TWI427386B - Liquid crystal display - Google Patents
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本發明是有關於一種液晶面板，且特別是有關於一種畫素電極具有分支結構的之液晶面板。The present invention relates to a liquid crystal panel, and more particularly to a liquid crystal panel having a branched structure of a pixel electrode.
於液晶面板中，兩條相鄰的資料線與兩條相鄰的掃描線係相互交錯而形成畫素區域。在以往的畫素電極的配置中，畫素電極係僅配置在畫素區域中，而未與資料線相互疊合，以避免為金屬材料的畫素電極與為金屬材料的資料線之間產生寄生電容。然而，此種配置方式往往導致畫素的開口率減少。此外，為了避免畫素電極配置在畫素區域中時有對位誤差的情況，畫素電極的尺寸通常會再縮小，使得開口率更進一步減少。In the liquid crystal panel, two adjacent data lines and two adjacent scanning lines are interlaced to form a pixel area. In the configuration of the conventional pixel electrodes, the pixel electrodes are only disposed in the pixel region, but are not overlapped with the data lines to avoid generation between the pixel electrodes of the metal material and the data lines of the metal material. Parasitic capacitance. However, this configuration often results in a reduction in the aperture ratio of the pixels. In addition, in order to avoid the alignment error when the pixel electrode is disposed in the pixel region, the size of the pixel electrode is usually further reduced, so that the aperture ratio is further reduced.
隨著各式材料的開發及研究，畫素電極與資料線之間可藉由例如是有機材料來作為中間介質，使得畫素電極與資料線可相隔一定的距離。如此一來，畫素電極與資料線的寄生電容係可減少，以減小對電壓訊號的影響。換言之，畫素電極係可跨越到資料線的上方，以提升開口率而使得透光之比率可以增加。With the development and research of various materials, the pixel electrode and the data line can be used as an intermediate medium by, for example, an organic material, so that the pixel electrode and the data line can be separated by a certain distance. In this way, the parasitic capacitance of the pixel electrode and the data line can be reduced to reduce the influence on the voltage signal. In other words, the pixel electrode can span above the data line to increase the aperture ratio so that the ratio of light transmission can be increased.
目前，部份之畫素電極係具有分支電極，且部份之分支電極係跨越到資料線的上方。一般來說，當液晶面板中上下相鄰之畫素所欲顯示的灰階值差距大時，欲顯示高灰階值(例如是白色)之畫素的訊號相當容易影響到相鄰之欲顯示低灰階值(例如是黑色)之畫素的訊號。進一步來說，經由資料線傳送的電壓訊號相當可能從兩個分支電極間的間距處竄出而產生電場，使得影響液晶分子之傾倒方向錯亂。如此一來，原先預定顯示低灰階值的畫素可能有漏光的情況而影響顯示之品質。因此，如何提供一種可改善漏光的情況之顯示面板，以具有良好顯示品質，乃為相關業者努力之課題之一。At present, some of the pixel electrodes have branch electrodes, and some of the branch electrodes cross over the data line. Generally, when the grayscale value of the upper and lower adjacent pixels in the liquid crystal panel is large, the signal of the pixel to display a high grayscale value (for example, white) is relatively easy to affect the adjacent display. A signal of a pixel with a low grayscale value (for example, black). Further, the voltage signal transmitted through the data line is likely to be generated from the spacing between the two branch electrodes to generate an electric field, so that the tilting direction of the liquid crystal molecules is disturbed. As a result, pixels that were originally scheduled to display low grayscale values may have light leakage and affect the quality of the display. Therefore, how to provide a display panel capable of improving light leakage to have good display quality is one of the subjects of the related industry.
本發明有關於一種液晶面板，其透過間距之設計來減少漏光的情況，以提高液晶面板顯示畫面時的品質且增加產品的競爭力。The invention relates to a liquid crystal panel, which has a transmission pitch design to reduce light leakage, thereby improving the quality of the liquid crystal panel when displaying a picture and increasing the competitiveness of the product.
