compensation unit 330, and generates a display control signal output to the display data processor 340.
觸碰位置分析單元320耦合於液晶螢幕310，用以接收觸碰訊號並分析觸碰訊號以產生觸碰位置訊號。觸碰模式分析單元322也耦合於液晶螢幕310，用以接收觸碰訊號並分析觸碰訊號以產生一觸碰模式訊號，譬如下壓模式訊號、移動模式訊號或上提模式訊號。記憶體324耦合於觸碰位置分析單元320以接收觸碰位置訊號，另耦合於觸碰模式分析單元322以接收觸碰模式訊號。記憶體324儲存一觸碰事件對照表326，用以根據觸碰位置訊號及觸碰模式訊號，對照產生一事件訊號。舉例而言，記憶體324可為至少可燒錄一次的唯讀記憶體或電子熔絲元件。事件控制器328耦合於記憶體328，用以接收事件訊號，並根據事件訊號產生相對應之一顯示控制訊號。The touch position analysis unit 320 is coupled to the liquid crystal screen 310 for receiving the touch signal and analyzing the touch signal to generate a touch position signal. The touch mode analysis unit 322 is also coupled to the liquid crystal screen 310 for receiving the touch signal and analyzing the touch signal to generate a touch mode signal, such as a press mode signal, a mobile mode signal or a lift mode signal. The memory 324 is coupled to the touch position analysis unit 320 to receive the touch position signal, and is coupled to the touch mode analysis unit 322 to receive the touch mode signal. The memory 324 stores a touch event comparison table 326 for generating an event signal according to the touch position signal and the touch mode signal. For example, the memory 324 can be a read-only memory or an electronic fuse element that can be burned at least once. The event controller 328 is coupled to the memory 328 for receiving an event signal and generating a corresponding one of the display control signals according to the event signal.
顯示資料處理器340耦合於事件控制器328，用以接收顯示控制訊號，並根據顯示控制訊號產生相對應於觸碰事件之一原始像素資料。動態雲紋補償單元330包含記憶體335。記憶體335可儲存亮度相關補償對照表336及位置相關補償對照表338。動態雲紋補償單元330可根據觸碰位置訊號執行原始像素資料之相對應於觸碰位置的一像素亮度訊號之訊號補償處理，用以產生一待顯示像素資料。舉例而言，記憶體335可為至少可燒錄一次的唯讀記憶體或電子熔絲元件。訊號補償處理係根據相對應於觸碰位置之像素亮度訊號與亮度相關補償對照表336以及/或根據觸碰位置訊號與位置相關補償對照表338，對照產生一補償控制訊號，並根據補償控制訊號執行原始像素資料之相對應於觸碰位置的像素亮度訊號之訊號補償處理。The display data processor 340 is coupled to the event controller 328 for receiving the display control signal and generating raw pixel data corresponding to one of the touch events according to the display control signal. The dynamic moiré compensation unit 330 includes a memory 335. The memory 335 can store a brightness related compensation comparison table 336 and a position related compensation comparison table 338. The dynamic moiré compensation unit 330 can perform signal compensation processing of a pixel luminance signal corresponding to the touch position of the original pixel data according to the touch position signal to generate a pixel data to be displayed. For example, the memory 335 can be a read-only memory or an electronic fuse element that can be burned at least once. The signal compensation processing generates a compensation control signal according to the pixel brightness signal and the brightness-related compensation comparison table 336 corresponding to the touch position and/or according to the touch position signal and the position-related compensation comparison table 338, and generates a compensation control signal according to the compensation control signal. The signal compensation processing of the pixel luminance signal corresponding to the touch position of the original pixel data is performed.
