TW202101413A - 適用於具有整合天線的顯示裝置的方法 - Google Patents

適用於具有整合天線的顯示裝置的方法 Download PDF

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TW202101413A
TW202101413A TW109131066A TW109131066A TW202101413A TW 202101413 A TW202101413 A TW 202101413A TW 109131066 A TW109131066 A TW 109131066A TW 109131066 A TW109131066 A TW 109131066A TW 202101413 A TW202101413 A TW 202101413A
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antenna
interval
display
display panel
display device
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張維修
白鳳霆
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聯詠科技股份有限公司
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Abstract

一種適用於具有整合天線的顯示裝置的方法，能夠有效地使用顯示裝置的內部空間並避免干擾。所述方法包括：於輪詢區間使用所述整合天線廣播輪詢訊號；於聆聽區間從其他裝置聆聽回應訊號；連接並與其他裝置通訊以作為從其他裝置接收所述回應訊號的回應，其中所述聆聽區間較所述輪詢訊號長，且所述輪詢區間在所述顯示裝置的天線控制區間內。

Description

適用於具有整合天線的顯示裝置的方法
本發明是有關於一種顯示裝置，特別是關於一種適用於具有整合天線的顯示裝置的方法，能夠有效地使用顯示裝置的內部空間，並於天線與顯示觸控的操作之中避免干擾。
一般而言，天線與天線控制器配置於顯示裝置以致能顯示裝置的無線通訊能力。然而，天線與天線控制器可能佔用顯示裝置大部份的內部空間，此外，天線與天線控制器可能與顯示裝置中的顯示面板的操作造成互相干擾。因此，顯示裝置的效能受此干擾而降低。
隨著顯示裝置的微型化與高效能的需求增加，需要更有創造性的方法將天線整合進顯示面板並有效地使用顯示裝置的內部空間，且避免對顯示裝置的顯示觸控造成干擾。
於此，任何內容均不應被解釋為承認本發明的任何部分是現有技術。
本發明提供一種適用於具有整合天線的顯示裝置的方法，能夠有效地使用顯示裝置的內部空間，並於天線與顯示觸控的操作之中避免干擾。
本發明的一實施例中，一種適用於具有整合天線的顯示裝置的方法，包括以下步驟：於輪詢 (polling) 區間使用所述整合天線廣播輪詢訊號；於聆聽 (listening) 區間從其他裝置聆聽回應訊號；以及連接並與其他裝置通訊以作為從其他裝置接收所述回應訊號的回應，其中所述聆聽區間較所述輪詢訊號長，且所述輪詢區間在所述顯示裝置的天線控制區間內。
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。
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。此外，「訊號」一詞可指至少一電流、電壓、電荷、溫度、資料、或任何其他一或多個訊號。
參考圖1，圖1繪示根據本發明的一實施例的顯示裝置100的電路圖。顯示裝置100可包括顯示面板110，整合於顯示面板110的天線116與顯示驅動器 120。顯示面板110包括主動區域112與非主動區域114，其中非主動區域114位於主動區域112之外。在一些實施例中，非主動區域114位於主動區域112的外週(或環繞空間)。例如，主動區域112的外邊界可以是非主動區域114的內邊界。在一些實施例中，主動區域112可包括多個受控於顯示驅動器120的顯示要件(例如像素)以顯示影像資料。主動區域112更可包括經配置以感測來自主動區域112的數值的感測圖案。  例如，感測圖案可經配置以感測使用者在主動區域112表面的觸碰或手勢。顯示面板110可以是液晶顯示 (LCD) 面板，有機發光二極體 (OLED) 顯示面板，或任何其他顯示面板。
