TW202135041A - Display status detection system - Google Patents
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Abstract
Description
本發明涉及圖像顯示技術領域,尤其涉及一種顯示狀態偵測系統。The present invention relates to the field of image display technology, in particular to a display state detection system.
放置於戶外的顯示屏,若出現黑屏或花屏等不良現象時往往無法被及時發現,影響圖像顯示效果,且難以及時修理。When the display screen is placed outdoors, if there is a black screen or a blurred screen, it is often unable to be detected in time, which affects the image display effect and is difficult to repair in time.
本發明一方面提供一種顯示狀態偵測系統,用於偵測目標顯示屏的顯示狀態,所述顯示狀態偵測系統包括: 控制模塊,用於分時生成並分時發送圖像顯示指令及狀態偵測指令; 主晶片,與所述目標顯示屏電連接,用於分時驅動所述目標顯示屏顯示圖像或偵測所述目標顯示屏的顯示狀態; 顯示控制模塊,與所述控制模塊通信連接且與所述主晶片電連接,用於根據所述圖像顯示指令控制所述主晶片驅動所述目標顯示屏顯示圖像;以及 偵測控制模塊,與所述控制模塊通信連接且與所述主晶片電連接,用於根據所述狀態偵測指令控制所述主晶片偵測所述目標顯示屏的顯示狀態,並回傳所述主晶片生成的偵測結果至所述控制模塊。One aspect of the present invention provides a display state detection system for detecting the display state of a target display screen, and the display state detection system includes: The control module is used for time-sharing generation and time-sharing to send image display instructions and state detection instructions; The main chip is electrically connected to the target display screen, and is used to drive the target display screen to display images in a time-sharing manner or to detect the display state of the target display screen; A display control module, which is communicatively connected with the control module and electrically connected to the main chip, and configured to control the main chip to drive the target display screen to display images according to the image display instruction; and The detection control module, which is communicatively connected to the control module and electrically connected to the main chip, is used to control the main chip to detect the display state of the target display screen according to the state detection instruction, and return all The detection result generated by the master chip is sent to the control module.
上述的顯示狀態偵測系統,藉由控制模塊分時生成並發送圖像顯示指令及狀態偵測指令,以分時藉由顯示控制模塊控制主晶片驅動目標顯示屏顯示圖像及藉由偵測控制模塊控制主晶片檢測目標顯示屏的顯示狀態。在不影響目標顯示屏正常顯示的基礎上,可遠程獲知目標顯示屏的顯示狀態,有利於及時發現目標顯示屏的故障並及時修理,進而有利於提高目標顯示屏的圖像顯示效果。The above-mentioned display state detection system generates and sends image display instructions and state detection instructions in a time-sharing manner through the control module, and controls the main chip to drive the target display screen to display images in a time-sharing manner through the display control module. The control module controls the display status of the main chip inspection target display screen. On the basis of not affecting the normal display of the target display screen, the display status of the target display screen can be obtained remotely, which is beneficial to promptly discovering the failure of the target display screen and repairing in time, thereby helping to improve the image display effect of the target display screen.
