TWI447496B - Display panel - Google Patents
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Description
本發明是有關於一種顯示面板。The present invention relates to a display panel.
一般而言，顯示器為了使畫面能提供給多個觀看者，通常會具有廣視角的顯示效果，但在某些時候或場合，例如在閱讀機密訊息或輸入密碼時，廣視角的顯示效果卻容易使機密訊息被旁人所窺視而造成機密訊息外洩。因此，為了滿足提供給多個觀看者以及在公眾場合處理機密訊息兩種不同需求，具有可切換廣視角顯示模式與窄視角顯示模式的可調整視角顯示器逐漸成為顯示器市場的主流商品之一。In general, in order to provide a picture to a plurality of viewers, the display usually has a wide viewing angle, but at certain times or occasions, such as reading confidential information or entering a password, the wide viewing angle is easy to display. Make confidential information peeped by others and cause confidential information to leak. Therefore, in order to meet the different needs of providing confidential information to a plurality of viewers and in public, an adjustable viewing angle display having a switchable wide viewing angle display mode and a narrow viewing angle display mode has gradually become one of the mainstream products in the display market.
現有顯示器的防窺機制大致上可分為下列數種技術：The anti-spying mechanism of the existing display can be roughly divided into the following technologies:
一、顯示器表面直接加裝防窺片：First, install the anti-spy film directly on the display surface:
一般防窺片主要是透過抑制大視角的亮度，使側視的觀看者無法清楚的讀取所顯示的訊息，達到隱私保護的效果。雖然方法簡單，材料也容易取得，但因為屬於額外加上一片光學膜片，會影響原本正視時顯示器的光學特性及顯示品質，而且也需要手動切換防窺與否，造成使用者在使用上較為不便。Generally, the anti-spy film mainly suppresses the brightness of the large viewing angle, so that the side view viewer cannot read the displayed message clearly, and the privacy protection effect is achieved. Although the method is simple and the material is easy to obtain, because it is an extra optical film, it will affect the optical characteristics and display quality of the display when it is originally viewed, and also need to manually switch the anti-peep or not, resulting in the user's use. inconvenient.
二、背光源控制：Second, backlight control:
利用原本出射光具有高度準直性的背光源，搭配可電壓控制的擴散片，例如高分子分散液晶膜，透過關電壓時可電壓控制的擴散片會將準直光擴散，造成在側視時有光源出射以提供廣視角顯示模式；開電壓時可電壓控制的擴散片不會對原本的準直光造成擴散作用以達成窄視角顯示模式。在理想上雖可完美避免其他人窺視訊息，且切換方便，但實際應用上因為光路控制不易，無法達成完全的準直光。雖然可降低背光源在大視角的分佈，但卻無法將大視角的亮度完全降至無法辨識，因此在防窺表現上無法得到令人滿意的效果。A backlight with a high degree of collimation of the originally emitted light, combined with a voltage-controlled diffusion sheet, such as a polymer-dispersed liquid crystal film, can diffuse the collimated light by a voltage-controlled diffusion sheet when the voltage is turned off, resulting in side view A light source is emitted to provide a wide viewing angle display mode; the voltage controlled diffuser does not diffuse the original collimated light when the voltage is turned on to achieve a narrow viewing angle display mode. Ideally, it can perfectly avoid other people's peeping information, and the switching is convenient. However, in practice, because the optical path control is not easy, it is impossible to achieve complete collimated light. Although the distribution of the backlight at a large viewing angle can be reduced, the brightness of the large viewing angle cannot be completely reduced to the unrecognizable, so that a satisfactory effect cannot be obtained in the anti-peep performance.
三、外加視角控制模組：Third, plus the perspective control module:
在原本正常顯示的顯示模組(面板)上，再外加另一片視角控制模組(面板)，透過電壓控制視角控制模組的開關來切換廣視角顯示模式與窄視角顯示模式。此方法在廣視角顯示模式時，不會對原本的影像顯示造成任何干擾與破壞，能保有原本影像的品質。而在窄視角顯示模式時，側視的亮度會明顯的抑制，而使得側視的人不易判讀影像所顯示的訊息。但因為是由兩片模組所組成，整體重量及厚度皆增加一倍，相對上成本也大幅提高。On the display module (panel) that is normally displayed, another viewing angle control module (panel) is added, and the wide viewing angle display mode and the narrow viewing angle display mode are switched through the switch of the voltage control angle control module. This method does not cause any interference or damage to the original image display in the wide viewing angle display mode, and can preserve the quality of the original image. In the narrow viewing angle display mode, the brightness of the side view is significantly suppressed, making it difficult for the side view person to interpret the message displayed by the image. However, because it consists of two modules, the overall weight and thickness are doubled, and the relative cost is also greatly increased.
由此可知，現有顯示器的防窺技術在達到防窺效果的同時往往需要犧牲原有的部分特性，如顯示品質、光學特性、厚度及重量等，因此現有防窺技術仍具有改善空間。It can be seen that the anti-spying technology of the existing display often needs to sacrifice some of the original characteristics, such as display quality, optical characteristics, thickness and weight, while achieving the anti-spying effect, so the existing anti-spy technology still has room for improvement.
為解決習知技術的問題，本發明的一技術樣態是一種顯示面板，其主要是透過特殊的驅動方式以及畫素設計來改善顯示面板側視角的防窺效果。在廣視角顯示模式時統一以一組相對驅動電壓來驅動畫素的第一子畫素與第二子畫素，使其具有廣視角性質；在窄視角顯示模式時，面板至少會畫分為第一顯示區與第二顯示區，其中第一顯示區以一種正視亮度配比來驅動，例如：第一子畫素與第二子畫素採用10:0(第一子畫素110的正視亮度：第二子畫素120的正視亮度之正視亮度配比)，而第二顯示區以另一種正視亮度配比來驅動，例如：第一子畫素與第二子畫素採用8:2(第一子畫素110的正視亮度：第二子畫素120的正視亮度之正視亮度配比)。在此驅動方式下，可進一步設計於第一子畫素的第一主幹畫素電極下方以不透明連接線路進行遮光，或是設計使連接於第一子畫素的第一主幹畫素電極兩側的複數個第一分支畫素電極錯位設置，使得其與不具遮光或錯位設計的第二子畫素呈現明顯對比，進而可增加不同顯示區的亮度於側視時的差異，並可有效改善顯示面板側視角的防窺效果。In order to solve the problem of the prior art, a technical aspect of the present invention is a display panel, which mainly improves the anti-spying effect of the side view angle of the display panel through a special driving method and a pixel design. In the wide viewing angle display mode, the first sub-pixel and the second sub-pixel of the pixel are driven by a set of relative driving voltages to have a wide viewing angle property; in the narrow viewing angle display mode, the panel is at least divided into a first display area and a second display area, wherein the first display area is driven by a front view brightness ratio, for example, the first sub-pixel and the second sub-pixel adopt 10:0 (the front view of the first sub-pixel 110) Brightness: the front view brightness of the second sub-pixel 120 is proportional to the brightness ratio), and the second display area is driven by another front view brightness ratio, for example, the first sub-pixel and the second sub-pixel are 8:2. (The front view brightness of the first sub-pixel 110: the front view brightness ratio of the front view brightness of the second sub-pixel 120). In this driving mode, the first main pixel element of the first sub-pixel can be further designed to be shielded by an opaque connecting line, or designed to be connected to the first main pixel of the first sub-pixel. The plurality of first branch pixel electrodes are dislocated so that they are significantly contrasted with the second sub-pixel without the shading or misalignment design, thereby increasing the brightness of different display areas in side view, and effectively improving the display. The anti-spy effect of the side view of the panel.
