TWI832410B - Display device and control method thereof - Google Patents
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本發明是有關於一種顯示裝置及其控制方法,且特別是有關於一種可提升顯示品質的顯示裝置及其控制方法。 The present invention relates to a display device and a control method thereof, and in particular, to a display device and a control method thereof that can improve display quality.
習知技術中,虛擬實境的顯示器,其背光光源都需要等到液晶顯示器的訊號掃描完後才會被點亮,並藉此避免殘影的感覺。但隨著顯示器解析度以及更新頻率的提高,同一幀週期(frame period)中,可能面臨到訊號來不及掃描完或者液晶還未達到穩定狀態就要點亮背光光源。這樣的情況,將導致顯示畫面出現嚴重的殘影現象。 In the conventional technology, the backlight of the virtual reality display needs to wait until the signal of the liquid crystal display is scanned before it is lit, thereby avoiding the feeling of afterimage. However, with the improvement of display resolution and update frequency, in the same frame period, the backlight source may be turned on before the signal has time to be scanned or the liquid crystal has not reached a stable state. Such a situation will lead to serious image retention on the display screen.
本發明提供一種顯示裝置及其控制方法,可有效提升顯示品質。 The present invention provides a display device and a control method thereof, which can effectively improve display quality.
本發明的顯示裝置包括顯示面板、第一光源以及第二光源。第一光源鄰近顯示面板的第一側邊進行設置,對應顯示面板 的第一部份顯示區域。第二光源鄰近顯示面板的第二側邊進行設置,對應顯示面板的第二部份顯示區域,其中第一側邊與第二側邊相對。其中第一光源以及第二光源分別在第一時間區間以及第二時間區間被點亮,第一時間區間以及第二時間區間中具有間隔時間。 The display device of the present invention includes a display panel, a first light source and a second light source. The first light source is arranged adjacent to the first side of the display panel, corresponding to the display panel The first part of the display area. The second light source is disposed adjacent to the second side of the display panel, corresponding to the second partial display area of the display panel, where the first side is opposite to the second side. The first light source and the second light source are respectively lit in the first time interval and the second time interval, and there is an interval time in the first time interval and the second time interval.
本發明的控制方法包括:鄰近顯示面板的第一側邊設置第一光源,使第一光源對應顯示面板的第一部份顯示區域;鄰近顯示面板的第二側邊設置第二光源,使第二光源對應顯示面板的第二部份顯示區域,第一側邊與該第二側邊相對;以及,分別在第一時間區間以及第二時間區間點亮第一光源以及第二光源,其中第一時間區間以及第二時間區間中具有間隔時間。 The control method of the present invention includes: setting a first light source adjacent to the first side of the display panel so that the first light source corresponds to the first part of the display area of the display panel; setting a second light source adjacent to the second side of the display panel so that the second light source The two light sources correspond to the second part of the display area of the display panel, and the first side is opposite to the second side; and the first light source and the second light source are respectively lit in the first time interval and the second time interval, wherein the first light source and the second light source are respectively lit. There is an interval time in the first time interval and the second time interval.
基於上述,本發明的顯示裝置具有側入式的第一光源以及第二光源,並透過在第一部分顯示區的畫素穩定後點亮對應的第一光源,並在第二部分顯示區的畫素穩定後點亮對應的第二光源。如此一來,顯示裝置不會在光源點亮過程中,因畫素的不穩定動作而產生殘影現象,可有效提升顯示品質。 Based on the above, the display device of the present invention has a side-type first light source and a second light source, and lights up the corresponding first light source after the pixels in the first part of the display area are stabilized, and lights up the pixels in the second part of the display area. After the element is stable, the corresponding second light source is turned on. In this way, the display device will not produce residual images due to unstable movements of the pixels during the lighting process of the light source, which can effectively improve the display quality.