根據本發明，提出一種液晶面板，包括一第一基板、一第二基板、一液晶層、數條資料線、數條掃描線及數個畫素電極。第一基板及第二基板彼此對應地配置。液晶層配置於第一基板與第二基板之間。此些條資料線及此些條掃描線配置於第一基板上。此些條資料線之任相鄰二者與此些條掃描線之任相鄰二者相互交錯，以形成一畫素區域。各畫素電極包括一主體、數個第一分支電極及數個第二分支電極。主體位於畫素區域內。此些第一分支電極自主體於畫素區域內延伸。此些第二分支電極自主體向外延伸而跨越此些條資料線之上方。此些第一分支電極各具有一第一間距。此些第二分支電極各具有一第二間距。第二間距小於第一間距。According to the present invention, a liquid crystal panel is provided, including a first substrate, a second substrate, a liquid crystal layer, a plurality of data lines, a plurality of scanning lines, and a plurality of pixel electrodes. The first substrate and the second substrate are disposed corresponding to each other. The liquid crystal layer is disposed between the first substrate and the second substrate. The strips of data lines and the strips of scan lines are disposed on the first substrate. The adjacent two of the strips of data and the adjacent ones of the strips of scan lines are interleaved to form a pixel region. Each of the pixel electrodes includes a body, a plurality of first branch electrodes, and a plurality of second branch electrodes. The subject is located in the pixel area. The first branch electrodes extend from the main body in the pixel region. The second branch electrodes extend outward from the body across the plurality of data lines. The first branch electrodes each have a first pitch. The second branch electrodes each have a second pitch. The second pitch is smaller than the first pitch.
根據本發明，再提出一種液晶面板，包括一第一基板、一第二基板、一液晶層、數條資料線、數條掃描線及數個畫素電極。第一基板及第二基板彼此對應地配置。液晶層配置於第一基板與第二基板之間。此些條資料線及此些條掃描線配置於第一基板上。此些條資料線之任相鄰二者與此些條掃描線之任相鄰二者相互交錯，以形成一畫素區域。各畫素電極包括一主體、數個第一分支電極及數個第二分支電極。主體位於畫素區域內。此些第一分支電極自主體於畫素區域內延伸。此些第二分支電極自主體向外延伸而跨越此些條掃描線之上方。此些第一分支電極各具有一第一間距。此些第二分支電極各具有一第二間距。第二間距小於第一間距。According to the present invention, a liquid crystal panel is further provided, including a first substrate, a second substrate, a liquid crystal layer, a plurality of data lines, a plurality of scanning lines, and a plurality of pixel electrodes. The first substrate and the second substrate are disposed corresponding to each other. The liquid crystal layer is disposed between the first substrate and the second substrate. The strips of data lines and the strips of scan lines are disposed on the first substrate. The adjacent two of the strips of data and the adjacent ones of the strips of scan lines are interleaved to form a pixel region. Each of the pixel electrodes includes a body, a plurality of first branch electrodes, and a plurality of second branch electrodes. The subject is located in the pixel area. The first branch electrodes extend from the main body in the pixel region. The second branch electrodes extend outward from the body across the plurality of scan lines. The first branch electrodes each have a first pitch. The second branch electrodes each have a second pitch. The second pitch is smaller than the first pitch.
為了對本發明之上述及其他方面有更佳的瞭解，下文特舉實施例，並配合所附圖式，作詳細說明如下：In order to provide a better understanding of the above and other aspects of the present invention, the following detailed description of the embodiments and the accompanying drawings
請參照第1A圖及第1B圖，第1A圖繪示根據本發明第一實施例之液晶面板的示意圖，且第1B圖繪示第1A圖中之部份之液晶面板的上視圖。為了清楚地顯示畫素電極150的配置及形狀，液晶面板100中之部份元件係未於第1B圖中繪示出來。1A and 1B, FIG. 1A is a schematic view of a liquid crystal panel according to a first embodiment of the present invention, and FIG. 1B is a top view of a portion of the liquid crystal panel of FIG. In order to clearly show the arrangement and shape of the pixel electrode 150, some of the components in the liquid crystal panel 100 are not shown in FIG. 1B.
液晶面板100包括第一基板110、第二基板120、液晶層130、數條資料線140d、數條掃描線140s、數個畫素電極150及材料層160。The liquid crystal panel 100 includes a first substrate 110, a second substrate 120, a liquid crystal layer 130, a plurality of data lines 140d, a plurality of scanning lines 140s, a plurality of pixel electrodes 150, and a material layer 160.
第一基板110及第二基板120彼此對應地配置。液晶層130配置於第一基板110與第二基板120之間。此些條資料線140d及此些條掃描線140s配置於第一基板110上，且此些資料線140d之任相鄰二者與此些條掃描線140s之任相鄰二者相互交錯，以形成畫素區域Ap。The first substrate 110 and the second substrate 120 are disposed corresponding to each other. The liquid crystal layer 130 is disposed between the first substrate 110 and the second substrate 120. The strips 140d and the strips 140s are disposed on the first substrate 110, and any adjacent ones of the data lines 140d and the adjacent ones of the scan lines 140s are interdigitated to form a pixel region. Ap.