在一些實施例中，天線116整合於顯示面板110的非主動區域114，且經配置以根據不同無線標準於一個或多個頻率支援無線通訊能力。例如，天線116可支援近場通訊(NFC)，藍芽(BLUETOOTH)，無線熱點(WiFi)，Zigbee，與任何其他的無線通訊標準。在一些實施例中，天線116也可支援顯示裝置100的無線電力傳輸(WPT)。在一些實施例中，天線116 可以是位於顯示面板110的非主動區域114的線圈天線圖案。然而，任何形式的天線均屬本發明範圍內，且天線116的尺寸，形狀，位置與維度可根據設計需求決定。
在一些實施例中，顯示驅動器120電性耦接至天線116與顯示面板110，且經配置以控制使用顯示面板110的顯示觸控操作與使用天線116的天線操作兩者。換言之，顯示驅動器120也包括天線控制器的功能。藉此，不需要分散的天線控制器，且減少天線116與天線相關元件佔用的空間。顯示驅動器120可配置於顯示面板110的非主動區域114或顯示裝置100的任何其他位置。
在一些實施例中，顯示面板110整合顯示與天線116功能，在一幀的時間內，顯示驅動器120 依據規劃的顯示區間 (display interval) 與天線控制區間 (antenna control interval) 的時間表，分時更新顯示資訊及收發天線訊號，顯示區間及天線控制區間不重疊。於天線控制區間，顯示面板110上的顯示內容保持不更新，因此，能避免天線116的天線操作與顯示面板110的顯示操作之間的干擾。
另一例如，顯示面板110整合顯示/觸控/天線116功能，在一幀的時間內，顯示驅動器120依據規劃的顯示區間、觸控區間 (touch interval) 與天線控制區間的時間表，分時更新顯示資訊，偵測觸控訊息及收發天線訊號，顯示區間，觸控區間及天線控制區間不重疊。於顯示區間與觸控區間，對顯示面板110執行觸控操作與顯示操作至少之一。於天線控制區間，顯示面板110的顯示內容保持不更新且不執行觸控感測操作。因為顯示驅動器120 於不重疊區間控制顯示面板110的操作與天線116的操作，天線116的天線操作與顯示面板110 (例如，顯示觸控操作)之間的干擾得以避免。
在一些實施例中，顯示裝置100可以使用晶片-玻璃接合(COG) 技術設計，積體電路 (IC) 例如顯示驅動器 (驅動IC) 可直接配置於顯示面板的顯示玻璃上。然而，本發明不限於任何特定的設計與製程技術。例如，顯示裝置100可以使用晶片-軟性電路板接合 (COF) 技術，晶片-塑料接合 (COP) 技術與其他合適的技術設計。
在一些實施例中，當天線於待機模式、睡眠模式、省電模式、或關機模式時，顯示驅動器120可對天線116設定預定電壓位準以進一步避免天線操作與顯示面板110操作 (例如顯示觸控操作) 之間的干擾。
在一些實施例中，顯示裝置100更包括軟性印刷電路130 與系統板150。系統板150 可包括處理器，記憶體與多個電子電路，且經配置協同顯示驅動器120運作以控制顯示面板110，天線116與其他電路。記憶體可儲存藉由處理器執行的應用指令以執行特定任務。軟性印刷電路130功能為電性耦接顯示驅動器120至系統板150的電纜連接器 (cable connector)，以發送顯示驅動器120與系統板150之間的訊號。
在一些實施例中，顯示裝置100更包括電性耦接於天線116與顯示驅動器120之間的天線匹配電路。天線匹配電路140可配置於軟性印刷電路130之上，或顯示裝置100的任何地方。天線匹配電路140經配置以執行天線116與顯示驅動器120之間的阻抗匹配，因此可避免傳送於天線116與顯示驅動器120之間的訊號反射。
參考圖2，圖2繪示根據本發明的一實施例的顯示驅動器 220。顯示驅動器220 包括天線介面221，天線控制器222，觸控電路 223，源極驅動器224，閘極控制電路225，類比控制電路 226，數位控制電路227，電源228與介面以及輸入/輸出端229。天線控制器222整合於顯示驅動器220且經配置以控制天線操作。  天線控制器222可通過天線介面221控制並與天線通訊，該天線介面221通過天線阻抗匹配電路直接或間接耦接至該天線。觸控電路223，源極驅動器224，閘極控制電路225，類比控制電路226， 數位控制電路227，電源228與顯示驅動器220的介面229經配置以控制顯示面板，並且與其他電子元件通訊。本領域通常知識者可清楚觸控電路223、源極驅動器 224、閘極控制電路 225、類比控制電路 226、數位控制電路 227、電源228與介面229的架構與操作，因此之後省略上述元件的詳細說明。
參考圖3A ~ 圖3D，圖3A ~ 圖3D繪示根據本發明的一實施例的整合天線於液晶顯示 (LCD) 面板中的位置。從液晶顯示面板的前側至後側，液晶顯示面板可包括偏光片，彩色濾光片，液晶層，薄膜電晶體電路層，薄膜電晶體基板與背光模組。