100、300、400:顯示裝置 100, 300, 400: display device
110、310、410:顯示面板 110, 310, 410: display panel
111、311、411:第一部份顯示區域 111, 311, 411: The first part of the display area
112、312、412:第二部份顯示區域 112, 312, 412: The second part of the display area
120、320、420:第一光源 120, 320, 420: first light source
130、330、430:第二光源 130, 330, 430: Second light source
210、350:導光板 210, 350: Light guide plate
440:控制器 440:Controller
D1、D2:亮度分布 D1, D2: brightness distribution
FM1、FM2:幀週期 FM1, FM2: frame period
LB1、LB2:光束 LB1, LB2: Beam
LD1、LD2:發光二極體 LD1, LD2: light emitting diodes
S1、S2:側邊 S1, S2: side
S510~S560、S610~S630:步驟 S510~S560, S610~S630: steps
TI:間隔時間 TI: interval time
圖1繪示本發明一實施例的顯示裝置的示意圖。 FIG. 1 is a schematic diagram of a display device according to an embodiment of the present invention.
圖2繪示本發明圖1實施例的顯示裝置的剖面圖。 FIG. 2 is a cross-sectional view of the display device according to the embodiment of FIG. 1 of the present invention.
圖3A至圖3D繪示本發明實施例的顯示裝置的動作示意圖。 3A to 3D are schematic operational diagrams of the display device according to the embodiment of the present invention.
圖4繪示本發明另一實施例的顯示裝置的示意圖。 FIG. 4 is a schematic diagram of a display device according to another embodiment of the present invention.
圖5繪示本發明實施例的顯示裝置的動作流程圖。 FIG. 5 illustrates an operation flow chart of the display device according to the embodiment of the present invention.
圖6繪示本發明一實施例的顯示裝置的控制方法的流程圖。 FIG. 6 illustrates a flowchart of a control method of a display device according to an embodiment of the present invention.
請參照圖1,圖1繪示本發明一實施例的顯示裝置的示意圖。顯示裝置100包括顯示面板110、第一光源120以及第二光源130。第一光源120可鄰近顯示面板110的第一側邊S1進行設置,第二光源130則可鄰近顯示面板110的第二側邊S2進行設置。其中,第一側邊S1與第二側邊S2為相對的二側邊。
Please refer to FIG. 1 , which is a schematic diagram of a display device according to an embodiment of the present invention. The
在本實施例中,第一光源120可透過多個發光二極體LD1來實施,並形成一個燈條(light bar)。第二光源130同樣可透過多個發光二極體LD2來實施,並形成另一個燈條。當然,在本發明其他實施例中,第一光源120以及第二光源130也可應用本領域具通常知識者所熟知的任意形式的發光器所形成的光條來建構,沒有特殊的限制。在本實施例中,第一光源120以及第二光源130提供顯示面板110側入式光源。
In this embodiment, the
此外,本發明實施例中的顯示面板110可以為液晶顯示面板,並具有多個液晶顯示畫素。
In addition, the
在圖1中,第一光源120對應顯示面板110上半部的第一部份顯示區域111,並用以點亮顯示面板110的第一部份顯示區域111。第二光源130則對應顯示面板110下半部的第二部份顯示
區域112,並用以點亮顯示面板110的第二部份顯示區域112。其中,第一部份顯示區域111與第二部份顯示區域112可以有部分區域相互重疊,或者,第一部份顯示區域111與第二部份顯示區域112可以不相互重疊。
In FIG. 1 , the
關於動作細節,當顯示裝置100執行影像顯示動作時,第一光源120可在一第一時間區間被點亮,而第二光源130則可在一第二時間區間被點亮。其中第一時間區間與第二時間區間中可具有一間隔時間。細節上來說明,當顯示裝置100執行影像顯示動作時,第一部份顯示區域111的顯示資料,可在第一時間區間前完成被寫入。並且,在第一部份顯示區域111的畫素對應被寫入的顯示資料所對應的液晶翻轉動作穩定後的第一時間區間中,第一光源120才被點亮。
Regarding action details, when the
在另一方面,第二部份顯示區域112的顯示資料可接續在第一部份顯示區域111的顯示資料的寫入動作後接續被執行。並且,在第二部份顯示區域112的畫素對應被寫入的顯示資料所對應的液晶翻轉動作穩定後的第二時間區間中,第二光源130才被點亮。