根據本發明一實施方式，上述的顯示面板包含至少一第一顯示區以及至少一第二顯示區。第一顯示區與第二顯示區分別具有複數個畫素。每一畫素包含第一子畫素以及第二子畫素。第一子畫素包含第一主動元件、第一主幹畫素電極以及複數個第一分支畫素電極。第一主幹畫素電極電性連接於第一主動元件。第一分支畫素電極電性連接於第一主幹畫素電極。第一分支畫素電極係錯位設置於第一主幹畫素電極的兩側，並且定義出複數個方向不同之配向領域。第二子畫素毗鄰第一子畫素，並包含第二主動元件、第二主幹畫素電極以及複數個第二分支畫素電極。第二主幹畫素電極電性連接於第二主動元件。第二分支畫素電極電性連接於第二主幹畫素電極。第二分支畫素電極定義出複數個方向不同之配向領域。當顯示面板處於窄視角顯示模式並且第一顯示區與第二顯示區分別顯示一正視亮度時，第一顯示區內的第一子畫素的驅動電壓實質上大於第一顯示區內的第二子畫素以及第二顯示區內的第一子畫素與第二子畫素的驅動電壓，並且第一顯示區內的第二子畫素的驅動電壓實質上小於第一顯示區內的第一子畫素以及第二顯示區內的第一子畫素與第二子畫素的驅動電壓。According to an embodiment of the invention, the display panel comprises at least one first display area and at least one second display area. The first display area and the second display area respectively have a plurality of pixels. Each pixel contains a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first active element, a first trunk pixel electrode, and a plurality of first branch pixel electrodes. The first trunk pixel electrode is electrically connected to the first active component. The first branch pixel electrode is electrically connected to the first trunk pixel electrode. The first branch pixel electrode is misaligned on both sides of the first trunk pixel electrode, and defines a plurality of alignment fields with different directions. The second sub-pixel is adjacent to the first sub-pixel and includes a second active element, a second trunk pixel electrode, and a plurality of second branch pixel electrodes. The second trunk pixel electrode is electrically connected to the second active component. The second branch pixel electrode is electrically connected to the second trunk pixel electrode. The second branch pixel electrode defines a plurality of alignment fields with different directions. When the display panel is in the narrow viewing angle display mode and the first display area and the second display area respectively display a front view brightness, the driving voltage of the first sub-pixel in the first display area is substantially larger than the second display area a sub-pixel and a driving voltage of the first sub-pixel and the second sub-pixel in the second display area, and a driving voltage of the second sub-pixel in the first display area is substantially smaller than a first driving area a sub-pixel and a driving voltage of the first sub-pixel and the second sub-pixel in the second display area.
於本發明的一實施方式中，上述的第一主幹畫素電極包含不透明之導電層。In an embodiment of the invention, the first trunk pixel electrode includes an opaque conductive layer.
於本發明的一實施方式中，上述的第二主幹畫素電極包含另一不透明之導電層。In an embodiment of the invention, the second trunk pixel electrode includes another opaque conductive layer.
於本發明的一實施方式中，上述的第二子畫素更包含第二不透明連接線路。第二不透明連接線路至少部分重疊設置於第二主幹畫素電極下方，並且電性連接第二主動元件與第二主幹畫素電極。In an embodiment of the invention, the second sub-pixel further includes a second opaque connecting line. The second opaque connecting line is at least partially overlapped under the second trunk pixel and electrically connected to the second active element and the second trunk pixel.
於本發明的一實施方式中，上述的第二主動元件包含汲極。第二不透明連接線路連接於汲極，並且第二不透明連接線路與汲極係由同一金屬層所構成。In an embodiment of the invention, the second active component comprises a drain. The second opaque connecting line is connected to the drain, and the second opaque connecting line and the drain are composed of the same metal layer.
於本發明的一實施方式中，上述的第二分支畫素電極係錯位設置於第二主幹畫素電極的兩側。In an embodiment of the invention, the second branched pixel electrode is misaligned on both sides of the second trunk pixel.
於本發明的一實施方式中，上述的第一子畫素更包含第一不透明連接線路。第一不透明連接線路至少部分重疊設置於第一主幹畫素電極下方，並且電性連接第一主動元件與第一主幹畫素電極。In an embodiment of the invention, the first sub-pixel further includes a first opaque connecting line. The first opaque connecting line is at least partially overlapped under the first trunk pixel and electrically connected to the first active element and the first trunk pixel.
於本發明的一實施方式中，上述的第一主動元件包含汲極。第一不透明連接線路連接於汲極，並且第一不透明連接線路與汲極係由同一金屬層所構成。In an embodiment of the invention, the first active component comprises a drain. The first opaque connecting line is connected to the drain, and the first opaque connecting line and the drain are composed of the same metal layer.
於本發明的一實施方式中，上述的第一主幹畫素電極包含相互電性連接且交錯設置之第一主幹部與第二主幹部。第二主幹部將第一子畫素劃分為面積不相等的第一配向區以及第二配向區。In an embodiment of the invention, the first trunk pixel electrode includes a first trunk portion and a second trunk portion that are electrically connected to each other and are alternately arranged. The second trunk divides the first sub-pixel into a first alignment area and a second alignment area that are not equal in area.
於本發明的一實施方式中，上述的第一分支畫素電極係與至少第一主幹部以及第二主幹部其中之一錯位相接，並且形成銳角。In an embodiment of the invention, the first branching pixel electrode is misaligned with at least one of the first trunk portion and the second trunk portion, and forms an acute angle.
於本發明的一實施方式中，上述的每一第一子畫素的第一配向區與第二配向區的面積比值實質上大於或等於5。In an embodiment of the invention, the area ratio of the first alignment area to the second alignment area of each of the first sub-pixels is substantially greater than or equal to 5.
於本發明的一實施方式中，上述的第二主幹畫素電極包含相互電性連接且交錯設置之第三主幹部與第四主幹部。第四主幹部將第二子畫素劃分為面積不相等的第三配向區以及第四配向區。In an embodiment of the invention, the second trunk pixel electrode includes a third trunk portion and a fourth trunk portion that are electrically connected to each other and are alternately arranged. The fourth trunk unit divides the second sub-pixel into a third alignment area and an fourth alignment area that are not equal in area.
於本發明的一實施方式中，上述的每一第二子畫素的第三配向區與第四配向區的面積比值實質上大於或等於5。In an embodiment of the invention, the area ratio of the third alignment region to the fourth alignment region of each of the second sub-pixels is substantially greater than or equal to 5.
於本發明的一實施方式中，上述的第二分支畫素電極係對稱設置於第二主幹畫素電極的兩側。In an embodiment of the invention, the second branched pixel electrodes are symmetrically disposed on both sides of the second trunk pixel.
於本發明的一實施方式中，上述的每一畫素的該第一子畫素與該第二子畫素沿一垂直方向排列，並且每一畫素的該第一子畫素在一水平方向上係與相鄰畫素的該第二子畫素的交錯排列。In an embodiment of the invention, the first sub-pixel of each pixel and the second sub-pixel are arranged in a vertical direction, and the first sub-pixel of each pixel is at a level. The direction is a staggered arrangement of the second sub-pixels of adjacent pixels.
根據本發明另一實施方式，上述的顯示面板包含至少一第一顯示區以及至少一第二顯示區。第一顯示區以及第二顯示區分別具有複數個畫素。每一畫素包含第一子畫素以及第二子畫素。第一子畫素包含第一主動元件、第一不透明連接線路以及複數個第一分支畫素電極。第一不透明連接線路電性連接於第一主動元件。第一分支畫素電極電性連接於第一不透明連接線路。第一分支畫素電極定義出複數個方向不同之配向領域。第二子畫素毗鄰第一子畫素，並包含第二主動元件、第二主幹畫素電極以及複數個第二分支畫素電極。第二主幹畫素電極電性連接於第二主動元件。第二分支畫素電極電性連接於第二主幹畫素電極。第二分支畫素電極定義出複數個方向不同之配向領域。當顯示面板處於窄視角顯示模式並且第一顯示區與第二顯示區分別顯示一正視亮度時，第一顯示區內的第一子畫素的驅動電壓實質上大於第一顯示區內的第二子畫素以及第二顯示區內的第一子畫素與第二子畫素的驅動電壓，並且第一顯示區內的第二子畫素的驅動電壓實質上小於第一顯示區內的第一子畫素以及第二顯示區內的第一子畫素與第二子畫素的驅動電壓。According to another embodiment of the present invention, the display panel includes at least one first display area and at least one second display area. The first display area and the second display area respectively have a plurality of pixels. Each pixel contains a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first active component, a first opaque connection line, and a plurality of first branch pixel electrodes. The first opaque connecting line is electrically connected to the first active component. The first branch pixel electrode is electrically connected to the first opaque connecting line. The first branch pixel electrode defines a plurality of alignment fields that are different in direction. The second sub-pixel is adjacent to the first sub-pixel and includes a second active element, a second trunk pixel electrode, and a plurality of second branch pixel electrodes. The second trunk pixel electrode is electrically connected to the second active component. The second branch pixel electrode is electrically connected to the second trunk pixel electrode. The second branch pixel electrode defines a plurality of alignment fields with different directions. When the display panel is in the narrow viewing angle display mode and the first display area and the second display area respectively display a front view brightness, the driving voltage of the first sub-pixel in the first display area is substantially larger than the second display area a sub-pixel and a driving voltage of the first sub-pixel and the second sub-pixel in the second display area, and a driving voltage of the second sub-pixel in the first display area is substantially smaller than a first driving area a sub-pixel and a driving voltage of the first sub-pixel and the second sub-pixel in the second display area.