材料層160覆蓋掃描線140s與資料線140d，且畫素電極150配置於材料層160上，使得畫素電極150藉由材料層160來與資料層140d分隔地配置。如此一來，一旦材料層160的厚度適度的調整，寄生電容係可有效地減少。此處的材料層160可例如是絕緣層或保護層。The material layer 160 covers the scan line 140s and the data line 140d, and the pixel electrode 150 is disposed on the material layer 160 such that the pixel electrode 150 is disposed apart from the data layer 140d by the material layer 160. As such, once the thickness of the material layer 160 is moderately adjusted, the parasitic capacitance can be effectively reduced. The material layer 160 herein may be, for example, an insulating layer or a protective layer.
各畫素電極150包括主體151、數個第一分支電極1531及數個第二分支電極1532。主體151位於畫素區域Ap內。第一分支電極1531自主體151於畫素區域Ap內延伸。換言之，第一分支電極1531僅位於畫素區域Ap內。第二分支電極1532自主體151向外延伸而跨越資料線140d之上方。此些第一分支電極1531各具有第一間距d1，且此些第二分支電極1532各具有第二間距d2。於本實施例中，第二間距d2小於第一間距d1。Each of the pixel electrodes 150 includes a body 151, a plurality of first branch electrodes 1531, and a plurality of second branch electrodes 1532. The body 151 is located in the pixel area Ap. The first branch electrode 1531 extends from the body 151 in the pixel area Ap. In other words, the first branch electrode 1531 is located only in the pixel area Ap. The second branch electrode 1532 extends outward from the body 151 across the data line 140d. The first branch electrodes 1531 each have a first pitch d1, and the second branch electrodes 1532 each have a second pitch d2. In this embodiment, the second pitch d2 is smaller than the first pitch d1.
本實施例之第一分支電極1531係為等寬之結構，且各第一分支電極1531之寬度係為第一寬度w1。第二分支電極1532係為等寬之結構，且各第二分支電極1532之寬度係為第二寬度w2。若以第一寬度w1與第一間距d1的總和例如是7微米(μm)，則位於畫素區域Ap內之第一間距d1係為3.5微米(μm)。或者，若以第一寬度w1與第一間距d1的總和例如是6微米(μm)，則位於畫素區域Ap內之第一間距d1係為3微米(μm)。另外，在考慮機台的製程能力與畫素之穿透率的前提下，以第二寬度w2與第二間距d2的總和例如是7微米(μm)為例來說，第二間距d2係小於2.7微米(μm)且超過0微米(μm)。The first branch electrodes 1531 of the present embodiment have a structure of equal width, and the width of each of the first branch electrodes 1531 is the first width w1. The second branch electrodes 1532 are of equal width and the width of each of the second branch electrodes 1532 is a second width w2. If the sum of the first width w1 and the first pitch d1 is, for example, 7 micrometers (μm), the first pitch d1 located in the pixel region Ap is 3.5 micrometers (μm). Alternatively, if the sum of the first width w1 and the first pitch d1 is, for example, 6 micrometers (μm), the first pitch d1 located in the pixel region Ap is 3 micrometers (μm). In addition, considering the process capability of the machine and the transmittance of the pixel, the second pitch d2 is smaller than the sum of the second width w2 and the second pitch d2, for example, 7 micrometers (μm). 2.7 micrometers (μm) and more than 0 micrometers (μm).
一般來說，由於分支電極係跨越資料線的上方，因此，在液晶面板中上下相鄰之畫素所欲顯示的灰階值差距大時，欲顯示高灰階值之畫素的訊號相當容易影響相鄰之欲顯示低灰階值之畫素的訊號。進一步來說，經由資料線傳送的電壓訊號相當可能從兩個分支電極間的間距處竄出而產生電場，使得影響液晶分子之傾倒方向錯亂而有漏光的情況。相較之下，本實施例之位於資料線140d的上方的第二間距d2係縮小但不完全閉合。如此一來，在第二間距d2縮小的情況下，位於資料線140d之上方的液晶分子將不易受到電場影響而產生漏光的情況，以改善顯示品質。此外，在第二間距d2不完全閉合的情況下，畫素之穿透率仍可維持。In general, since the branch electrodes are above the data lines, it is quite easy to display a pixel of a high gray level value when the gray scale value of the pixels adjacent to each other in the liquid crystal panel is large. A signal that affects adjacent pixels that want to display low grayscale values. Further, the voltage signal transmitted through the data line is likely to be generated from the spacing between the two branch electrodes to generate an electric field, so that the tilting direction of the liquid crystal molecules is disturbed and light leakage occurs. In contrast, the second pitch d2 of the present embodiment above the data line 140d is reduced but not completely closed. As a result, when the second pitch d2 is reduced, the liquid crystal molecules located above the data line 140d are less likely to be affected by the electric field to cause light leakage, thereby improving display quality. Further, in the case where the second pitch d2 is not completely closed, the pixel transmittance can be maintained.