記憶體350耦合於動態雲紋補償單元330，用以接收及儲存待顯示像素資料355。源極驅動器360耦合於記憶體350與液晶螢幕310之間，用以擷取記憶體350所儲存的待顯示像素資料355，並將待顯示像素資料355顯示於液晶螢幕310。由上述可知，當觸碰事件發生於液晶螢幕310時，可對要顯示於觸碰位置之相對應像素亮度訊號，執行訊號補償處理以縮短雲紋效應的持續時間。The memory 350 is coupled to the dynamic moiré compensation unit 330 for receiving and storing the pixel data to be displayed 355. The source driver 360 is coupled between the memory 350 and the liquid crystal screen 310 for capturing the pixel data 355 to be displayed stored in the memory 350 and displaying the pixel data 355 to be displayed on the liquid crystal screen 310. It can be seen from the above that when a touch event occurs on the liquid crystal screen 310, a signal compensation process can be performed on the corresponding pixel brightness signal to be displayed at the touch position to shorten the duration of the moiré effect.
請參考第4圖，第4圖係本發明動態觸碰雲紋補償方法第一實施例之流程圖，用以縮短發生於液晶螢幕之雲紋效應的持續時間，此動態觸碰雲紋補償方法包含：步驟S410：偵測液晶螢幕是否發生一觸碰事件而產生一觸碰訊號；若是，則執行步驟S420，否則執行步驟S410；步驟S420：分析觸碰訊號以產生一觸碰位置訊號；步驟S430：根據觸碰位置訊號從一原始像素資料擷取相對應於觸碰位置之一像素亮度訊號；步驟S440：根據相對應於觸碰位置之像素亮度訊號及一亮度相關補償對照表，執行相對應於觸碰位置之像素亮度訊號的訊號補償處理，以產生一待顯示像素資料；以及步驟S450：將待顯示像素資料顯示於液晶螢幕。Please refer to FIG. 4 , which is a flow chart of the first embodiment of the dynamic touch moiré compensation method of the present invention for shortening the duration of the moiré effect occurring on the liquid crystal screen, and the dynamic touch moiré compensation method The method includes: step S410: detecting whether a touch event occurs on the liquid crystal screen to generate a touch signal; if yes, executing step S420, otherwise performing step S410; step S420: analyzing the touch signal to generate a touch position signal; S430: extracting, according to the touch position signal, a pixel brightness signal corresponding to the touch position from a raw pixel data; step S440: performing a phase according to the pixel brightness signal corresponding to the touch position and a brightness correlation compensation table Corresponding to the signal compensation processing of the pixel luminance signal of the touch position to generate a pixel data to be displayed; and step S450: displaying the pixel data to be displayed on the liquid crystal screen.
在上述動態觸碰雲紋補償方法的流程中，步驟S440所述之根據相對應於觸碰位置之像素亮度訊號及亮度相關補償對照表，執行相對應於觸碰位置之像素亮度訊號的訊號補償處理，係為根據相對應於觸碰位置之像素亮度訊號及亮度相關補償對照表，對照產生一補償控制訊號。若由像素亮度訊號在液晶螢幕之觸碰位置所顯示之螢幕像素亮度，於觸碰事件中，螢幕像素亮度轉淡，則根據補償控制訊號執行相對應於觸碰位置的像素亮度訊號之訊號增強處理，或若由像素亮度訊號在液晶螢幕之觸碰位置所顯示之螢幕像素亮度，於觸碰事件中，螢幕像素亮度增強，則根據補償控制訊號執行相對應於觸碰位置的像素亮度訊號之訊號減弱處理。在另一實施例中，步驟S440可不根據亮度相關補償對照表而直接根據觸碰位置訊號產生一補償控制訊號，然後再根據補償控制訊號執行相對應於觸碰位置的像素亮度訊號之訊號比例增強或減弱處理，或直接執行相對應於觸碰位置的像素亮度訊號之訊號比例增強或減弱處理。In the flow of the dynamic touch moiré compensation method, the signal compensation corresponding to the pixel brightness signal corresponding to the touch position is performed according to the pixel brightness signal and the brightness correlation compensation comparison table corresponding to the touch position, as described in step S440. The processing is to generate a compensation control signal according to the pixel brightness signal and the brightness correlation compensation comparison table corresponding to the touch position. If the brightness of the screen pixel is displayed by the pixel brightness signal at the touch position of the liquid crystal screen, the brightness of the screen pixel is lightened during the touch event, and the signal enhancement of the pixel brightness signal corresponding to the touch position is performed according to the compensation control signal. Processing, or if the brightness of the screen pixel is displayed by the pixel brightness signal at the touch position of the liquid crystal screen, in the touch event, the brightness of the screen pixel is enhanced, and the pixel brightness signal corresponding to the touch position is performed according to the compensation control signal. Signal weakening processing. In another embodiment, step S440 may generate a compensation control signal directly according to the touch position signal according to the brightness correlation compensation comparison table, and then perform signal enhancement of the pixel brightness signal corresponding to the touch position according to the compensation control signal. Or weaken the processing, or directly perform signal ratio enhancement or attenuation processing corresponding to the pixel luminance signal corresponding to the touch position.