於本發明的一實施方式中，上述的第一子畫素更包含第一主幹畫素電極。第一主幹畫素電極與第一不透明連接線路重疊設置，並且電性連接第一主動元件與第一分支畫素電極。In an embodiment of the invention, the first sub-pixel further includes a first trunk pixel electrode. The first trunk pixel electrode is disposed to overlap with the first opaque connecting line, and electrically connects the first active component and the first branching pixel electrode.
以下將以圖式揭露本發明的複數個實施方式，為明確說明起見，許多實務上的細節將在以下敘述中一併說明。然而，應瞭解到，這些實務上的細節不應用以限制本發明。也就是說，在本發明部分實施方式中，這些實務上的細節是非必要的。此外，為簡化圖式起見，一些習知慣用的結構與元件在圖式中將以簡單示意的方式繪示。The embodiments of the present invention are disclosed in the following drawings, and for the purpose of clarity However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic representation.
第一實施方式First embodiment
第1圖繪示依照本發明第一實施方式之顯示面板於廣視角顯示模式下的示意圖。第2圖繪示第1圖之顯示面板於窄視角顯示模式下的示意圖。如第1圖所示，本實施方式之顯示面板包含第一顯示區D1(亦即，第1圖之右上顯示區與左下顯示區)以及第二顯示區D2(亦即，第1圖之左上顯示區與右下顯示區)。第一顯示區D1與第二顯示區D2分別具有複數個畫素100。每一畫素100皆包含第一子畫素110以及第二子畫素120。第二子畫素120毗鄰第一子畫素110。當然，於實際應用中，顯示面板的第一顯示區D1與第二顯示區D2的佈局(layout)並不以第1圖與第2圖所繪示者為限。FIG. 1 is a schematic view showing a display panel according to a first embodiment of the present invention in a wide viewing angle display mode. FIG. 2 is a schematic view showing the display panel of FIG. 1 in a narrow viewing angle display mode. As shown in FIG. 1, the display panel of the present embodiment includes a first display area D1 (ie, an upper right display area and a lower left display area of FIG. 1) and a second display area D2 (ie, the upper left of the first figure). Display area and lower right display area). The first display area D1 and the second display area D2 respectively have a plurality of pixels 100. Each pixel 100 includes a first sub-pixel 110 and a second sub-pixel 120. The second sub-pixel 120 is adjacent to the first sub-pixel 110. Of course, in practical applications, the layout of the first display area D1 and the second display area D2 of the display panel is not limited to those shown in FIG. 1 and FIG. 2 .
第3圖繪示第1圖之畫素100的俯視圖。如第3圖所示，上述之第一子畫素110包含第一主動元件111、第一主幹畫素電極112以及複數個第一分支畫素電極113。第一主幹畫素電極112電性連接於第一主動元件111。第一分支畫素電極113電性連接於第一主幹畫素電極112且係錯位設置於第一主幹畫素電極112的兩側，即第一分支畫素電極113不是鏡像對稱地設置於第一主幹畫素電極112的兩側。此外，第一分支畫素電極113定義出複數個方向不同之配向領域。Fig. 3 is a plan view showing the pixel 100 of Fig. 1. As shown in FIG. 3, the first sub-pixel 110 includes a first active device 111, a first trunk pixel 112, and a plurality of first branch pixel electrodes 113. The first trunk pixel 112 is electrically connected to the first active component 111. The first branch pixel electrode 113 is electrically connected to the first trunk pixel 112 and is disposed on both sides of the first trunk pixel 112, that is, the first branch pixel electrode 113 is not mirror-symmetrically disposed on the first The main pixels are on both sides of the electrode 112. Further, the first branch pixel electrode 113 defines a plurality of alignment fields having different directions.
相對地，第二子畫素120同樣可包含第二主動元件121、第二主幹畫素電極122以及複數個第二分支畫素電極123。第二主幹畫素電極122電性連接於第二主動元件121。第二分支畫素電極123電性連接於第二主幹畫素電極122。第二分支畫素電極123同樣定義出複數個方向不同之配向領域，但本實施方式之第二分支畫素電極123對稱設置於第二主幹畫素電極122的兩側。In contrast, the second sub-pixel 120 may also include a second active component 121, a second trunk pixel electrode 122, and a plurality of second branch pixel electrodes 123. The second trunk pixel electrode 122 is electrically connected to the second active component 121. The second branch pixel electrode 123 is electrically connected to the second trunk pixel electrode 122. The second branch pixel electrode 123 also defines a plurality of alignment domains having different directions. However, the second branch pixel electrodes 123 of the present embodiment are symmetrically disposed on both sides of the second trunk pixel 122.
在相同的驅動電壓下，上述之第一分支畫素電極113因為錯位設置於第一主幹畫素電極112的兩側，因此液晶分子的分佈會較為均勻，並往第一主幹畫素電極112集中，使得側視時第一子畫素110的漏光量較低，亮度也因而降低。相對地，第二分支畫素電極123因為沒有錯位設置於第二主幹畫素電極122的兩側，因此靠近第二主幹畫素電極122之液晶分子的分佈會較為散亂，使得側視時第二子畫素120的漏光量較高，亮度也因而較高。簡言之，若以相同的驅動電壓驅動第一子畫素110與第二子畫素120，第一子畫素110的側視亮度會較第二子畫素120的側視亮度低。At the same driving voltage, the first branched pixel electrode 113 is disposed on both sides of the first trunk pixel 112 due to the misalignment, so that the distribution of the liquid crystal molecules is relatively uniform and concentrated toward the first trunk pixel 112. Therefore, the amount of light leakage of the first sub-pixel 110 in the side view is low, and the brightness is also lowered. In contrast, since the second branched pixel electrode 123 is disposed on both sides of the second trunk pixel 122 without being misaligned, the distribution of the liquid crystal molecules near the second trunk pixel 122 is relatively scattered, so that the side view is The second sub-pixel 120 has a higher light leakage amount and a higher brightness. In short, if the first sub-pixel 110 and the second sub-pixel 120 are driven by the same driving voltage, the side view brightness of the first sub-pixel 110 is lower than the side view brightness of the second sub-pixel 120.
回到第1圖，當顯示面板處於寬視角顯示模式時，第一顯示區D1與第二顯示區D2內之各畫素100的第一子畫素110與第二子畫素120將均以相同的驅動電壓進行驅動，使得各畫素100的第一子畫素110與第二子畫素120具有大致相同的正視亮度。Returning to FIG. 1 , when the display panel is in the wide viewing angle display mode, the first sub-pixel 110 and the second sub-pixel 120 of each pixel 100 in the first display area D1 and the second display area D2 will be The same driving voltage is driven such that the first sub-pixel 110 of each pixel 100 and the second sub-pixel 120 have substantially the same frontal brightness.
回到第2圖，當顯示面板處於窄視角顯示模式並且第一顯示區D1與第二顯示區D2分別顯示一正視亮度時，第一顯示區D1內之第一子畫素110的驅動電壓實質上大於第一顯示區D1內的第二子畫素120以及第二顯示區D2內的第一子畫素110與第二子畫素120的驅動電壓，並且第一顯示區D1內的第二子畫素120的驅動電壓實質上小於第一顯示區D1內的第一子畫素110以及第二顯示區D2內的第一子畫素110與第二子畫素120的驅動電壓。Returning to FIG. 2, when the display panel is in the narrow viewing angle display mode and the first display area D1 and the second display area D2 respectively display a front view brightness, the driving voltage of the first sub-pixel 110 in the first display area D1 is substantially The driving voltage of the first sub-pixel 110 and the second sub-pixel 120 in the second sub-pixel 120 and the second display area D2 in the first display area D1 is greater than the second, and the second in the first display area D1 The driving voltage of the sub-pixel 120 is substantially smaller than the driving voltages of the first sub-pixel 110 and the second sub-pixel 120 in the first sub-pixel 110 and the second display area D2 in the first display area D1.