此外，一般來說，第二間距d2的大小可更進一步根據材料層160的厚度作調整，而讓漏光量不構成影響顯示品質的因素。請參照表1，其表列出在不同之第二間距d2的大小與材料層160的厚度下進行模擬，第二間距d2處產生漏光量的大小。於表1中，模擬出來的漏光量係進行正規化(normalize)，且材料層160的厚度為3μm且第二間距d2的大小為6μm時，第二間距d2處產生的漏光量係正規化為1。如此一來，其他欄位中的漏光量可視為相對於材料層160的厚度為3μm且第二間距d2的大小為6μm時之第二間距d2處產生的漏光量的比例。Further, in general, the size of the second pitch d2 can be further adjusted according to the thickness of the material layer 160, and the amount of light leakage does not constitute a factor affecting the display quality. Please refer to Table 1, which shows the simulation under the different second spacing d2 and the thickness of the material layer 160, and the amount of light leakage generated at the second spacing d2. In Table 1, when the simulated light leakage amount is normalized, and the thickness of the material layer 160 is 3 μm and the size of the second pitch d2 is 6 μm, the amount of light leakage generated at the second pitch d2 is normalized to 1. As a result, the amount of light leakage in the other fields can be regarded as the ratio of the amount of light leakage generated at the second pitch d2 when the thickness of the material layer 160 is 3 μm and the size of the second pitch d2 is 6 μm.
表1Table 1
一般來說，若第二間距d2處之漏光量經過正規化後之數值係為2.31時，漏光的情況會顯現在液晶面板所顯示的畫面中。因此，第二間距d2處之漏光量經過正規化後之數值若能小於2.31，方為可接受的數值。也就是說，當材料層160的厚度為為2微米(μm)時，第二間距d2係小於4.5微米(μm)，以使漏光量成為可接受的數值。當材料層160的厚度為為2.5微米(μm)時，第二間距d2係小於5.5微米(μm)，以使漏光量成為可接受的數值。當材料層160的厚度為為3微米(μm)時，第二間距d2係小於6微米(μm)，以使漏光量成為可接受的數值。In general, if the amount of light leakage at the second pitch d2 is normalized to 2.31, the light leakage will appear in the screen displayed on the liquid crystal panel. Therefore, if the amount of light leakage at the second pitch d2 is normalized, the value can be less than 2.31, which is an acceptable value. That is, when the thickness of the material layer 160 is 2 micrometers (μm), the second pitch d2 is less than 4.5 micrometers (μm) to make the amount of light leakage an acceptable value. When the thickness of the material layer 160 is 2.5 micrometers (μm), the second pitch d2 is less than 5.5 micrometers (μm) to make the amount of light leakage an acceptable value. When the thickness of the material layer 160 is 3 micrometers (μm), the second pitch d2 is less than 6 micrometers (μm) to make the amount of light leakage an acceptable value.
請參照第2A圖、第2B圖及第3圖，第2A圖繪示根據本發明第二實施例之液晶面板的示意圖，第2B圖繪示第2A圖中之部份之液晶面板的上視圖，且第3圖繪示第2B圖中之區域A的局部放大圖。為了清楚地顯示畫素電極250的配置及形狀，液晶面板200中之部份元件係未於第2B圖中繪示出來。Please refer to FIG. 2A, FIG. 2B and FIG. 3 , FIG. 2A is a schematic diagram of a liquid crystal panel according to a second embodiment of the present invention, and FIG. 2B is a top view of a portion of the liquid crystal panel of FIG. 2A And FIG. 3 is a partial enlarged view of a region A in FIG. 2B. In order to clearly show the arrangement and shape of the pixel electrode 250, some of the components in the liquid crystal panel 200 are not shown in FIG. 2B.
相較於第一實施例之液晶面板100，本實施例之液晶面板200的畫素電極250之形狀不同。其他類似的結構係以相同之元件符號標註且並不重複說明。The shape of the pixel electrode 250 of the liquid crystal panel 200 of the present embodiment is different from that of the liquid crystal panel 100 of the first embodiment. Other similar structures are denoted by the same reference numerals and are not repeated.