參考圖3A，圖3A繪示了一種包括液晶顯示面板310a，顯示驅動器 320a，軟性印刷電路370a，系統板 350a的顯示裝置300a。液晶顯示面板310a包括偏光片3101a，彩色濾光片3102a，液晶層3103a，薄膜電晶體電路層3104a，薄膜電晶體基板3105a與背光模組3106a。天線316a整合於液晶顯示面板310a的彩色濾光片3102a，且彩色濾光片3102a與薄膜電晶體電路層3104a垂直導通。  在一些實施例中，天線316a配置於液晶顯示面板310a的非主動區域，且在與液晶顯示面板310a的彩色濾光片相同一層。
在圖3A中，因為顯示驅動器320a與天線316a位於顯示面板310a的不同層。更特定地說，顯示驅動器320a接合 (bonding)  於不同於彩色濾光片3102a的層的薄膜電晶體電路層3104a之上，且彩色濾光片3102a與薄膜電晶體電路層3104a垂直導通。在一些實施例中，天線316a可通過軟性印刷電路370a與顯示驅動器320a耦接至系統板350a。
參考圖3B，圖3B繪示了一種包括液晶顯示面板310b，顯示驅動器320b，軟性印刷電路370b，系統板350b的顯示裝置300b。液晶顯示面板310b包括偏光片3101b，彩色濾光片3102b，液晶層3103b，薄膜電晶體電路層3104b，薄膜電晶體基板3104b與背光模組3106b。天線316b整合於位於偏光片3101b之上的層3107b。在一些實施例中，天線316b可配置於顯示面板310b的非主動區域，且配置於顯示面板310b的偏光片3101b之上的層3107b。
在圖3B中，顯示驅動器320b接合於與天線316b不同的薄膜電晶體電路層3104b之上，因此軟性印刷電路360b用於電性耦接天線316b至顯示驅動器320b。在一些實施例中，天線316b 可通過軟性印刷電路360b、370b與顯示驅動器320b耦接至系統板350b。
參考圖3C，圖3C繪示了一種包括液晶顯示面板310c，顯示驅動器320c，軟性印刷電路370c，系統板350c的顯示裝置300c。液晶顯示面板310c包括偏光片3101c，彩色濾光片3102c，液晶層3103c，薄膜電晶體電路層3104c，薄膜電晶體基板3104c與背光模組3106c。天線316c整合於液晶顯示面板310c的薄膜電晶體電路層3104c。在一實施例中，天線316c配置於液晶顯示面板310c的非主動區域，且配置於與液晶顯示面板310c的薄膜電晶體電路層3104c相同的層。
在圖3C中，顯示驅動器320c接合於薄膜電晶體電路層3104c之上，天線316c電性耦接至顯示驅動器 320c。天線316c可通過軟性印刷電路370c與顯示驅動器320c耦接至系統板350c。
參考圖3D，圖3D繪示了一種包括液晶顯示面板310d，顯示驅動器320d，軟性印刷電路370d，系統板350d的顯示裝置300d。液晶顯示面板310d包括偏光片3101d，彩色濾光片3102d， 液晶層3103d，薄膜電晶體電路層3104d，薄膜電晶體基板3105d與背光模組3106d。天線316d 整合於位於薄膜電晶體基板3105d與背光模組3106d之間的層3107d。在一實施例中，天線316d可配置於顯示面板310d的非主動區域，且配置於薄膜電晶體基板3105d與背光模組3106d之間的層3107d。
在圖3D中，因為顯示驅動器320d接合於與天線316d的層3107d不同的薄膜電晶體電路層3104d之上，軟性印刷電路360d用於電性耦接天線316d至顯示驅動器320d。在一些實施例中，天線316d可通過軟性印刷電路360d、370d與顯示驅動器320d耦接至系統板350d。
參考圖4A ~ 圖4C，圖4A ~ 圖4C繪示根據本發明的一實施例的整合天線於有機發光二極體 (OLED) 顯示面板中的位置。從有機發光二極體顯示面板的前側至後側，有機發光二極體顯示面板可包括偏光片，有機發光二極體層，薄膜電晶體電路層，玻璃層。
參考圖4A，圖4A繪示了一種包括有機發光二極體顯示面板410a，顯示驅動器420a，軟性印刷電路470a，系統板450a的顯示裝置400a。有機發光二極體顯示面板410a包括封裝層4101a，有機發光二極體層4102a，薄膜電晶體電路層4103a，玻璃層4104a。天線416a整合於位於封裝層4101a之上的層4106a。在一實施例中，天線416a配置於有機發光二極體顯示面板410a的非主動區域，且在封裝層4101a與有機發光二極體層4102a之間的層4106a。