如第2圖所示，當顯示面板處於窄視角顯示模式時，第一顯示區D1內的第一子畫素110的正視亮度會最亮(以全白表示)，第一顯示區D1內的第二子畫素120的正視亮度會最暗(以全黑表示)，而第二顯示區D2內的第一子畫素110與第二子畫素120的正視亮度會介於最亮與最暗之間。此外，在本實施方式中，第二顯示區D2內的第一子畫素110的驅動電壓可實質上大於第二顯示區D2內的第二子畫素120的驅動電壓，使得第二顯示區D2內的第一子畫素110的正視亮度實質上大於第二顯示區D2內的第二子畫素120的正視亮度。換言之，當顯示面板處於窄視角顯示模式時，雖然第一顯示區D1內的第二子畫素120會具有最小的正視亮度，但由於第一顯示區D1內的第一子畫素110會具有最大的正視亮度，因此會讓第一顯示區D1的整體正視亮度與第二顯示區D2的整體正視亮度大致相同，而不會影響顯示面板正視時的影像。As shown in FIG. 2, when the display panel is in the narrow viewing angle display mode, the front sub-pixel 110 in the first display area D1 has the brightest front view brightness (indicated by all white), and the first display area D1 The front view brightness of the second sub-pixel 120 is the darkest (indicated by all black), and the front sub-pixel 110 and the second sub-pixel 120 in the second display area D2 are the brightest and most Between the dark. In addition, in this embodiment, the driving voltage of the first sub-pixel 110 in the second display area D2 may be substantially larger than the driving voltage of the second sub-pixel 120 in the second display area D2, so that the second display area The front view brightness of the first sub-pixel 110 in D2 is substantially greater than the front view brightness of the second sub-pixel 120 in the second display area D2. In other words, when the display panel is in the narrow viewing angle display mode, although the second sub-pixel 120 in the first display area D1 will have the smallest front view brightness, since the first sub-pixel 110 in the first display area D1 will have The maximum front view brightness, so that the overall front view brightness of the first display area D1 is substantially the same as the overall front view brightness of the second display area D2, without affecting the image when the display panel is facing up.
在實務上，當顯示面板處於窄視角顯示模式時，第一顯示區D1內的第一子畫素110與第二子畫素120的正視亮度配比可為10:0(第一子畫素110的正視亮度：第二子畫素120的正視亮度)，且第二顯示區D2內的第一子畫素110與第二子畫素120的正視亮度配比可為8:2(第一子畫素110的正視亮度：第二子畫素120的正視亮度)，但並不以此為限，本發明所屬技術領域中具有通常知識者，亦可視實際情況調整。In practice, when the display panel is in the narrow viewing angle display mode, the ratio of the front view brightness of the first sub-pixel 110 and the second sub-pixel 120 in the first display area D1 may be 10:0 (the first sub-pixel The front view brightness of the first sub-pixel 120 in the second display area D2 and the front view brightness ratio of the second sub-pixel 120 may be 8:2 (first The front view brightness of the sub-pixel 110: the front view brightness of the second sub-pixel 120), but not limited thereto, may be adjusted by the general knowledge in the technical field of the present invention.
在側視時，對於第一顯示區D1而言，第一子畫素110因為第一分支畫素電極113有錯位設置的關係，因此第一子畫素110的側視亮度會下降，而第二子畫素120因為驅動電壓低，因此側視亮度也會比較低，綜合起來第一顯示區D1的整體側視亮度就會偏暗。相對地，對於第二顯示區D2而言，雖然第一子畫素110之第一分支畫素電極113有錯位設置的設計，但因為第二子畫素120之第二分支畫素電極123沒有錯位設置的設計，因此第二子畫素120還是能夠提供足夠的側視亮度，讓第二顯示區D2的整體側視亮度偏亮。一旦第一顯示區D1之整體側視亮度與第二顯示區D2之整體側視亮度的反差擴大，在側視時第一顯示區D1與第二顯示區D2就會構成亮暗反差的干擾圖案，使得顯示面板具有防窺的效果。In the side view, for the first display area D1, the first sub-pixel 110 has a misalignment relationship of the first sub-pixels 113, so the side view brightness of the first sub-pixel 110 is decreased, and Since the second sub-pixel 120 has a low driving voltage, the side view brightness is also relatively low, and the overall side view brightness of the first display area D1 is combined to be dark. In contrast, for the second display area D2, although the first sub-pixel element 113 of the first sub-pixel 110 has a misplaced design, since the second sub-pixel element 123 of the second sub-pixel 120 does not have The design of the misalignment setting, so that the second sub-pixel 120 can still provide sufficient side view brightness, so that the overall side view brightness of the second display area D2 is bright. Once the contrast between the overall side view brightness of the first display area D1 and the overall side view brightness of the second display area D2 is expanded, the first display area D1 and the second display area D2 form a contrast pattern of bright and dark contrast in side view. The display panel has an anti-peep effect.
另外，如第2圖所示，在本實施方式中，第一顯示區D1與第二顯示區D2內之每一畫素100的第一子畫素110與第二子畫素120均沿垂直方向V排列。並且，每一畫素100的第一子畫素110在水平方向H上係與相鄰畫素100的第二子畫素120的交錯排列。亦即，在水平方向H上的任兩相鄰畫素100的第一子畫素110與第二子畫素120的排列順序相反，但不以此為限。本實施方式之這種設計是為了避免在顯示面板處於窄視角顯示模式時，正視亮度較暗的第二子畫素120沿水平方向H排列成一直線，使得使用者在正視時感覺顯示面板有暗線存在。In addition, as shown in FIG. 2, in the present embodiment, the first sub-pixel 110 and the second sub-pixel 120 of each pixel 100 in the first display area D1 and the second display area D2 are perpendicular to each other. Direction V is arranged. Moreover, the first sub-pixel 110 of each pixel 100 is interlaced with the second sub-pixel 120 of the adjacent pixel 100 in the horizontal direction H. That is, the arrangement order of the first sub-pixels 110 and the second sub-pixels 120 of any two adjacent pixels 100 in the horizontal direction H is reversed, but not limited thereto. The design of the embodiment is to avoid that when the display panel is in the narrow viewing angle display mode, the second sub-pixel 120 whose brightness is dark is arranged in a line in the horizontal direction H, so that the user feels that the display panel has a dark line when facing the front view. presence.
第11圖繪示沿第3圖之線段III的剖面圖。如第3及11圖所示，第一子畫素110除了第一分支畫素電極113有錯位設置的設計外，第一子畫素110更包括一第一不透明連接線路115。此第一不透明連接線路115至少部分重疊設置於第一主幹畫素電極112下方，並且電性連接第一主動元件111與第一主幹畫素電極112。這種設計是因為第一主幹畫素電極112附近之液晶分子的分布比較不均勻，因此第一子畫素110容易在側視時漏光，而第一不透明連接線路115的設計恰可遮蔽這部份的漏光，讓第一子畫素110的側視亮度更進一步地降低，以擴大側視時第一顯示區D1與第二顯示區D2的亮暗反差。Figure 11 is a cross-sectional view along line III of Figure 3. As shown in FIGS. 3 and 11, the first sub-pixel 110 further includes a first opaque connection line 115 in addition to the design of the first branch pixel electrode 113 having a misalignment. The first opaque connecting line 115 is disposed at least partially under the first trunk pixel 112 and electrically connected to the first active element 111 and the first trunk pixel 112. This design is because the distribution of liquid crystal molecules in the vicinity of the first trunk pixel 112 is relatively uneven, so that the first sub-pixel 110 is easy to leak light in side view, and the design of the first opaque connecting line 115 can shield this portion. The light leakage causes the side view brightness of the first sub-pixel 110 to be further lowered to expand the contrast between the first display area D1 and the second display area D2 in the side view.
第12圖繪示本發明另一變化實施方式之第一子畫素110的剖面圖，其剖面位置與第11圖相同。第一子畫素110除了第一分支畫素電極113有錯位設置的設計外，其第一主幹畫素電極112可包含一不透明之導電層112c。同樣地，這種設計可以遮蔽因第一主幹畫素電極112附近之液晶分子的分布比較不均勻，而在側視時產生的漏光，讓第一子畫素110的側視亮度更進一步地降低，以擴大側視時第一顯示區D1與第二顯示區D2的亮暗反差。Fig. 12 is a cross-sectional view showing a first sub-pixel 110 according to another variation of the present invention, the cross-sectional position of which is the same as that of Fig. 11. The first sub-pixel 110 may include an opaque conductive layer 112c in addition to the first branch pixel electrode 113 having a misaligned design. Similarly, this design can shield the light leakage generated in the side view due to the relatively uneven distribution of the liquid crystal molecules in the vicinity of the first main pixel electrode 112, and further reduce the side view brightness of the first sub-pixel 110. To increase the contrast between the first display area D1 and the second display area D2 in the side view.