於本實施例中，第一分支電極1531係為等寬之結構，但第二分支電極2532為不等寬之結構，以下詳細地說明。第二分支電極2532各具有連接部2532a及跨越部2532b。連接部2532a位於畫素區域Ap內且連接於主體151，且跨越部2532b連接於連接部2532a且延伸至資料線140d的上方。連接部2532a彼此相隔第一間距d1且各連接部2532a具有第一寬度w1。也就是說，位於畫素區域Ap內之兩個相鄰的第一分支電極1531間的間距相等於位於畫素區域Ap內之兩個相鄰之連接部2532a的間距。跨越部2532b彼此相隔第二間距d2且各跨越部2532b具有第二寬度w2。於本實施例中，第二間距d2小於第一間距d1。也就是說，跨越資料線140d之兩個相鄰之跨越部2532b之間距小於位於畫素區域Ap內之兩個相鄰之第一分支電極1531間的間距及兩個相鄰之連接部2532a的間距。In the present embodiment, the first branch electrodes 1531 are of equal width, but the second branch electrodes 2532 have a structure of unequal width, which will be described in detail below. The second branch electrodes 2532 each have a connection portion 2532a and a span portion 2532b. The connecting portion 2532a is located in the pixel area Ap and is connected to the main body 151, and the crossing portion 2532b is connected to the connecting portion 2532a and extends above the data line 140d. The connecting portions 2532a are spaced apart from each other by a first pitch d1 and each connecting portion 2532a has a first width w1. That is, the pitch between two adjacent first branch electrodes 1531 located in the pixel area Ap is equal to the pitch of two adjacent connection portions 2532a located in the pixel area Ap. The spanning portions 2532b are spaced apart from each other by a second spacing d2 and each spanning portion 2532b has a second width w2. In this embodiment, the second pitch d2 is smaller than the first pitch d1. That is, the distance between two adjacent spanning portions 2532b across the data line 140d is smaller than the spacing between two adjacent first branch electrodes 1531 located in the pixel region Ap and the two adjacent connecting portions 2532a. spacing.
若以連接部2532a之第一寬度w1與第一間距d1的總和例如是7微米(μm)，則位於畫素區域Ap內之第一間距d1係為3.5微米(μm)。另外，在考慮機台的製程能力與畫素之穿透率的前提下，以跨越部2532b之第二寬度w2與第二間距d2的總和例如是7微米(μm)為例來說，第二間距d2係小於2.7微米(μm)且超過0微米(μm)。如此一來，本實施例之液晶面板200係可具有類似於第一實施例之液晶面板100的優點，以減少漏光的情況來提升顯示畫面的品質。此外，由於本實施例之第二分支電極2532係為不等寬之結構，也就是僅跨越資料線140d之上方的跨越部2532b係增加寬度而對應地縮減間距。因此，相較於所有畫素區域都佈滿增加寬度之分支電極而對應地縮減間距的情況來說，本實施例之液晶面板200因機台之製程能力不足而可能導致光不均(mura)的情況可有效地減少。另外，第二間距d2的大小可如第一實施例所述根據材料層160的厚度作調整，而讓漏光量在可接受的範圍內。If the sum of the first width w1 and the first pitch d1 of the connecting portion 2532a is, for example, 7 micrometers (μm), the first pitch d1 in the pixel region Ap is 3.5 micrometers (μm). In addition, considering the process capability of the machine and the transmittance of the pixel, the sum of the second width w2 and the second pitch d2 of the span portion 2532b is, for example, 7 micrometers (μm), for example, The pitch d2 is less than 2.7 micrometers (μm) and exceeds 0 micrometers (μm). As a result, the liquid crystal panel 200 of the present embodiment can have advantages similar to those of the liquid crystal panel 100 of the first embodiment to reduce the light leakage to improve the quality of the display screen. In addition, since the second branch electrode 2532 of the present embodiment has a structure of unequal width, that is, only the span portion 2532b above the data line 140d is increased in width to correspondingly reduce the pitch. Therefore, the liquid crystal panel 200 of the present embodiment may cause light unevenness due to insufficient processing capability of the machine, as compared with the case where all of the pixel regions are covered with the branch electrodes of the increased width and the pitch is correspondingly reduced. The situation can be effectively reduced. In addition, the size of the second pitch d2 can be adjusted according to the thickness of the material layer 160 as described in the first embodiment, so that the amount of light leakage is within an acceptable range.