On the other hand, the display data of the second
值得一提的,本實施例的第一光源120以及第二光源130都是在分別對應的第一部份顯示區域111以及第二部份顯示區域112的畫素穩定後,才分別被點亮。也就是說,第一光源120以及第二光源130不會在所對應的畫素不穩定的狀態下被點亮,可減低所產生的顯示畫面發生殘影現象的可能,提升顯示品質。
It is worth mentioning that the
以下請同步參照圖1以及圖2,其中圖2繪示本發明圖1實施例的顯示裝置的剖面圖。在圖2中,顯示裝置100更包括導光板210。導光板210與顯示面板110相互重疊配置。第一光源120鄰近顯示面板110的第一側邊S1進行設置,第二光源130則鄰近顯示面板110的第二側邊S2進行設置。第一光源120由多個發光二極體LD1來建構,第二光源130則由多個發光二極體LD2來建構。
Please refer to FIG. 1 and FIG. 2 simultaneously below. FIG. 2 is a cross-sectional view of the display device according to the embodiment of FIG. 1 of the present invention. In FIG. 2 , the
在本實施例中,導光板210可將第一光源120所發送出的多個第一光束傳送至顯示面板110的第一部份顯示區域111中。導光板210則可將第二光源130所發送出的多個第二光束傳送至顯示面板110的第一部份顯示區域112中。
In this embodiment, the
以下請參照圖3A至圖3D,圖3A至圖3D繪示本發明實施例的顯示裝置的動作示意圖。在圖3A中,顯示裝置300包括顯示面板310、第一光源320以及第二光源330。第一光源320鄰近顯示面板310的上側邊進行設置,第二光源330鄰近顯示面板310的下側邊進行設置。在第一時間區間中,第一光源320可被點亮,並對應點亮顯示面板310的第一部份顯示區域311。此時,第二光源330不被點亮。顯示裝置300可執行非第一部份顯示區域311的第二部份顯示區域的資料寫入動作。
Please refer to FIG. 3A to FIG. 3D below. FIG. 3A to FIG. 3D are schematic diagrams of the operation of the display device according to the embodiment of the present invention. In FIG. 3A , the
值得一提的,在圖3A中,第一部份顯示區域311的亮度可如亮度分布D1所示,第一部份顯示區域311的亮度可隨與第一光源320間的距離增大而逐漸降低。
It is worth mentioning that in FIG. 3A , the brightness of the first
對應圖3A,在圖3C中,在第一時間區間中,第一光源320可發送多個第一光束LB1至導光板350中。導光板350並可將第一光束LB1傳導至顯示面板310的第一部份顯示區域311中,並藉以點亮第一部份顯示區域311。
Corresponding to FIG. 3A , in FIG. 3C , in the first time interval, the first
接著,在圖3B中,在第二時間區間中,第二光源330可被點亮,並對應點亮顯示面板310的第二部份顯示區域312。此時,第一光源320不被點亮。顯示裝置300可執行非第二部份顯示區域312的第一部份顯示區域311的資料寫入動作。
Next, in FIG. 3B , in the second time interval, the second
值得一提的,在圖3B中,第二部份顯示區域312的亮度可如亮度分布D2所示,第二部份顯示區域312的亮度可隨與第二光源330間的距離增大而逐漸降低。
It is worth mentioning that in FIG. 3B , the brightness of the second
對應圖3B,在圖3D中,在第二時間區間中,第二光源330可發送多個第二光束LB2至導光板350中。導光板350並可將第二光束LB2傳導至顯示面板310的第二部份顯示區域312中,並藉以點亮第二部份顯示區域312。
Corresponding to FIG. 3B , in FIG. 3D , in the second time interval, the second
上述的第一時間區間以及第二時間區間可以交替的週期性的產生,並持續維持顯示裝置300的畫面顯示動作。
The above-mentioned first time interval and second time interval may occur alternately and periodically, and the screen display operation of the
以下請參照圖4,圖4繪示本發明另一實施例的顯示裝置的示意圖。顯示裝置400包括顯示面板410、第一光源420、第二光源430以及控制器440。第一光源420以及第二光源430分別鄰近顯示面板410相對的兩個側邊進行設置。控制器440可耦接顯示面板410、第一光源420以及第二光源430,用以操控顯示面板
410的訊號掃描動作,以及操控第一光源420以及第二光源430的點亮動作。
Please refer to FIG. 4 below, which is a schematic diagram of a display device according to another embodiment of the present invention. The
本發明的顯示裝置400可以設置在虛擬影像顯示系統中,並用以顯示虛擬影像,以達到虛擬實境、擴增實境或混合實境的影像顯示效果。
The