第4圖繪示沿第3圖之線段I及線段II之剖面圖。在第4圖中，I-I區域繪示沿第3圖之線段I的剖面，II-II區域則繪示沿第3圖之線段II的剖面。如第4圖所示，第一主動元件111可包含閘極111a、閘介電層111b、通道區111c、源極歐姆接觸層111d、汲極歐姆接觸層111e、源極111f與汲極111g。閘極111a位於基板101上，並電性連接掃描線104(繪示於第3圖)。閘介電層111b覆蓋閘極111a。通道區111c位於閘介電層111b上，並位於閘極111a上方。源極歐姆接觸層111d與汲極歐姆接觸層111e分別位於通道區111c的兩側。源極111f與汲極111g分別位於源極歐姆接觸層111d與汲極歐姆接觸層111e上，且源極111f電性連接資料線102(繪示於第3圖)。Figure 4 is a cross-sectional view along line I and line II of Figure 3. In Fig. 4, the I-I region shows the section along the line I of Fig. 3, and the II-II area shows the section along the line II of Fig. 3. As shown in FIG. 4, the first active device 111 may include a gate 111a, a gate dielectric layer 111b, a channel region 111c, a source ohmic contact layer 111d, a drain ohmic contact layer 111e, a source electrode 111f, and a drain electrode 111g. The gate 111a is located on the substrate 101 and electrically connected to the scan line 104 (shown in FIG. 3). The gate dielectric layer 111b covers the gate 111a. The channel region 111c is located on the gate dielectric layer 111b and above the gate 111a. The source ohmic contact layer 111d and the drain ohmic contact layer 111e are respectively located on both sides of the channel region 111c. The source 111f and the drain 111g are respectively located on the source ohmic contact layer 111d and the drain ohmic contact layer 111e, and the source 111f is electrically connected to the data line 102 (shown in FIG. 3).
在第4圖中，第一子畫素110尚可包含第一電容114。此第一電容114包含下電極114a、介電層114b與上電極114c。下電極114a位於位於基板101上，並電性連接公共電位線106(繪示於第3圖)。介電層114b覆蓋下電極114a。上電極114c位於介電層114b上。In FIG. 4, the first sub-pixel 110 may further include a first capacitor 114. The first capacitor 114 includes a lower electrode 114a, a dielectric layer 114b, and an upper electrode 114c. The lower electrode 114a is located on the substrate 101 and electrically connected to the common potential line 106 (shown in FIG. 3). The dielectric layer 114b covers the lower electrode 114a. The upper electrode 114c is located on the dielectric layer 114b.
此外，第一子畫素110尚可包含一保護層116，此保護層116全面覆蓋第一主動元件111與第一電容114，且上述之第一主幹畫素電極112與第一分支畫素電極113(繪示於第3圖)均位於保護層116上。第4圖之保護層116具有一通孔116a，此通孔116a暴露出上電極114c，使得第一主幹畫素電極112及/或第一分支畫素電極113(繪示於第3圖)透過通孔116a而與第一主動元件111電性連接。In addition, the first sub-pixel 110 may further include a protective layer 116 covering the first active device 111 and the first capacitor 114, and the first trunk pixel 112 and the first branch pixel electrode. 113 (shown in Figure 3) are all located on the protective layer 116. The protective layer 116 of FIG. 4 has a through hole 116a, and the through hole 116a exposes the upper electrode 114c, so that the first trunk pixel electrode 112 and/or the first branch pixel electrode 113 (shown in FIG. 3) pass through. The hole 116a is electrically connected to the first active element 111.
由第4圖可以看出來，上述之第一不透明連接線路115實際上可電性連接汲極111g與上電極114c，並進而與第一主幹畫素電極112及/或第一分支畫素電極113電性連接。實務上，上述之第一不透明連接線路115可與汲極111g及/或上電極114c由同一金屬層所構成。As can be seen from FIG. 4, the first opaque connecting line 115 can be electrically connected to the drain 111g and the upper electrode 114c, and further to the first trunk pixel 112 and/or the first branch pixel electrode 113. Electrical connection. In practice, the first opaque connecting line 115 described above may be formed of the same metal layer as the drain 111g and/or the upper electrode 114c.
回到第3圖，在本實施方式中，第一子畫素110的第一主幹畫素電極112包含相互電性連接且交錯設置之第一主幹部112a與第二主幹部112b。第一主幹畫素電極112的第一主幹部112a係垂直設置，而第二主幹部112b係水平設置。第一主幹畫素電極112的第二主幹部112b將第一子畫素110劃分為面積不相等的第一配向區F1(亦即，第一子畫素110的下部)以及第二配向區F2(亦即，第一子畫素110的上部)。並且，每一第一子畫素110的第一配向區F1與第二配向區F2的面積比值實質上大於或等於5，然並不以此為限，本發明所屬技術領域中具有通常知識者，亦可視實際情況調整。Returning to FIG. 3, in the present embodiment, the first trunk pixel electrode 112 of the first sub-pixel 110 includes a first trunk portion 112a and a second trunk portion 112b that are electrically connected to each other and are alternately arranged. The first trunk portion 112a of the first trunk pixel 112 is vertically disposed, and the second trunk portion 112b is horizontally disposed. The second trunk portion 112b of the first trunk pixel 112 divides the first sub-pixel 110 into a first alignment region F1 having an unequal area (that is, a lower portion of the first sub-pixel 110) and a second alignment region F2. (ie, the upper portion of the first sub-pixel 110). Moreover, the area ratio of the first alignment area F1 and the second alignment area F2 of each first sub-pixel 110 is substantially greater than or equal to 5, and is not limited thereto, and is generally known in the technical field of the present invention. It can also be adjusted according to actual conditions.
另外，第一分支畫素電極113可與至少第一主幹部112a和第二主幹部112b其中之一錯位相接，並且形成一銳角。亦即，雖然第3圖將第一子畫素110的第一分支畫素電極113繪示為錯位設置於第一主幹部112a的兩側，並對稱設置於第二主幹部112b的兩側，但並不以此為限。於實際應用中，第一子畫素110的第一分支畫素電極113亦可錯位設置於第二主幹部112b的兩側，但對稱設置於第一主幹部112a的兩側。抑或，第一子畫素110的第一分支畫素電極113亦可同時錯位設置於第一主幹部112a與第二主幹部112b的兩側。In addition, the first branch pixel electrode 113 may be misaligned with at least one of the first trunk portion 112a and the second trunk portion 112b, and form an acute angle. That is, although the first sub-pixel element 113 of the first sub-pixel 110 is shown as being misaligned on both sides of the first trunk portion 112a and symmetrically disposed on both sides of the second trunk portion 112b, But it is not limited to this. In a practical application, the first sub-pixel electrodes 113 of the first sub-pixel 110 may also be dislocated on both sides of the second trunk portion 112b, but symmetrically disposed on both sides of the first trunk portion 112a. Alternatively, the first sub-pixel electrodes 113 of the first sub-pixel 110 may be misaligned at both sides of the first trunk portion 112a and the second trunk portion 112b.
此外，雖然第3圖將第一不透明連接線路115繪示為至少部分重疊設置於第一主幹畫素電極112之第一主幹部112a下方，但此並不限制本發明，實際上第一不透明連接線路115除了部分重疊設置於第一主幹畫素電極112之第一主幹部112a下方外，還可以延伸以至少部分重疊設置第一主幹畫素電極112之第二主幹部112b下方，本發明所屬技術領域中具有通常知識者，應是實際需要彈性選擇第一不透明連接線路115的實施方式。In addition, although FIG. 3 illustrates the first opaque connecting line 115 as being at least partially overlapped under the first trunk portion 112a of the first trunk pixel 112, this does not limit the present invention, and actually the first opaque connection The line 115 may be disposed to overlap under the first trunk portion 112b of the first trunk pixel 112 at least partially overlapping, at least partially overlapping the first trunk portion 112b of the first trunk pixel 112. Those of ordinary skill in the art should be embodiments that actually require the flexibility to select the first opaque connection line 115.