再者，為了減少因製程上的對位誤差而導致跨越部2532b未確實跨越資料線140d之上方的情況，本實施例之跨越部2532b的相對兩側邊s11及s12分別位於資料線140d之相對兩側邊s21及s22外，且實質上平行於資料線140d之兩側邊s21及s22。其中，跨越部2532b之側邊s11位於畫素區域Ap內，且與資料線140d之較鄰近於畫素區域Ap的側邊s21相隔2微米(μm)。如此一來，即使跨越部2532b因製程上的對位誤差而往左偏移時，跨越部2532b之側邊s11與資料線140d的側邊s21之間的間距係可讓跨越部2532b仍可跨越在資料線140d上。Moreover, in order to reduce the situation that the span portion 2532b does not actually straddle the data line 140d due to the alignment error on the process, the opposite side edges s11 and s12 of the span portion 2532b of the present embodiment are respectively located at the opposite side of the data line 140d. The two sides s21 and s22 are outside, and are substantially parallel to the two sides s21 and s22 of the data line 140d. The side s11 of the spanning portion 2532b is located in the pixel area Ap, and is spaced apart from the side s21 of the data line 140d adjacent to the pixel area Ap by 2 micrometers (μm). In this way, even if the spanning portion 2532b is shifted to the left due to the alignment error on the process, the spacing between the side s11 of the spanning portion 2532b and the side s21 of the data line 140d allows the spanning portion 2532b to still span. On the data line 140d.
一般來說，液晶層130中之液晶分子的轉向係沿著畫素電極250的邊緣傾倒。若畫素電極250的邊緣轉折過大時，液晶分子的轉向會不太平順。舉例來說，連接部2532a與跨越部2532b的寬度差係會在連接部2532a與跨越部2532bs的連接交界處形成轉折大的邊緣。為了減少前述之液晶分子的轉向有不太平順的可能性，本實施例之各畫素電極250更具有緩衝部2532c，緩衝部2532c連接於跨越部2532b及連接部2532a之間。緩衝部2532c之側邊s4與連接部2532a之側邊s3的夾角例如是150~170度而可減少畫素電極250的邊緣過度轉折的情況。也就是說，緩衝部2532c係位於跨越部2532b及連接部2532a之交界處。如此一來，液晶層130的液晶分子的轉向可更為平順。Generally, the steering of the liquid crystal molecules in the liquid crystal layer 130 is tilted along the edges of the pixel electrode 250. If the edge transition of the pixel electrode 250 is too large, the steering of the liquid crystal molecules may be less smooth. For example, the difference in width between the connecting portion 2532a and the span portion 2532b forms a large turning edge at the junction of the connecting portion 2532a and the span portion 2532bs. In order to reduce the possibility that the steering of the liquid crystal molecules is not smooth, the pixel electrodes 250 of the present embodiment further have a buffer portion 2532c, and the buffer portion 2532c is connected between the span portion 2532b and the connecting portion 2532a. The angle between the side s4 of the buffer portion 2532c and the side s3 of the connecting portion 2532a is, for example, 150 to 170 degrees, and the edge of the pixel electrode 250 may be excessively turned. That is, the buffer portion 2532c is located at the boundary between the crossing portion 2532b and the connecting portion 2532a. As a result, the liquid crystal molecules of the liquid crystal layer 130 can be turned more smoothly.
請參照第4圖，其繪示根據本發明第三實施例之部份之液晶面板的上視圖。相較於第一實施例，畫素電極350之配置略有不同。主體151位於畫素區域Ap內，且第一分支電極1531自主體151於畫素區域Ap內延伸。然而，本實施例之第二分支電極3532自主體151向外延伸而跨越掃描線140s之上方。其他類似的結構係不重複說明。Please refer to FIG. 4, which is a top view of a liquid crystal panel according to a third embodiment of the present invention. The configuration of the pixel electrodes 350 is slightly different than in the first embodiment. The body 151 is located in the pixel area Ap, and the first branch electrode 1531 extends from the body 151 in the pixel area Ap. However, the second branch electrode 3532 of the present embodiment extends outward from the body 151 across the scan line 140s. Other similar structures are not repeated.
如此一來，本實施例之液晶面板係可達到類似於第一實施例之液晶面板的功效，而使得掃描線140s之上方的液晶分子將不易受到電場影響而產生漏光的情況，以改善顯示品質。此外，畫素之穿透率仍可維持。In this way, the liquid crystal panel of the embodiment can achieve the effect similar to that of the liquid crystal panel of the first embodiment, so that the liquid crystal molecules above the scanning line 140s will be less susceptible to the electric field and cause light leakage to improve the display quality. . In addition, the penetration rate of pixels can be maintained.
請參照第5圖，其繪示根據本發明第四實施例之部份之液晶面板的上視圖。相較於第二實施例，畫素電極450之配置略有不同。主體151位於畫素區域Ap內，且第一分支電極1531自主體151於畫素區域Ap內延伸。第二分支電極4532各具有連接部4532a及跨越部4532b。連接部4532a位於畫素區域Ap內且連接於主體151，且跨越部4532b連接於連接部4532a且延伸至掃描線140s的上方。其他類似的結構係不重複說明。Referring to FIG. 5, a top view of a liquid crystal panel according to a fourth embodiment of the present invention is shown. The configuration of the pixel electrodes 450 is slightly different than that of the second embodiment. The body 151 is located in the pixel area Ap, and the first branch electrode 1531 extends from the body 151 in the pixel area Ap. The second branch electrodes 4532 each have a connecting portion 4532a and a span portion 4532b. The connecting portion 4532a is located in the pixel area Ap and is connected to the main body 151, and the crossing portion 4532b is connected to the connecting portion 4532a and extends above the scanning line 140s. Other similar structures are not repeated.