實施例一Example one
請參閱圖1,顯示狀態偵測系統10用於偵測目標顯示屏20的顯示狀態。目標顯示屏20為以複數發光二極體21作為發光源的顯示屏,顯示狀態偵測系統10用於偵測複數發光二極體21是否正常發光。複數發光二極體21陣列式排布構成目標顯示屏20的畫素陣列22。發光二極體21故障時,無法正常發光,目標顯示屏20顯示的圖像失真。對於設置於戶外的顯示屏,例如設置於公共場所用於投放商業廣告的目標顯示屏,發光二極體故障時,往往無法及時獲知。本實施例的顯示狀態偵測系統10,用於遠程對目標顯示屏20的顯示狀態進行實時或定時偵測,有利於及時發現目標顯示屏20的故障。Please refer to FIG. 1, the display
請參閱圖2,顯示狀態偵測系統10包括控制模塊11、與控制模塊11通信連接的顯示控制模塊12、與控制模塊11通信連接的偵測控制模塊13、以及電連接顯示控制模塊12及偵測控制模塊13的主晶片14。主晶片14電連接目標顯示屏20。Referring to Figure 2, the display
控制模塊11用於分時生成並發送圖像顯示指令及狀態偵測指令。控制模塊11可為用戶端電腦、手機等。用戶藉由控制模塊11中的應用程序生成並發送所述圖像顯示指令及所述狀態偵測指令。本實施例中,所述圖像顯示指令及所述狀態偵測指令為控制模塊11根據用戶實時的輸入操作而生成並發送。於其他實施例中,所述圖像顯示指令及所述狀態偵測指令藉由定時方式發送。The
顯示控制模塊12與控制模塊11通信連接。顯示控制模塊12用於根據控制模塊11發送的圖像顯示指令,控制主晶片14驅動複數發光二極體21發光,各發光二極體21藉由變化發光輝度以使得目標顯示屏20顯示不同的圖像。顯示控制模塊12為一電路模塊,設置於目標顯示屏20上。The
偵測控制模塊13與控制模塊11通信連接,用於根據控制模塊11發送的狀態偵測指令控制主晶片14偵測目標顯示屏20的顯示狀態。偵測控制模塊13還用於回傳主晶片14生成的偵測結果至控制模塊11。偵測控制模塊13為一電路模塊,設置於目標顯示屏20上。The
偵測控制模塊13包括開關單元131。於一實施例中,開關單元131為一開關元件。於另一實施例中,開關單元131為一開關電路。The
控制模塊11發送所述圖像顯示指令時,開關單元131保持斷開,偵測控制模塊13無訊號輸出。所述圖像顯示指令傳輸至顯示控制模塊12,顯示控制模塊12根據所述圖像顯示指令控制主晶片14驅動目標顯示屏20顯示圖像。控制模塊11發送所述狀態偵測指令時,開關單元131導通,偵測控制模塊13根據所述狀態偵測指令控制主晶片14偵測目標顯示屏20的顯示狀態。When the
請繼續參閱圖2,顯示狀態偵測系統10還包括網絡通信模塊15,在實際產品中,網絡通信模塊15設置於目標顯示屏20上。網絡通信模塊15用於建立控制模塊11與顯示控制模塊12及偵測控制模塊13之間的網絡連接,以實現遠程控制目標顯示屏20。Please continue to refer to FIG. 2, the display
主晶片14與顯示控制模塊12、偵測控制模塊13及目標顯示屏20電連接,主晶片14用於分時根據顯示控制模塊12的控制驅動目標顯示屏20顯示圖像及根據偵測控制模塊13的控制偵測目標顯示屏20的顯示狀態。The
請參閱圖3,於本發明另一實施例中,目標顯示屏20包括複數顯示單元23,顯示狀態偵測系統10包括複數偵測控制模塊13。每一偵測控制模塊13唯一對應電連接一顯示單元23。本實施例中,複數偵測控制模塊13依次串聯,並共同電連接至控制模塊11及主晶片14。於另一實施例中,複數偵測控制模塊13可以並聯的方式分別電連接至控制模塊11及主晶片14。每一偵測控制模塊13用於根據控制模塊11發送的狀態偵測指令控制主晶片14偵測目標顯示屏20中與其電連接的顯示單元23的顯示狀態。被投放於戶外的目標顯示屏20尺寸較大,藉由將整個目標顯示屏20劃分為複數顯示單元23,並設置複數偵測控制模塊13用於分別對各個顯示單元23單獨控制,可降低每個偵測控制模塊13的負載,從而有利於增強顯示狀態偵測系統10輸出至目標顯示屏20的訊號。Please refer to FIG. 3, in another embodiment of the present invention, the
請同時參閱圖4及圖5,主晶片14包括偵測單元141,偵測單元141用於偵測複數發光二極體21的發光狀態。也即,偵測單元141用於偵測目標顯示屏20在顯示圖像時,複數發光二極體21是否正常發光。每一發光二極體21正常發光時其正負極電壓差值及流經發光二極體21的電流值均在一預設範圍內。本實施例中偵測單元141用於根據每一發光二極體21正負極電壓差值是否在所述預設範圍內,判斷每一發光二極體21是否正常發光。於本發明另一實施例中,偵測單元141用於根據流經每一發光二極體21的電流值是否在預設範圍內,判斷每一發光二極體21是否正常發光。本實施例中,複數發光二極體21中,部分發光二極體21發射藍光,部分發光二極體21發射綠光,其餘發光二極體21發射紅光。發射藍光及發射綠光的發光二極體21在正常發光時,正負電壓差為3.2V左右,也即,正負電壓差在3.2V的一個預設範圍內波動,例如,正負電壓差在3.2±0.5V範圍內波動,則發射藍光及發射綠光的各個發光二極體21所對應的所述預設範圍為3.2±0.5V;發射紅光的發光二極體21在正常發光時,正負電壓差為2.4V左右,也即,正負電壓差在2.4V的一個預設範圍內波動,例如,正負電壓差在2.4±0.5V範圍內波動,則發射紅光的各個發光二極體21所對應的所述預設範圍為2.4±0.5V。Please refer to FIGS. 4 and 5 at the same time. The
於本發明另一實施例中,目標顯示屏20中每一發光二極體21皆用於發射藍光,則,每一發光二極體21在發光狀態時,所對應的正負極之間的電壓差值的預設範圍至少部分重疊。例如,部分發光二極體21所對應的預設範圍為3.2±0.5V,部分發光二極體21所對應的預設範圍為3.0±0.5V,則每一發光二極體21在發光狀態時,所對應的正負極之間的電壓差值的預設範圍部分重疊,預設範圍的重疊部分為2.7V~3.5V。又例如各個發光二極體21所對應的預設範圍皆為3.2±0.5V,則各個發光二極體21所對應的預設範圍完全重疊。In another embodiment of the present invention, each light-
應當理解的,上述所有的數值範圍僅為舉例說明,不對本發明造成限制。It should be understood that all the above numerical ranges are only examples and do not limit the present invention.