同樣示於第3圖，於本實施方式中，第二子畫素120的第二主幹畫素電極122包含相互電性連接且交錯設置之第三主幹部122a與第四主幹部122b。第二主幹畫素電極122的第四主幹部122b將第二子畫素120劃分為面積不相等的第三配向區S1(亦即，第二子畫素120的上部)以及第四配向區S2(亦即，第二子畫素120的下部)。並且，每一第二子畫素120的第三配向區S1與第四配向區S2的面積比值實質上大於或等於5，然並不以此為限，本發明所屬技術領域中具有通常知識者，亦可視實際情況調整。Also shown in FIG. 3, in the present embodiment, the second trunk pixel electrode 122 of the second sub-pixel 120 includes a third trunk portion 122a and a fourth trunk portion 122b that are electrically connected to each other and are alternately arranged. The fourth trunk portion 122b of the second trunk pixel electrode 122 divides the second sub-pixel 120 into a third alignment region S1 having an unequal area (that is, an upper portion of the second sub-pixel 120) and a fourth alignment region S2. (ie, the lower portion of the second sub-pixel 120). Moreover, the area ratio of the third alignment area S1 and the fourth alignment area S2 of each second sub-pixel 120 is substantially greater than or equal to 5, which is not limited thereto, and is generally known in the technical field of the present invention. It can also be adjusted according to actual conditions.
並且，於本實施方式中，第二子畫素120的第二分支畫素電極123係對稱設置於第二主幹畫素電極122的第三主幹部122a與第四主幹部122b的兩側。亦即，本實施方式之第二分支畫素電極123並沒有錯位設置的設計。Further, in the present embodiment, the second sub-pixel electrodes 123 of the second sub-pixel 120 are symmetrically disposed on both sides of the third trunk portion 122a and the fourth trunk portion 122b of the second trunk pixel electrode 122. That is, the second sub-pixel element 123 of the present embodiment is not designed to be misaligned.
在本實施方式中，顯示面板可為高分子穩定配向(Polymer-Stabilized Alignment；PSA)顯示面板，但並不限於此，實際上顯示面板也可以是垂直配向(Vertical Alignment；VA)顯示面板、紫外線誘發多區域垂直配向(Ultraviolet Induced Multi-Domain Vertical Alignment；UV2A)顯示面板...等。In this embodiment, the display panel may be a Polymer-Stabilized Alignment (PSA) display panel, but the display panel is not limited thereto. Actually, the display panel may be a Vertical Alignment (VA) display panel or an ultraviolet ray. An Ultraviolet Induced Multi-Domain Vertical Alignment (UV2A) display panel...etc.
第二實施方式Second embodiment
第5圖繪示依照本發明第二實施方式之畫素100的俯視圖。本實施方式與第一實施方式的差異在於：在本實施方式中，只有在第一子畫素110之第一分支畫素電極113有錯位設置的設計。Figure 5 is a plan view of a pixel 100 in accordance with a second embodiment of the present invention. The difference between this embodiment and the first embodiment is that in the present embodiment, only the first sub-pixel element 113 of the first sub-pixel 110 has a design in which the dislocation is set.
至於其他相關的結構、驅動方式與操作細節，均與第一實施方式相同，因此不再重複贅述之。Other related structures, driving methods, and operation details are the same as those of the first embodiment, and thus the description thereof will not be repeated.
第三實施方式Third embodiment
第6圖繪示依照本發明第三實施方式之畫素100的俯視圖。本實施方式與第一實施方式的差異在於：在本實施方式中，第一子畫素110之第一分支畫素電極113對稱設置於第一主幹畫素電極112的兩側。亦即，本實施方式之第一分支畫素電極113並沒有錯位設置的設計，而只有在第一主幹畫素電極112下方至少部分重疊設置第一不透明連接線路115。Figure 6 is a plan view of a pixel 100 in accordance with a third embodiment of the present invention. The difference between the present embodiment and the first embodiment is that, in the present embodiment, the first sub-pixel electrodes 113 of the first sub-pixel 110 are symmetrically disposed on both sides of the first trunk pixel 112. That is, the first sub-pixel electrodes 113 of the present embodiment are not provided with a dislocation setting, and only the first opaque connection line 115 is disposed at least partially under the first main-pixel element 112.
至於其他相關的結構、驅動方式與操作細節，均與第一實施方式相同，因此不再重複贅述之。Other related structures, driving methods, and operation details are the same as those of the first embodiment, and thus the description thereof will not be repeated.
第四實施方式Fourth embodiment
第7圖繪示依照本發明第四實施方式之畫素100的俯視圖。本實施方式與第一實施方式的差異在於：在本實施方式中，第二子畫素120也包含一第二不透明連接線路125。此第二不透明連接線路125至少部分重疊設置於第二主幹畫素電極122下方，並且電性連接第二主動元件121與第二主幹畫素電極122。Figure 7 is a plan view of a pixel 100 in accordance with a fourth embodiment of the present invention. The difference between this embodiment and the first embodiment is that in the present embodiment, the second sub-pixel 120 also includes a second opaque connection line 125. The second opaque connecting line 125 is at least partially disposed under the second trunk pixel 122 and electrically connected to the second active element 121 and the second trunk pixel 122.
更具體地說，上述之第二主動元件121具有汲極121g。上述之第二不透明連接線路125連接於第二主動元件121之汲極121g，並且此第二不透明連接線路125與第二主動元件121之汲極121g可由同一金屬層所構成。More specifically, the second active element 121 described above has a drain 121g. The second opaque connecting line 125 is connected to the drain 121g of the second active component 121, and the second opaque connecting line 125 and the drain 121g of the second active component 121 can be formed by the same metal layer.
此外，上述之第二子畫素120也具有第二電容124，且此第二電容124也具有上電極124c。上述之第二主幹畫素電極122可透過通孔126a連接於第二電容124之上電極124c。此外，第二不透明連接線路125可與第二電容124之上電極124c由同一金屬層所構成。In addition, the second sub-pixel 120 described above also has a second capacitor 124, and the second capacitor 124 also has an upper electrode 124c. The second trunk pixel electrode 122 can be connected to the upper electrode 124c of the second capacitor 124 through the through hole 126a. In addition, the second opaque connecting line 125 may be formed of the same metal layer as the upper electrode 124c of the second capacitor 124.
第二不透明連接線路125的設置同樣也可以讓第二子畫素120的側視亮度降低，但由於第一子畫素110同時具有錯位設置的第一分支畫素電極113以及第一不透明連接線路115，因此若以相同的驅動電壓驅動第一子畫素110與第二子畫素120，第二子畫素120的側視亮度還是會較第一子畫素110的側視亮度亮。如此一來，當顯示面板處於窄視角顯示模式時，第二顯示區D2內的第二子畫素120還是能夠提供足夠的側視亮度，讓第二顯示區D2的整體側視亮度維持在一定的水準，以維持第一顯示區D1與第二顯示區D2的亮暗反差The arrangement of the second opaque connecting line 125 can also reduce the side view brightness of the second sub-pixel 120, but the first sub-pixel 110 has the first branching pixel electrode 113 and the first opaque connecting line. 115. Therefore, if the first sub-pixel 110 and the second sub-pixel 120 are driven by the same driving voltage, the side view brightness of the second sub-pixel 120 is still brighter than the side view brightness of the first sub-pixel 110. In this way, when the display panel is in the narrow viewing angle display mode, the second sub-pixel 120 in the second display area D2 can still provide sufficient side view brightness, so that the overall side view brightness of the second display area D2 is maintained at a certain level. Level to maintain the contrast between the first display area D1 and the second display area D2
此外，雖然第7圖將第二不透明連接線路125繪示為至少部分重疊設置於第二主幹畫素電極122之第三主幹部122a下方，但此並不限制本發明，實際上第二不透明連接線路125除了部分重疊設置於第二主幹畫素電極122之第三主幹部122a下方外，還可以延伸以至少部分重疊設置第二主幹畫素電極122之第四主幹部122b下方，本發明所屬技術領域中具有通常知識者，應是實際需要彈性選擇第二不透明連接線路125的實施方式。In addition, although FIG. 7 illustrates the second opaque connecting line 125 as being at least partially overlapped under the third trunk portion 122a of the second trunk pixel electrode 122, this does not limit the present invention, and actually the second opaque connection The line 125 may be disposed to be disposed under the third trunk portion 122a of the second trunk pixel 122 in a partially overlapping manner, and may extend to at least partially overlap the fourth trunk portion 122b of the second trunk pixel electrode 122. Those of ordinary skill in the art should be embodiments that actually require the flexibility to select the second opaque connection line 125.
另外，雖然第7圖係以第二不透明連接線路125來降低第二子畫素120的側視亮度，但此並不限制本發明。在本發明另一變化實施方式中，第二主幹畫素電極亦可包含不透明之導電層，並藉此降低第二子畫素的側視亮度。此不透明之導電層的結構與第12圖所繪示的實施方式相同，僅位置是位於第二子畫素中，因此不再重複贅述之。In addition, although FIG. 7 reduces the side view brightness of the second sub-pixel 120 with the second opaque connecting line 125, this does not limit the present invention. In another variant embodiment of the invention, the second trunk pixel electrode may also comprise an opaque conductive layer and thereby reduce the side view brightness of the second sub-pixel. The structure of the opaque conductive layer is the same as that of the embodiment shown in FIG. 12, and only the position is located in the second sub-pixel, and thus the description thereof will not be repeated.