在圖4A中，顯示驅動器420a接合於與天線416a的層4106a不同的薄膜電晶體電路層4103a之上，因此軟性印刷電路460a用於電性耦接天線416a至顯示驅動器420a。在一些實施例中，天線416a可通過軟性印刷電路460a、470a與顯示驅動器420a 耦接至系統板450a。
參考圖4B，圖4B繪示了一種包括有機發光二極體顯示面板410b，顯示驅動器420b，軟性印刷電路470b，系統板450b的顯示裝置400b。有機發光二極體顯示面板410b包括封裝層4101b，有機發光二極體層4102b，薄膜電晶體電路層4103b，玻璃層4104b。天線416b整合於薄膜電晶體電路層4103b。在一些實施例中，天線416b可配置於有機發光二極體顯示面板410b的非主動區域，且配置於有機發光二極體顯示面板410b的薄膜電晶體電路層4103b。
在圖4B中，顯示驅動器420b接合於薄膜電晶體電路層4103b之上，因此天線416b電性耦接至顯示驅動器420b。天線416b可通過軟性印刷電路470b與顯示驅動器420b耦接至系統板450b。
參考圖4C，圖4C繪示了一種包括有機發光二極體顯示面板410c，顯示驅動器420c，軟性印刷電路470c，系統板450c的顯示裝置400c。有機發光二極體顯示面板410c包括封裝層4101c，有機發光二極體層4102c，薄膜電晶體電路層4103c，玻璃層 4104c。天線416c整合於有機發光二極體顯示面板410c的玻璃層4104c之下的層4106c。在一實施例中，天線416c配置於有機發光二極體顯示面板410c的非主動區域，且配置於玻璃層4104c之下的層4106c。
在圖4C中，顯示驅動器420c接合於不同於天線416c的層4106c的薄膜電晶體電路層4103c，因此軟性印刷電路460c用於電性耦接天線416c至顯示驅動器420c。在一些實施例中，天線416c可通過軟性印刷電路460c、470c與顯示驅動器420c耦接至系統板。
參考圖5，圖5繪示本發明一實施例的具有整合天線的顯示裝置於發現模式的天線訊號。發現模式經配置以藉由周期性地產生射頻場 (RF field) 並聆聽回應訊號，以發現連接至顯示裝置的其他裝置。在一實施例中，當顯示裝置開機時啟動發現模式。
在發現模式，有多個週期性時間區間T，其中每個週期性時間區間T包括輪詢區間TPOLL 與聆聽區間TLISTEN 。於輪詢區間TPOLL 產生射頻場並廣播至圍繞顯示裝置的環境。於聆聽區間TLISTEN 停止產生射頻場並從其他裝置聆聽回應訊號顯示裝置。在一些實施例中，聆聽區間TLISTEN 較輪詢區間TPOLL 長，但本發明不限於此。
參考圖6，圖6繪示本發明一實施例的具有整合天線的顯示裝置的不同訊號及訊號時序。訊號包括垂直同步訊號Vsync，顯示訊號SDT 、觸控訊號STT 與天線訊號SAN ，其中顯示訊號SDT 用於定義顯示區間 (DT1、DT2、... DTm) ，觸控訊號STT 用於定義觸控區間 (TT1、TT2、... TTn)，天線訊號SAN 用於定義天線控制區間 (AN)。
垂直同步訊號Vsync可包括多個垂直同步脈衝。顯示訊號SDT 可用於顯示影像資料於顯示面板之上，觸控訊號STT 可用於感測執行於顯示面板上的觸碰與手勢。顯示訊號SDT 發生於顯示區間DT1 ~ DTm，觸控訊號STT 發生於觸控區間 TT1、TT2、... TTn，天線訊號SAN 發生於天線控制區間AN，其中顯示區間DT1 ~ DTm、觸控區間 TT1、TT2、... TTn、天線控制區間AN互相不重疊。
天線訊號SAN 於天線在不同模式下，可用以發現，配對，與其他裝置通訊及執行其他相關功能。在圖6中，用於發現模式的天線訊號SAN 包括天線控制區間AN，用以產生射頻場，其中射頻場於輪詢區間廣播至周遭環境以偵測或發現其他連接裝置。顯示面板於聆聽區間停止產生射頻場並聆聽來自其他裝置的回應訊號。發現模式可包括多個週期性時間區間，其中每一週期性時間區間包括輪詢區間與聆聽區間。輪詢區間與聆聽區間的長度根據設計要求設定。
因為輪詢區間與顯示區間DT1 ~ DTm、觸控區間 TT1、TT2、... TTn互相不重疊，射頻場的產生並不干擾控制顯示面板的顯示訊號SDT 與觸控訊號STT 。換言之，顯示驅動器可使用天線訊號SAN 控制天線，並使用顯示訊號SDT 控制顯示面板，使用觸控訊號STT 感測執行於顯示面板上的觸碰與手勢，三者互不干擾。