請參閱圖5,偵測單元141包括一比較器A1,比較器A1具有一第一輸入端p、一第二輸入端q及一輸出端s。第一輸入端p分別電連接各個的發光二極體21,用於分時輸入各個發光二極體21的偵測電壓VDS,第二輸入端q用於輸入參考電壓VSDTH,輸出端s用於輸出偵測結果。第一輸入端p電連接各個發光二極體21的負極,偵測電壓VDS為發光二極體21的負極電壓。第二輸入端q輸入的參考電壓為VSDTH根據各發光二極體的正負極電壓差設定,本實施例中,VSDTH設定為0.5V。偵測電壓VDS大於參考電壓VSDTH時,輸出端s輸出1;偵測電壓VDS小於參考電壓VSDTH時,輸出端s輸出0。訊號1指示發光二極體21正常發光,訊號0指示發光二極體21故障。Referring to FIG. 5, the detecting
請再參閱圖4,主晶片14還包括電流增益調整單元142、控制邏輯單元143、控制狀態寄存器144、位移寄存器145及輸出緩存器146。主晶片14包括5個輸入端,用於分別輸入電流增益訊號R-EXT、使能訊號 、鎖存訊號LE、時鐘訊號CLK及顯示訊號SDI,主晶片14包括一輸出端,所述輸出端用於輸出偵測訊號SDO。Please refer to FIG. 4 again. The
電流增益訊號R-EXT根據目標顯示屏20及顯示狀態偵測系統10內部的硬件參數進行設置,以調節目標顯示屏20及顯示狀態偵測系統10內部的電流大小。請參閱圖6(圖6中坐標軸t表示時間),在第一時段,時鐘訊號CLK依次輸出16位脈衝訊號(圖6中省略了16位脈衝訊號中的部分脈衝訊號),顯示訊號SDI持續輸出為高電平,使得所述16位脈衝訊號移入位移位寄存器145。在第二時段,鎖存訊號LE輸出為高電平,時鐘訊號CLK持續輸出為低電平,鎖存訊號LE下降沿數據隨存至輸出緩存器146;使能訊號 輸出為低電平,則偵測單元141輸出為低電平,發光二極體21發光。本實施例在第二時段中,控制使能訊號 輸出為低電平的脈衝寬度大於300納秒,以偵測發光二極體21的偵測電壓VDS。比較器A1比較各個發光二極體21的偵測電壓VDS與參考電壓VSDTH的大小,並將比較結果藉由輸出端s返回並存儲至位移寄存器145中。在第三時段,時鐘訊號CLK再次輸出為高電平,此時位移寄存器145中存儲的比較結果以偵測訊號SDO輸出,其中,偵測訊號SDO輸出為1時,指示發光二極體21正常發光,偵測訊號SDO輸出為0時,指示發光二極體21故障。如上述的為一個作動週期T內的訊號輸出過程。顯示狀態偵測系統10可工作於複數作動週期T。The current gain signal R-EXT is set according to the internal hardware parameters of the
本實施例提供的顯示狀態偵測系統10,用於偵測被投放於戶外的目標顯示屏20的顯示狀態。藉由控制模塊11分時生成並發送圖像顯示指令及狀態偵測指令,以分時藉由顯示控制模塊12控制主晶片14驅動目標顯示屏20顯示圖像及藉由偵測控制模塊13控制主晶片14檢測目標顯示屏20的顯示狀態。在不影響目標顯示屏20正常顯示的基礎上,可遠程獲知目標顯示屏20的顯示狀態,有利於及時發現目標顯示屏20的故障並及時修理,進而有利於提高目標顯示屏20的圖像顯示效果。The display
本技術領域之普通技術人員應當認識到,以上之實施方式僅是用來說明本發明,而並非用作為對本發明之限定,只要於本發明之實質精神範圍之內,對以上實施例所作之適當改變及變化均落於本發明要求保護之範圍之內。Those of ordinary skill in the art should realize that the above embodiments are only used to illustrate the present invention, but not to limit the present invention. As long as they fall within the essential spirit of the present invention, the above embodiments are appropriately made. Changes and changes fall within the scope of protection of the present invention.