請參考第5圖，第5圖係本發明動態觸碰雲紋補償方法第二實施例之流程圖，用以縮短發生於液晶螢幕之雲紋效應的持續時間，此動態觸碰雲紋補償方法包含：步驟S505：偵測液晶螢幕是否發生一觸碰事件而產生一觸碰訊號；若是，則執行步驟S510，否則執行步驟S505；步驟S510：分析觸碰訊號以產生一觸碰位置訊號及一觸碰模式訊號；步驟S515：根據觸碰位置訊號、觸碰模式訊號、及一觸碰事件對照表，對照產生一事件訊號；步驟S520：根據事件訊號產生相對應之一顯示控制訊號；步驟S525：根據相對應於事件訊號之顯示控制訊號產生一原始像素資料；步驟S530：根據觸碰位置訊號從原始像素資料擷取相對應於觸碰位置之一像素亮度訊號；步驟S535：根據相對應於觸碰位置之像素亮度訊號及一亮度相關補償對照表，執行相對應於觸碰位置之像素亮度訊號的訊號補償處理，以產生一待顯示像素資料；以及步驟S540：將待顯示像素資料顯示於液晶螢幕。Please refer to FIG. 5 , which is a flow chart of a second embodiment of the dynamic touch moiré compensation method of the present invention for shortening the duration of the moiré effect occurring on the liquid crystal screen, and the dynamic touch moiré compensation method The method includes the following steps: Step S505: detecting whether a touch event occurs on the liquid crystal screen to generate a touch signal; if yes, executing step S510, otherwise performing step S505; step S510: analyzing the touch signal to generate a touch position signal and a Touching the mode signal; step S515: generating an event signal according to the touch position signal, the touch mode signal, and a touch event comparison table; step S520: generating a corresponding one of the display control signals according to the event signal; step S525 : generating a raw pixel data according to the display control signal corresponding to the event signal; step S530: extracting, from the original pixel data, a pixel brightness signal corresponding to the touch position according to the touch position signal; step S535: corresponding to Touching the pixel brightness signal and a brightness correlation compensation table to perform a signal corresponding to the pixel brightness signal of the touch position Compensation processing to generate a pixel data to be displayed; and Step S540: The display pixel data to be displayed on the LCD screen.
同理，步驟S535包含根據相對應於觸碰位置之像素亮度訊號及亮度相關補償對照表，對照產生一補償控制訊號，再根據補償控制訊號執行相對應於觸碰位置之像素亮度訊號的訊號增強或減弱處理，用以產生待顯示像素資料。在另一實施例中，步驟S535可不根據亮度相關補償對照表，而直接根據觸碰位置訊號產生一補償控制訊號，再根據補償控制訊號執行相對應於觸碰位置的像素亮度訊號之訊號比例增強或減弱處理，或直接執行相對應於觸碰位置的像素亮度訊號之訊號比例增強或減弱處理。Similarly, in step S535, the pixel brightness signal and the brightness-related compensation comparison table corresponding to the touch position are compared, and a compensation control signal is generated, and the signal enhancement corresponding to the pixel brightness signal corresponding to the touch position is performed according to the compensation control signal. Or weakening the process to generate pixel data to be displayed. In another embodiment, step S535 may generate a compensation control signal directly according to the touch position signal according to the brightness correlation compensation comparison table, and perform signal enhancement of the pixel brightness signal corresponding to the touch position according to the compensation control signal. Or weaken the processing, or directly perform signal ratio enhancement or attenuation processing corresponding to the pixel luminance signal corresponding to the touch position.