參考圖7，圖7繪示本發明一實施例的適用於具有整合天線的顯示裝置的方法的流程圖。於步驟S710，於輪詢區間使用整合天線廣播輪詢訊號。輪詢訊號可以是整合天線廣播的射頻場。  於步驟S720，具有整合天線的顯示裝置於聆聽區間從其他裝置聆聽回應訊號。於步驟S730， 具有整合天線的顯示裝置連接並與其他裝置通訊以作為從其他裝置接收回應訊號的回應，其中聆聽區間較輪詢訊號長，且輪詢區間在顯示裝置的天線控制區間之內。
綜上所述，從以上的實施例可知，天線整合於顯示裝置的顯示面板的非主動顯示區域，且天線控制器整合於顯示裝置的顯示驅動器。換言之，顯示驅動器經配置以控制顯示裝置的顯示面板與整合天線。因此，可避免顯示面板與天線之間的干擾並有效地使用顯示裝置的內部空間。此外，天線於顯示裝置的天線控制區間廣播輪詢訊號 (例如，射頻場)，因此可避免天線操作與顯示面板操作(例如，觸控操作或/且顯示操作) 之間的干擾。
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。
100:顯示裝置 110:顯示面板 112:主動區域 114:非主動區域 116:天線 120:驅動IC 130:軟性印刷電路 131:發送/接收訊號 140:天線匹配電路 150:系統板 220:顯示驅動器 221:天線介面 222:天線控制器 223:觸控電路 224:源極驅動器 225:閘極控制電路 226:類比控制電路 227:數位控制電路 228:電源 229:介面以及輸入/輸出端 300a、300b、300c、300d、400a、400b、400c:顯示裝置 310a、310b、310c、310d:液晶顯示面板 320a、320b、320c、320d、420a、420b、420c:顯示驅動器 410a、410b、410c:有機發光二極體顯示面板 3101a、3101b、3101c、3101d:偏光片 4101a、4101b、4101c:封裝層 3102a、3102b、3102c、3102d:彩色濾光片 3103a、3103b、3103c、3103d:液晶層 3104a、3104b、3104c、3104d、4103a、4103b、4103c:TFT電路層 3105a、3105b、3105c、3105d:TFT基板 3106a、3106b、3106c、3106d:背光模組 316a、316b、316c、316d、416a、416b、416c:天線 3107b、3107d、4106a、4106c:層 350a、350b、350c、350d、450a、450b、450c:系統板 360b、360d、370a、370b、370c、370d、460a、460c、470a、470b、470c:軟性印刷電路 4102a、4102b、4102c:OLED層 4104a、4104b、4104c:玻璃或PI層 TPOLL:輪詢區間 TLISTEN:聆聽區間 T:時間區間 RF:射頻 Vsync:垂直同步訊號 SDT:顯示訊號 STT:觸控訊號 DT1 ~ DTm:顯示區間 TT1 ~ TTn:觸控區間 AN:天線控制區間 SAN:天線訊號 S710、S720、S730:步驟
圖1繪示本發明一實施例的顯示裝置的電路圖。 圖2繪示本發明一實施例的顯示裝置的顯示驅動器。 圖3A ~ 圖3D繪示本發明一實施例的整合天線於液晶顯示(LCD) 面板中的位置。 圖4A ~ 圖4C繪示本發明一實施例的整合天線於有機發光二極體 (OLED) 顯示面板中的位置。 圖5繪示本發明一實施例的具有整合天線的顯示裝置於發現模式的天線訊號。 圖6繪示本發明一實施例的具有整合天線的顯示裝置的不同訊號。 圖7繪示本發明一實施例的適用於顯示裝置的方法的流程圖。
S710、S720、S730:步驟

Claims (5)

  1. 一種適用於具有整合天線的顯示裝置的方法，包括： 於輪詢區間使用所述整合天線廣播輪詢訊號； 於聆聽區間從其他裝置聆聽回應訊號；以及 連接並與其他裝置通訊以作為從其他裝置接收所述回應訊號的回應，其中所述聆聽區間較所述輪詢訊號長，且所述輪詢區間在所述顯示裝置的天線控制區間內。
  2. 如請求項1所述的方法，其中所述天線控制區間包括當顯示面板上的顯示內容保持不更新時的時間區間。
  3. 如請求項1所述的方法，更包括： 於顯示區間與觸控區間控制所述顯示面板，其中所述顯示區間、所述觸控區間與所述天線控制區間不重疊。
  4. 如請求項1所述的方法，更包括： 當所述整合天線於待機模式、睡眠模式、省電模式、或關機模式時，對所述整合天線設定預定電壓位準。
  5. 如請求項1所述的方法，其中所述輪詢區間與所述聆聽區間形成發現模式的週期性時間區間。
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