至於其他相關的結構、驅動方式與操作細節，均與第一實施方式相同，因此不再重複贅述之。Other related structures, driving methods, and operation details are the same as those of the first embodiment, and thus the description thereof will not be repeated.
第五實施方式Fifth embodiment
第8圖繪示依照本發明第四實施方式之畫素100的俯視圖。本實施方式與第一實施方式的差異在於：在本實施方式中，第二分支畫素電極123係錯位設置於第二主幹畫素電極122的兩側。Figure 8 is a plan view of a pixel 100 in accordance with a fourth embodiment of the present invention. The difference between the present embodiment and the first embodiment is that, in the present embodiment, the second branched pixel electrodes 123 are misaligned on both sides of the second trunk pixel electrode 122.
這種錯位設置的第二分支畫素電極123同樣也可以讓第二子畫素120的側視亮度降低，但由於第一子畫素110同時具有錯位設置的第一分支畫素電極113以及第一不透明連接線路115，因此若以相同的驅動電壓驅動第一子畫素110與第二子畫素120，第二子畫素120的側視亮度還是會較第一子畫素110的側視亮度亮。如此一來，當顯示面板處於窄視角顯示模式時，第二顯示區D2內的第二子畫素120還是能夠提供足夠的側視亮度，讓第二顯示區D2的整體側視亮度維持在一定的水準，以維持第一顯示區D1與第二顯示區D2的亮暗反差。The second branch pixel electrode 123 of the misalignment arrangement can also reduce the side view brightness of the second sub-pixel 120, but the first sub-pixel 110 has the first branch pixel electrode 113 and the first An opaque connection line 115, so if the first sub-pixel 110 and the second sub-pixel 120 are driven by the same driving voltage, the side view brightness of the second sub-pixel 120 is still higher than that of the first sub-pixel 110. The brightness is bright. In this way, when the display panel is in the narrow viewing angle display mode, the second sub-pixel 120 in the second display area D2 can still provide sufficient side view brightness, so that the overall side view brightness of the second display area D2 is maintained at a certain level. The level of light to maintain the contrast between the first display area D1 and the second display area D2.
另外，雖然第8圖將第二子畫素120的第二分支畫素電極123繪示為錯位設置於第三主幹部122a的兩側，並對稱設置於第四主幹部122b的兩側，但並不以此為限。於實際應用中，第二子畫素120的第二分支畫素電極123亦可錯位設置於第四主幹部122b的兩側，但對稱設置於第三主幹部122a的兩側。抑或，第二子畫素120的第二分支畫素電極123亦可同時錯位設置於第三主幹部122a與第四主幹部122b的兩側。In addition, although the second sub-pixel 120 of the second sub-pixel 120 is shown as being misaligned on both sides of the third trunk portion 122a and symmetrically disposed on both sides of the fourth trunk portion 122b, Not limited to this. In a practical application, the second sub-pixel electrodes 123 of the second sub-pixel 120 may also be dislocated on both sides of the fourth trunk portion 122b, but symmetrically disposed on both sides of the third trunk portion 122a. Alternatively, the second sub-pixel electrodes 123 of the second sub-pixel 120 may be disposed at the same time on both sides of the third trunk portion 122a and the fourth trunk portion 122b.
至於其他相關的結構、驅動方式與操作細節，均與第一實施方式相同，因此不再重複贅述之。Other related structures, driving methods, and operation details are the same as those of the first embodiment, and thus the description thereof will not be repeated.
實施例Example
以下將揭露本發明數個實施例，藉此說明上述實施方式之錯位設置的分支畫素電極以及不透明連接線路，確實能夠降低子畫素的側視亮度。應瞭解到，在以下敘述中，已經在上述實施方式中提到的參數將不再重複贅述，僅就需進一步界定者加以補充，合先敘明。Hereinafter, a plurality of embodiments of the present invention will be disclosed, thereby explaining that the branched pixel electrodes and the opaque connecting lines of the dislocations of the above embodiments can surely reduce the side view luminance of the sub-pixels. It should be understood that in the following description, the parameters that have been mentioned in the above embodiments will not be repeated, and will be supplemented only if further definitions are needed.
以下將比較各實施例之子畫素在相同條件下的亮度/灰階值曲線，並將結果繪示於第9圖。在第9圖中，橫軸為灰階值，縱軸為以正視最大亮度歸一化得出的亮度值。曲線A為Gamma 2.2以正視最大亮度歸一化得出的亮度/灰階值曲線。曲線B為分支畫素電極沒有做錯位設置且不包含不透明連接線路之子畫素，於側視角(方位角為60度)上的亮度/灰階值曲線。曲線C為具有不透明連接線路但分支畫素電極沒有做錯位設置之子畫素，於側視角(方位角為60度)上的亮度/灰階值曲線。曲線D為具有不透明連接線路且分支畫素電極也有做錯位設置之子畫素，於側視角(方位角為60度)上的亮度/灰階值曲線。由第9圖可以看得出來，曲線C與曲線D所表示的側視亮度確實較曲線A所表示的側視亮度為低。這個結果顯示上述實施方式之錯位設置的分支畫素電極以及不透明連接線路，確實能夠降低子畫素的側視亮度。The luminance/grayscale value curves of the sub-pixels of the respective examples under the same conditions will be compared below, and the results are shown in Fig. 9. In Fig. 9, the horizontal axis is the grayscale value, and the vertical axis is the luminance value normalized by the maximum brightness of the front view. Curve A is the luminance/grayscale value curve normalized by Gamma 2.2 with the maximum brightness. Curve B is a luminance/grayscale value curve on the side view angle (azimuth angle of 60 degrees) for the sub-pixels of the branch pixel electrodes that are not misaligned and do not contain opaque connection lines. Curve C is a luminance/grayscale value curve on a side view (azimuth angle of 60 degrees) for a sub-pixel with an opaque connection line but no branching of the bifurcated pixel. The curve D is a luminance/grayscale value curve with a opaque connecting line and a sub-pixel of the branching pixel electrode also having a misalignment setting at a side viewing angle (azimuth angle of 60 degrees). As can be seen from Fig. 9, the side view brightness indicated by curve C and curve D is indeed lower than the side view brightness indicated by curve A. This result shows that the bifurcated pixel electrode and the opaque connecting line which are dislocated in the above embodiment can surely reduce the side view luminance of the sub-pixel.
以下將比較各實施例之顯示面板在相同條件下的反差比/灰階值曲線，並將結果繪示於第10圖。在第10圖中，橫軸為灰階值，縱軸為第二顯示區與第一顯示區於側視角(方位角為60度)上的反差比(Contrast Ratio；CR)。曲線E代表第一子畫素與第二子畫素皆不具有不透明連接線路，且其分支畫素電極也沒有做錯位設置之顯示面板的反差比/灰階值曲線。曲線F代表第一子畫素具有不透明連接線路，且其分支畫素電極也有做錯位設置之顯示面板的反差比/灰階值曲線。在以上各實施例中，顯示面板所採用之液晶的光學延遲(Δnd)為350 nm。The contrast ratio/grayscale value curves of the display panels of the respective embodiments under the same conditions will be compared below, and the results are shown in FIG. In Fig. 10, the horizontal axis is the grayscale value, and the vertical axis is the contrast ratio (CR) of the second display region and the first display region at the side viewing angle (azimuth angle of 60 degrees). The curve E represents that neither the first sub-pixel nor the second sub-pixel has an opaque connection line, and the branch pixel electrode also has no contrast ratio/gray scale value curve of the display panel which is misaligned. The curve F represents that the first sub-pixel has an opaque connecting line, and the branching pixel electrode also has a contrast ratio/grayscale value curve of the display panel which is misaligned. In the above embodiments, the optical retardation (Δnd) of the liquid crystal used in the display panel is 350 nm.
由第10圖可以看得出來，曲線F所表示的反差比確實較曲線E所表示的反差比為高。具體而言，曲線F全灰階值的平均反差比較曲線E提昇約6.28%。這個結果顯示上述實施方式之錯位設置的分支畫素電極以及不透明連接線路，確實能夠提昇顯示面板的防窺能力。As can be seen from Fig. 10, the contrast ratio represented by the curve F is indeed higher than the contrast ratio represented by the curve E. Specifically, the average contrast comparison curve E of the curve F full gray scale value is increased by about 6.28%. This result shows that the branched pixel electrodes and the opaque connecting lines of the above-described embodiment of the misalignment can surely improve the anti-spying capability of the display panel.