請參考第6圖，第6圖係本發明動態觸碰雲紋補償方法第三實施例之流程圖，用以縮短發生於液晶螢幕之雲紋效應的持續時間，此動態觸碰雲紋補償方法包含：步驟S610：偵測液晶螢幕是否發生一觸碰事件而產生一觸碰訊號；若是，則執行步驟S620，否則執行步驟S610；步驟S620：分析觸碰訊號以產生一觸碰位置訊號；步驟S630：根據觸碰位置訊號從一原始像素資料擷取相對應於觸碰位置之一像素亮度訊號；步驟S640：根據觸碰位置訊號及一位置相關補償對照表，執行相對應於觸碰位置之像素亮度訊號的訊號補償處理，以產生一待顯示像素資料；以及步驟S650：將待顯示像素資料顯示於液晶螢幕。Please refer to FIG. 6 , which is a flow chart of a third embodiment of the dynamic touch moiré compensation method of the present invention for shortening the duration of the moiré effect occurring on the liquid crystal screen, and the dynamic touch moiré compensation method The method includes the following steps: Step S610: detecting whether a touch event occurs on the liquid crystal screen to generate a touch signal; if yes, executing step S620; otherwise, performing step S610; step S620: analyzing the touch signal to generate a touch position signal; S630: extracting, according to the touch position signal, a pixel brightness signal corresponding to the touch position from a raw pixel data; step S640: performing a corresponding touch position according to the touch position signal and a position correlation compensation comparison table Signal compensation processing of the pixel luminance signal to generate a pixel data to be displayed; and step S650: displaying the pixel data to be displayed on the liquid crystal screen.
在上述動態觸碰雲紋補償方法的流程中，步驟S640包含根據觸碰位置訊號及位置相關補償對照表，對照產生一補償控制訊號，然後再根據補償控制訊號執行相對應於觸碰位置之像素亮度訊號的訊號增強或減弱處理。在另一實施例中，步驟S640包含根據觸碰位置訊號及位置相關補償對照表，並根據相對應於觸碰位置之像素亮度訊號及一亮度相關補償對照表，對照產生一補償控制訊號，再根據補償控制訊號執行相對應於觸碰位置之像素亮度訊號的訊號增強或減弱處理。此外，步驟S640可不根據位置相關補償對照表而直接根據觸碰位置訊號執行相對應於觸碰位置的像素亮度訊號之訊號比例增強或減弱處理。In the flow of the dynamic touch moiré compensation method, step S640 includes generating a compensation control signal according to the touch position signal and the position-related compensation comparison table, and then performing pixels corresponding to the touch position according to the compensation control signal. The signal of the brightness signal is enhanced or weakened. In another embodiment, step S640 includes generating a compensation control signal according to the touch position signal and the position-related compensation comparison table, and according to the pixel brightness signal corresponding to the touch position and a brightness correlation compensation table. The signal enhancement or attenuation processing corresponding to the pixel luminance signal of the touch position is performed according to the compensation control signal. In addition, step S640 may perform the signal ratio enhancement or attenuation processing of the pixel luminance signal corresponding to the touch position directly according to the touch position signal according to the position correlation compensation comparison table.