以下請同步參照圖4以及圖5,其中圖5繪示本發明實施例的顯示裝置的動作流程圖。在圖5中,控制器440可在第一幀週期(frame period)FM1中,在步驟S510中針對顯示面板410的第一部份顯示區域執行顯示資料的訊號掃描動作,並藉以針對第一部份顯示區域執行第一資料寫入動作。接著,在步驟S520中,控制器440可針對顯示面板410的第二部份顯示區域執行顯示資料的訊號掃描動作,並藉以針對第二部份顯示區域執行第二資料寫入動作。
Please refer to FIG. 4 and FIG. 5 simultaneously below. FIG. 5 illustrates an operation flow chart of the display device according to the embodiment of the present invention. In FIG. 5 , the
另外,步驟S530會在步驟S510結束後持續被完成。其中,在步驟S530中,第一部份顯示區域中的畫素(液晶)可根據新寫入的顯示資料而產生翻轉的狀態,並在步驟S530結束後,第一部份顯示區域中所有的畫素均為穩定的狀態。在當第一部份顯示區域中所有的畫素均為穩定的狀態後,控制器440可在步驟S540點亮第一光源420,並藉此點亮顯示面板410的第一部份顯示區域。
In addition, step S530 will continue to be completed after step S510 ends. Among them, in step S530, the pixels (liquid crystals) in the first partial display area can be flipped according to the newly written display data, and after the end of step S530, all the pixels (liquid crystals) in the first partial display area The pixels are all in a stable state. After all the pixels in the first partial display area are in a stable state, the
在另一方面,步驟S550會在步驟S520結束後持續被完成。其中,在步驟S550中,第二部份顯示區域中的畫素(液晶)
可根據新寫入的顯示資料而產生翻轉的狀態,並在步驟S550結束後,第二部份顯示區域中所有的畫素均為穩定的狀態。在當第二部份顯示區域中所有的畫素均為穩定的狀態後,控制器440可在步驟S560點亮第二光源430,並藉此點亮顯示面板410的第二部份顯示區域。
On the other hand, step S550 will continue to be completed after step S520 ends. Among them, in step S550, the pixels (liquid crystal) in the second part of the display area
The flipped state can be generated according to the newly written display data, and after the end of step S550, all pixels in the second part of the display area are in a stable state. After all the pixels in the second partial display area are in a stable state, the
在第二幀週期FM2可重複執行上述的多個步驟,以維持顯示裝置400的顯示動作。
The above-mentioned multiple steps may be repeatedly executed during the second frame period FM2 to maintain the display operation of the
值得一提的,步驟S560可在第二幀週期FM2中執行,並與第二幀週期FM2中的第一部份顯示區域的訊號掃描動作的執行時間相互重疊。如此一來,步驟S540以及S560都可以在對應的部份顯示區域的畫素穩定後才被執行,可以減低因畫素不穩定而造成的殘影現象,提升顯示品質。在本實施例中,步驟S540以及S560並不連續發生,步驟S540以及S560中可具有非零的間隔時間TI。 It is worth mentioning that step S560 can be executed in the second frame period FM2, and overlaps with the execution time of the signal scanning operation of the first part of the display area in the second frame period FM2. In this way, steps S540 and S560 can be executed only after the pixels in the corresponding partial display area are stable, which can reduce the image sticking phenomenon caused by unstable pixels and improve the display quality. In this embodiment, steps S540 and S560 do not occur continuously, and there may be a non-zero interval TI in steps S540 and S560.