雖然本發明已以實施方式揭露如上，然其並非用以限定本發明，任何熟習此技藝者，在不脫離本發明的精神和範圍內，當可作各種的更動與潤飾，因此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。While the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and the invention may be modified and modified in various ways without departing from the spirit and scope of the invention. The scope is subject to the definition of the scope of the patent application.
100．．．畫素100. . . Pixel
101．．．基板101. . . Substrate
102．．．資料線102. . . Data line
104．．．掃描線104. . . Scanning line
106．．．公共電位線106. . . Common potential line
110．．．第一子畫素110. . . First subpixel
111．．．第一主動元件111. . . First active component
111a．．．閘極111a. . . Gate
111b．．．閘介電層111b. . . Gate dielectric layer
111c．．．通道區111c. . . Channel area
111d．．．源極歐姆接觸層111d. . . Source ohmic contact layer
111e．．．汲極歐姆接觸層111e. . . Bungee ohmic contact layer
111f．．．源極111f. . . Source
111g．．．汲極111g. . . Bungee
112．．．第一主幹畫素電極112. . . First trunk pixel electrode
112a．．．第一主幹部112a. . . First main department
112b．．．第二主幹部112b. . . Second main department
112c．．．導電層112c. . . Conductive layer
113．．．第一分支畫素電極113. . . First branch pixel electrode
114．．．第一電容114. . . First capacitor
114a．．．下電極114a. . . Lower electrode
114b．．．介電層114b. . . Dielectric layer
114c．．．上電極114c. . . Upper electrode
115．．．第一不透明連接線路115. . . First opaque connection line
116．．．保護層116. . . The protective layer
116a．．．通孔116a. . . Through hole
120．．．第二子畫素120. . . Second subpixel
121．．．第二主動元件121. . . Second active component
121g．．．汲極121g. . . Bungee
122．．．第二主幹畫素電極122. . . Second trunk pixel electrode
122a．．．第三主幹部122a. . . Third main department
122b．．．第四主幹部122b. . . Fourth main department
123．．．第二分支畫素電極123. . . Second branch pixel electrode
124．．．第二電容124. . . Second capacitor
124c．．．上電極124c. . . Upper electrode
125．．．第二不透明連接線路125. . . Second opaque connecting line
126a．．．通孔126a. . . Through hole
D1．．．第一顯示區D1. . . First display area
D2．．．第二顯示區D2. . . Second display area
V．．．垂直方向V. . . Vertical direction
H．．．水平方向H. . . horizontal direction
I．．．線段I. . . Line segment
II．．．線段II. . . Line segment
III．．．線段III. . . Line segment
F1．．．第一配向區F1. . . First alignment zone
F2．．．第二配向區F2. . . Second alignment zone
S1．．．第三配向區S1. . . Third alignment zone
S2．．．第四配向區S2. . . Fourth alignment zone
A．．．曲線A. . . curve
B．．．曲線B. . . curve
C．．．曲線C. . . curve
D．．．曲線D. . . curve
E．．．曲線E. . . curve
F．．．曲線F. . . curve
第1圖繪示依照本發明第一實施方式之顯示面板於廣視角顯示模式下的示意圖。FIG. 1 is a schematic view showing a display panel according to a first embodiment of the present invention in a wide viewing angle display mode.
第2圖繪示第1圖之顯示面板於窄視角顯示模式下的示意圖。FIG. 2 is a schematic view showing the display panel of FIG. 1 in a narrow viewing angle display mode.
第3圖繪示第1圖之畫素的俯視圖。Fig. 3 is a plan view showing the pixel of Fig. 1.
第4圖繪示沿第3圖之線段I及線段II之剖面圖。Figure 4 is a cross-sectional view along line I and line II of Figure 3.
第5圖繪示依照本發明第二實施方式之畫素的俯視圖。Figure 5 is a plan view of a pixel in accordance with a second embodiment of the present invention.
第6圖繪示依照本發明第三實施方式之畫素的俯視圖。Figure 6 is a plan view of a pixel in accordance with a third embodiment of the present invention.
第7圖繪示依照本發明第四實施方式之畫素的俯視圖。Fig. 7 is a plan view showing a pixel according to a fourth embodiment of the present invention.
第8圖繪示依照本發明第五實施方式之畫素的俯視圖。Figure 8 is a plan view of a pixel in accordance with a fifth embodiment of the present invention.
第9圖繪示本發明複數個實施例的亮度/灰階值曲線。Figure 9 is a graph showing luminance/grayscale values for a plurality of embodiments of the present invention.
第10圖繪示本發明複數個實施例於側視角(方位角為60度)上的反差比/灰階值曲線。Figure 10 is a graph showing the contrast ratio/grayscale value curve for a plurality of embodiments of the present invention at a side angle of view (azimuth angle of 60 degrees).
第11圖繪示沿第3圖之線段III的剖面圖。Figure 11 is a cross-sectional view along line III of Figure 3.
第12圖繪示本發明另一變化實施方式之第一子畫素的剖面圖，其剖面位置與第11圖相同。Figure 12 is a cross-sectional view showing a first sub-pixel of another variation of the present invention, the cross-sectional position of which is the same as that of Figure 11.
100．．．畫素100. . . Pixel
102．．．資料線102. . . Data line
104．．．掃描線104. . . Scanning line
106．．．公共電位線106. . . Common potential line
110．．．第一子畫素110. . . First subpixel
111．．．第一主動元件111. . . First active component
111g．．．汲極111g. . . Bungee
112．．．第一主幹畫素電極112. . . First trunk pixel electrode
112a．．．第一主幹部112a. . . First main department
112b．．．第二主幹部112b. . . Second main department
113．．．第一分支畫素電極113. . . First branch pixel electrode
114．．．第一電容114. . . First capacitor
114c．．．上電極114c. . . Upper electrode
115．．．第一不透明連接線路115. . . First opaque connection line
116a．．．通孔116a. . . Through hole
120．．．第二子畫素120. . . Second subpixel
121．．．第二主動元件121. . . Second active component
121g．．．汲極121g. . . Bungee
122．．．第二主幹畫素電極122. . . Second trunk pixel electrode
122a．．．第三主幹部122a. . . Third main department
122b．．．第四主幹部122b. . . Fourth main department
123．．．第二分支畫素電極123. . . Second branch pixel electrode
124．．．第二電容124. . . Second capacitor
124c．．．上電極124c. . . Upper electrode
I．．．線段I. . . Line segment
II．．．線段II. . . Line segment
III．．．線段III. . . Line segment
F1．．．第一配向區F1. . . First alignment zone
F2．．．第二配向區F2. . . Second alignment zone
S1．．．第三配向區S1. . . Third alignment zone
S2．．．第四配向區S2. . . Fourth alignment zone
Claims (25)
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| CN104503155A (en) * | 2014-11-17 | 2015-04-08 | 深圳市华星光电技术有限公司 | Liquid crystal display pixel structure and manufacturing method thereof |
| CN104517576B (en) * | 2014-12-30 | 2016-07-06 | 深圳市华星光电技术有限公司 | A kind of driving method of display panels |
| CN106556951A (en) * | 2015-09-30 | 2017-04-05 | 群创光电股份有限公司 | Display device |
| CN105700065B (en) * | 2016-04-22 | 2019-05-07 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
| CN113707070B (en) * | 2017-10-31 | 2023-12-08 | 武汉天马微电子有限公司 | Display panel and display device |
| CN109036324B (en) * | 2018-10-08 | 2020-10-09 | 惠科股份有限公司 | Display panel and display device |
| CN109243394B (en) * | 2018-10-30 | 2022-02-15 | 昆山龙腾光电股份有限公司 | Narrow viewing angle display method |
| CN114326199B (en) * | 2021-12-31 | 2024-04-02 | 厦门天马微电子有限公司 | Display panel and display device |
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| TW201245823A (en) * | 2011-05-05 | 2012-11-16 | Au Optronics Corp | Liquid crystal display panel |
| TW201248274A (en) * | 2011-05-19 | 2012-12-01 | Au Optronics Corp | Display apparatus |
| US20130120466A1 (en) * | 2011-11-14 | 2013-05-16 | Au Optronics Corporation | Display panel and method of driving the same |
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