請參考第7圖，第7圖係本發明動態觸碰雲紋補償方法第四實施例之流程圖，用以縮短發生於液晶螢幕之雲紋效應的持續時間，此動態觸碰雲紋補償方法包含：步驟S705：偵測液晶螢幕是否發生一觸碰事件而產生一觸碰訊號，若是，則執行步驟S710，否則，執行步驟S705；步驟S710：分析觸碰訊號以產生一觸碰位置訊號及一觸碰模式訊號；步驟S715：根據觸碰位置訊號、觸碰模式訊號、及一觸碰事件對照表，對照產生一事件訊號；步驟S720：根據事件訊號產生相對應之一顯示控制訊號；步驟S725：根據相對應於事件訊號之顯示控制訊號產生一原始像素資料；步驟S730：根據觸碰位置訊號從原始像素資料擷取相對應於觸碰位置之一像素亮度訊號；步驟S735：根據觸碰位置訊號及一位置相關補償對照表，執行相對應於觸碰位置之像素亮度訊號的訊號補償處理，以產生一待顯示像素資料；以及步驟S740：將待顯示像素資料顯示於液晶螢幕。Please refer to FIG. 7 , which is a flow chart of a fourth embodiment of the dynamic touch moiré compensation method of the present invention for shortening the duration of the moiré effect occurring on the liquid crystal screen, and the dynamic touch moiré compensation method The method includes: Step S705: detecting whether a touch event occurs on the LCD screen to generate a touch signal, and if yes, executing step S710; otherwise, performing step S705; and step S710: analyzing the touch signal to generate a touch position signal and a touch mode signal; step S715: generating an event signal according to the touch position signal, the touch mode signal, and a touch event comparison table; step S720: generating a corresponding one of the display control signals according to the event signal; S725: generating a raw pixel data according to the display control signal corresponding to the event signal; step S730: extracting, from the original pixel data, a pixel brightness signal corresponding to the touch position according to the touch position signal; step S735: according to the touch a position signal and a position-related compensation comparison table, performing signal compensation processing corresponding to the pixel brightness signal of the touch position to generate Pixel data to be displayed; and Step S740: The display pixel data to be displayed on the LCD screen.
同理，步驟S735包含根據觸碰位置訊號及位置相關補償對照表，對照產生一補償控制訊號，然後再根據補償控制訊號執行相對應於觸碰位置之像素亮度訊號的訊號增強或減弱處理。在另一實施例中，步驟S735包含根據觸碰位置訊號及位置相關補償對照表，並根據相對應於觸碰位置之像素亮度訊號及一亮度相關補償對照表，對照產生一補償控制訊號，再根據補償控制訊號執行相對應於觸碰位置之像素亮度訊號的訊號增強或減弱處理。Similarly, step S735 includes generating a compensation control signal according to the touch position signal and the position-related compensation comparison table, and then performing signal enhancement or attenuation processing corresponding to the pixel brightness signal of the touch position according to the compensation control signal. In another embodiment, step S735 includes generating a compensation control signal according to the touch position signal and the position-related compensation comparison table, and according to the pixel brightness signal corresponding to the touch position and a brightness correlation compensation comparison table. The signal enhancement or attenuation processing corresponding to the pixel luminance signal of the touch position is performed according to the compensation control signal.
由上述可知，依本發明之動態觸碰雲紋補償方法及相關液晶顯示系統，可於一觸碰事件發生於一液晶螢幕時，執行相對應於觸碰位置之像素亮度訊號的訊號補償處理，用以縮短雲紋效應的持續時間。It can be seen from the above that the dynamic touch moiré compensation method and the related liquid crystal display system according to the present invention can perform signal compensation processing corresponding to the pixel luminance signal corresponding to the touch position when a touch event occurs on a liquid crystal screen. Used to shorten the duration of the moiré effect.
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，任何具有本發明所屬技術領域之通常知識者，在不脫離本發明之精神和範圍內，當可作各種更動與潤飾，因此本發明之保護範圍當視後附申請專利範圍所界定者為準。While the present invention has been described above by way of example, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.