控制器440可以為具運算能力的處理器。或者,控制器440可以是透過硬體描述語言(Hardware Description Language,HDL)或是其他任意本領域具通常知識者所熟知的數位電路的設計方式來進行設計,並透過現場可程式邏輯門陣列(Field Programmable Gate Array,FPGA)、複雜可程式邏輯裝置(Complex Programmable Logic Device,CPLD)或是特殊應用積體電路(Application-specific Integrated Circuit,ASIC)的方式來實現的硬體電路。
The
在本實施例中,控制器440可包括驅動器,用以驅動並點亮第一光源420以及第二光源430。
In this embodiment, the
以下請參照圖6,圖6繪示本發明一實施例的顯示裝置的控制方法的流程圖。其中,在步驟S610中,鄰近顯示面板的第一側邊設置第一光源,使第一光源對應顯示面板的第一部份顯示區域。並且,在步驟S620中,鄰近顯示面板的第二側邊設置第二光源,使第二光源對應顯示面板的第二部份顯示區域。在步驟S630中,則分別在第一時間區間以及第二時間區間點亮第一光源以及第二光源,其中第一時間區間以及第二時間區間中具有間隔時間。 Please refer to FIG. 6 below, which is a flow chart of a control method of a display device according to an embodiment of the present invention. In step S610, a first light source is provided adjacent to the first side of the display panel, so that the first light source corresponds to the first partial display area of the display panel. Furthermore, in step S620, a second light source is provided adjacent to the second side of the display panel, so that the second light source corresponds to the second partial display area of the display panel. In step S630, the first light source and the second light source are respectively lit in the first time interval and the second time interval, where there is an interval time in the first time interval and the second time interval.
關於上述步驟的實施細節,在前述的實施例中已有詳細的說明,在此恕不多贅述。 The implementation details of the above steps have been described in detail in the foregoing embodiments and will not be described again here.
綜上所述,本發明的顯示裝置透過在顯示面板相對的兩個側邊上設置側入式光源,並透過在對應的畫素穩定後,分時點亮側入式光源,可有效減低因畫素(液晶翻轉)的不穩定狀態所造成的殘影現象,有效提升顯示品質。 To sum up, the display device of the present invention can effectively reduce the risk by arranging side-illuminated light sources on two opposite sides of the display panel, and by lighting up the side-illuminated light sources in a time-sharing manner after the corresponding pixels are stabilized. The image retention phenomenon caused by the unstable state of pixels (liquid crystal flipping) effectively improves display quality.
100:顯示裝置 100:Display device
110:顯示面板 110:Display panel
111:第一部份顯示區域 111: The first part of the display area
112:第二部份顯示區域 112: The second part of the display area
120:第一光源 120:First light source
130:第二光源 130:Second light source
LD1、LD2:發光二極體 LD1, LD2: light emitting diodes
S1、S2:側邊 S1, S2: side
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US11204459B2 (en) * | 2018-11-07 | 2021-12-21 | Samsung Display Co., Ltd. | Light providing unit, display device including the same, and method of manufacturing display device |
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CN104102041A (en) * | 2013-04-08 | 2014-10-15 | 株式会社日本显示器 | Display device and electronic apparatus |
US11204459B2 (en) * | 2018-11-07 | 2021-12-21 | Samsung Display Co., Ltd. | Light providing unit, display device including the same, and method of manufacturing display device |
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