10:顯示狀態偵測系統 11:控制模塊 12:顯示控制模塊 13:偵測控制模塊 131:開關單元 14:主晶片 141:偵測單元 A1:比較器 p:第一輸入端 q:第二輸入端 s:輸出端 142:電流增益調整單元 143:控制邏輯單元 144:控制狀態寄存器 145:位移寄存器 146:輸出緩存器 15:網絡通信模塊 20:目標顯示屏 21:發光二極體 22:畫素陣列 23:顯示單元10: Display status detection system 11: Control module 12: Display control module 13: Detection control module 131: switch unit 14: Main chip 141: Detection unit A1: Comparator p: first input q: second input s: output 142: Current gain adjustment unit 143: Control logic unit 144: Control status register 145: shift register 146: output buffer 15: Network communication module 20: Target display 21: Light-emitting diode 22: Pixel array 23: display unit
圖1為本發明實施例提供的顯示狀態偵測系統與目標顯示屏的模塊結構的一示意圖。FIG. 1 is a schematic diagram of the module structure of a display state detection system and a target display screen provided by an embodiment of the present invention.
圖2為本發明實施例提供的顯示狀態偵測系統與目標顯示屏的模塊結構的另一示意圖。2 is another schematic diagram of the module structure of the display state detection system and the target display screen provided by an embodiment of the present invention.
圖3為本發明另一實施例提供的顯示狀態偵測系統與目標顯示屏的模塊結構的示意圖。3 is a schematic diagram of the module structure of the display state detection system and the target display screen provided by another embodiment of the present invention.
圖4為圖2中主晶片的模塊結構示意圖。FIG. 4 is a schematic diagram of the module structure of the main wafer in FIG. 2.
圖5為圖4中偵測單元的電路結構示意圖。FIG. 5 is a schematic diagram of the circuit structure of the detection unit in FIG. 4.
圖6為圖4所示的主晶片工作過程中的各訊號波形圖。FIG. 6 is a waveform diagram of various signals in the working process of the main chip shown in FIG. 4.
10:顯示狀態偵測系統10: Display status detection system
11:控制模塊11: Control module
12:顯示控制模塊12: Display control module
13:偵測控制模塊13: Detection control module
131:開關單元131: switch unit
14:主晶片14: Main chip
15:網絡通信模塊15: Network communication module
20:目標顯示屏20: Target display
Claims (11)
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CN202010155054.0A CN113380163A (en) | 2020-03-10 | 2020-03-10 | Display state detection system |
CN202010155054.0 | 2020-03-10 |
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TW202135041A true TW202135041A (en) | 2021-09-16 |
TWI740464B TWI740464B (en) | 2021-09-21 |
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TW109113219A TWI740464B (en) | 2020-03-10 | 2020-04-20 | Display status detection system |
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TWI317926B (en) * | 2005-12-20 | 2009-12-01 | Au Optronics Corp | Electroluminescent display panel testing apparatus and method thereof |
KR101017164B1 (en) * | 2008-03-27 | 2011-02-25 | 가부시키가이샤 히타치 디스프레이즈 | Image display device |
TWI428890B (en) * | 2010-10-08 | 2014-03-01 | Au Optronics Corp | Pixel circuit and display panel with ir-drop compensation function |
CN104464627A (en) * | 2014-12-17 | 2015-03-25 | 昆山国显光电有限公司 | Active matrix organic light emitting display and control method thereof |
KR102352610B1 (en) * | 2015-05-29 | 2022-01-19 | 엘지디스플레이 주식회사 | Driver ic and display device |
TWI625532B (en) * | 2017-03-21 | 2018-06-01 | Failure detection system and method | |
TWI683297B (en) * | 2017-11-21 | 2020-01-21 | 聯詠科技股份有限公司 | Driving apparatus for driving display panel |
CN110379359A (en) * | 2019-07-09 | 2019-10-25 | 江苏金月亮科技有限公司 | A kind of method and outdoor LED display screen of Internet of Things control outdoor LED display screen |
CN110459179B (en) * | 2019-08-30 | 2020-12-04 | 云谷(固安)科技有限公司 | Display device |
CN110853559B (en) * | 2019-12-26 | 2023-02-24 | 云谷(固安)科技有限公司 | Detection control circuit and detection control method of display panel and display panel |
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