如此一來，本實施例之液晶面板係可具有類似於第二實施例之液晶面板200的優點，以減少漏光的情況來提升顯示畫面的品質。此外，由於本實施例之第二分支電極4532係為不等寬之結構，也就是僅跨越掃描線140s之上方的跨越部4532b係增加寬度而對應地縮減間距。因此，相較於所有畫素區域都佈滿增加寬度之分支電極而對應地縮減間距的情況來說，本實施例之液晶面板因機台之製程能力不足而可能導致光不均(mura)的情況可有效地減少。As a result, the liquid crystal panel of the present embodiment can have advantages similar to those of the liquid crystal panel 200 of the second embodiment to reduce the light leakage to improve the quality of the display screen. In addition, since the second branch electrode 4532 of the present embodiment has a structure of unequal width, that is, the span portion 4532b that spans only over the scan line 140s increases the width and correspondingly reduces the pitch. Therefore, the liquid crystal panel of the present embodiment may cause light unevenness (mura) due to insufficient process capability of the machine, as compared with the case where all the pixel regions are covered with the branch electrodes of the increased width and the pitch is correspondingly reduced. The situation can be effectively reduced.
再者，為了減少因製程上的對位誤差而導致跨越部4532b未確實跨越掃描線140s之上方的情況，本實施例之跨越部4532b與掃描線140s之配置關係可類似於第二實施例之跨越部2532b與資料線140d之配置關係，以讓跨越部4532b可確實跨越掃描線140s之上方。Moreover, in order to reduce the situation that the span portion 4532b does not actually straddle the scan line 140s due to the alignment error on the process, the arrangement relationship of the span portion 4532b and the scan line 140s of the present embodiment may be similar to that of the second embodiment. The arrangement of the spanning portion 2532b and the data line 140d is such that the spanning portion 4532b can surely straddle the scanning line 140s.
另外，跨越部4532b與連接部4532a之間可藉由緩衝部的配置來進行填補且修飾，以讓液晶層的液晶分子的轉向可更為平順。In addition, the gap between the spanning portion 4532b and the connecting portion 4532a can be filled and modified by the arrangement of the buffer portion to make the liquid crystal molecules of the liquid crystal layer turn more smoothly.
根據本發明上述實施例之液晶面板，其藉由跨越資料線或掃描線上之相鄰的第二分支電極的間距設計，以減少漏光來提升顯示時的品質及市場競爭力。於一實施例中，跨越資料線或掃描線上之第二分支電極係以整體寬度加大的方式來使相鄰的第二分支電極的間距縮減，以減少漏光的情況。於另一實施例中，跨越資料線或掃描線上的第二分支電極係局部地加大寬度，以使相鄰的第二分支電極的間距縮減。如此一來，不但顯示時漏光的情況係可改善，且顯示面板之成品受到機台的製程能力影響的情況亦可減少。此外，緩衝部係配置在跨越部與連接部之間，以讓液晶層的液晶分子的轉向更為平順。According to the liquid crystal panel of the above embodiment of the present invention, the pitch of the adjacent second branch electrodes across the data lines or the scan lines is designed to reduce light leakage to improve display quality and market competitiveness. In one embodiment, the second branch electrodes across the data lines or scan lines reduce the pitch of adjacent second branch electrodes in a manner that increases the overall width to reduce light leakage. In another embodiment, the width of the second branch electrode across the data line or the scan line is locally increased to reduce the pitch of adjacent second branch electrodes. In this way, not only the case of light leakage during display can be improved, but also the situation that the finished product of the display panel is affected by the process capability of the machine can be reduced. Further, the buffer portion is disposed between the crossing portion and the connecting portion to make the liquid crystal molecules of the liquid crystal layer turn more smoothly.
綜上所述，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。本發明所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作各種之更動與潤飾。因此，本發明之保護範圍當視後附之申請專利範圍所界定者為準。In conclusion, the present invention has been disclosed in the above embodiments, but it is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.