100．．．液晶螢幕100. . . LCD screen
110．．．第一示意狀態110. . . First schematic state
111．．．上基板111. . . Upper substrate
115．．．液晶分子115. . . Liquid crystal molecule
118．．．下基板118. . . Lower substrate
120．．．第二示意狀態120. . . Second schematic state
130．．．第三示意狀態130. . . Third schematic state
140．．．第四示意狀態140. . . Fourth schematic state
200、300．．．液晶顯示系統200, 300. . . Liquid crystal display system
210、310．．．液晶螢幕210, 310. . . LCD screen
220、320．．．觸碰位置分析單元220, 320. . . Touch position analysis unit
230、330．．．動態雲紋補償單元230, 330. . . Dynamic moiré compensation unit
235、250、324、335、350．．．記憶體235, 250, 324, 335, 350. . . Memory
236、336．．．亮度相關補償對照表236, 336. . . Brightness correlation compensation table
238、338．．．位置相關補償對照表238, 338. . . Location related compensation table
240、340．．．顯示資料處理器240, 340. . . Display data processor
255、355．．．待顯示像素資料255, 355. . . Pixel data to be displayed
260、360．．．源極驅動器260, 360. . . Source driver
315．．．觸碰訊號分析模組315. . . Touch signal analysis module
322．．．觸碰模式分析單元322. . . Touch mode analysis unit
326．．．觸碰事件對照表326. . . Touch event comparison table
328．．．事件控制器328. . . Event controller
S410－S450、S505－S540、S610－S650、S705－S740．．．步驟S410-S450, S505-S540, S610-S650, S705-S740. . . step
第1圖顯示液晶螢幕從未觸碰時原液晶分子排列狀態之第一示意狀態、觸碰時液晶分子排列狀態之第二示意狀態、觸碰後液晶分子排列狀態之第三示意狀態、及恢復原液晶分子排列狀態之第四示意狀態。Fig. 1 shows a first schematic state in which the original liquid crystal molecules are aligned when the liquid crystal screen is never touched, a second schematic state in which the liquid crystal molecules are aligned in the touch, a third schematic state in which the liquid crystal molecules are aligned after the touch, and recovery. The fourth schematic state of the arrangement state of the original liquid crystal molecules.
第2圖為本發明具動態觸碰雲紋補償之液晶顯示系統實施例之方塊示意圖。2 is a block diagram showing an embodiment of a liquid crystal display system with dynamic touch moiré compensation according to the present invention.
第3圖為本發明具動態觸碰雲紋補償的液晶顯示系統之另一實施例的方塊示意圖。FIG. 3 is a block diagram showing another embodiment of a liquid crystal display system with dynamic touch moiré compensation according to the present invention.
第4圖為本發明動態觸碰雲紋補償方法第一實施例之流程圖。FIG. 4 is a flow chart of the first embodiment of the dynamic touch moiré compensation method of the present invention.
第5圖為本發明動態觸碰雲紋補償方法第二實施例之流程圖。FIG. 5 is a flow chart of a second embodiment of a dynamic touch moiré compensation method according to the present invention.
第6圖為本發明動態觸碰雲紋補償方法第三實施例之流程圖。FIG. 6 is a flow chart of a third embodiment of a dynamic touch moiré compensation method according to the present invention.
第7圖為本發明動態觸碰雲紋補償方法第四實施例之流程圖。FIG. 7 is a flow chart of a fourth embodiment of a dynamic touch moiré compensation method according to the present invention.
S410－S450．．．步驟S410-S450. . . step
Claims (20)
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| Application Number | Priority Date | Filing Date | Title |
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| TW96149213A TWI434251B (en) | 2007-12-21 | 2007-12-21 | Dynamic touch mura compensation method and related liquid crystal display system |
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| TW96149213A TWI434251B (en) | 2007-12-21 | 2007-12-21 | Dynamic touch mura compensation method and related liquid crystal display system |
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| TW200929126A TW200929126A (en) | 2009-07-01 |
| TWI434251B true TWI434251B (en) | 2014-04-11 |
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| TWI506614B (en) * | 2014-06-09 | 2015-11-01 | Au Optronics Corp | Liquid crystal display and method for compensating display frame thereof |
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