100、200．．．液晶面板100, 200. . . LCD panel
110．．．第一基板110. . . First substrate
120．．．第二基板120. . . Second substrate
130．．．液晶層130. . . Liquid crystal layer
140d．．．資料線140d. . . Data line
140s．．．掃描線140s. . . Scanning line
150、250、350、450．．．畫素電極150, 250, 350, 450. . . Pixel electrode
151．．．主體151. . . main body
1531．．．第一分支電極1531. . . First branch electrode
1532、2532、3532、4532．．．第二分支電極1532, 2532, 3532, 4532. . . Second branch electrode
160．．．材料層160. . . Material layer
2532a、4532a．．．連接部2532a, 4532a. . . Connection
2532b、4532b．．．跨越部2532b, 4532b. . . Span
2532c．．．緩衝部2532c. . . Buffer section
A．．．區域A. . . region
Ap．．．畫素區域Ap. . . Pixel region
d1．．．第一間距D1. . . First spacing
d2．．．第二間距D2. . . Second spacing
s11、s12、s21、s22、s3、s4．．．側邊S11, s12, s21, s22, s3, s4. . . Side
w1．．．第一寬度W1. . . First width
w2．．．第二寬度W2. . . Second width
第1A圖繪示根據本發明第一實施例之液晶面板的示意圖。FIG. 1A is a schematic view showing a liquid crystal panel according to a first embodiment of the present invention.
第1B圖繪示第1A圖中之部份之液晶面板的上視圖。Fig. 1B is a top view showing a portion of the liquid crystal panel of Fig. 1A.
第2A圖繪示根據本發明第二實施例之液晶面板的示意圖。2A is a schematic view showing a liquid crystal panel according to a second embodiment of the present invention.
第2B圖繪示第2A圖中之部份之液晶面板的上視圖。FIG. 2B is a top view of the liquid crystal panel of the portion in FIG. 2A.
第3圖繪示第2B圖中之區域A的局部放大圖。Fig. 3 is a partially enlarged view showing a region A in Fig. 2B.
第4圖繪示根據本發明第三實施例之部份之液晶面板的上視圖。4 is a top view of a liquid crystal panel according to a portion of the third embodiment of the present invention.
第5圖繪示根據本發明第四實施例之部份之液晶面板的上視圖。Fig. 5 is a top view of a liquid crystal panel according to a portion of the fourth embodiment of the present invention.
110．．．第一基板110. . . First substrate
140d．．．資料線140d. . . Data line
140s．．．掃描線140s. . . Scanning line
150．．．畫素電極150. . . Pixel electrode
151．．．主體151. . . main body
1531．．．第一分支電極1531. . . First branch electrode
1532．．．第二分支電極1532. . . Second branch electrode
Ap．．．畫素區域Ap. . . Pixel region
d1．．．第一間距D1. . . First spacing
d2．．．第二間距D2. . . Second spacing
w1．．．第一寬度W1. . . First width
w2．．．第二寬度W2. . . Second width
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| US20020163604A1 (en) * | 2001-05-07 | 2002-11-07 | Kim Hyang Yul | In plane fringe field switching mode LCD realizing high screen quality |
| TWI264590B (en) * | 2004-10-28 | 2006-10-21 | Au Optronics Corp | Thin film transistor array and repairing method thereof |
| US20080137019A1 (en) * | 2006-12-11 | 2008-06-12 | Jeong-Uk Heo | Liquid crystal display device and method of manufacture |
| TW200841102A (en) * | 2007-04-04 | 2008-10-16 | Wintek Corp | Liquid crystal display and active matrix substrate thereof |
| TW200841099A (en) * | 2007-04-12 | 2008-10-16 | Wintek Corp | Liquid crystal display and active matrix substrate thereof |
| TW201122693A (en) * | 2009-12-31 | 2011-07-01 | Chi Mei Optoelectronics Corp | A substrate with multi-domain vertical alignment pixel structure and fabricating method thereof, liquid crystal display panel and liquid crystal display |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020163604A1 (en) * | 2001-05-07 | 2002-11-07 | Kim Hyang Yul | In plane fringe field switching mode LCD realizing high screen quality |
| TWI264590B (en) * | 2004-10-28 | 2006-10-21 | Au Optronics Corp | Thin film transistor array and repairing method thereof |
| US20080137019A1 (en) * | 2006-12-11 | 2008-06-12 | Jeong-Uk Heo | Liquid crystal display device and method of manufacture |
| TW200841102A (en) * | 2007-04-04 | 2008-10-16 | Wintek Corp | Liquid crystal display and active matrix substrate thereof |
| TW200841099A (en) * | 2007-04-12 | 2008-10-16 | Wintek Corp | Liquid crystal display and active matrix substrate thereof |
| TW201122693A (en) * | 2009-12-31 | 2011-07-01 | Chi Mei Optoelectronics Corp | A substrate with multi-domain vertical alignment pixel structure and fabricating method thereof, liquid crystal display panel and liquid crystal display |
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