TW201602879A - Touch panel - Google Patents
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Abstract
Description
本發明是有關於一種觸控面板，且特別是有關於一種輕薄且信賴性良好的觸控面板。 The present invention relates to a touch panel, and in particular to a touch panel that is light and thin and has good reliability.
電容式觸控面板通常包括至少一承載基板、多條電極以及一蓋板。承載基板用以承載電極，電極彼此相交以進行觸控感測，再以一蓋板覆蓋於電極上以提供電極保護，並獲得較佳的感測效果。在現有技術中，承載基板最薄也要100微米(μm)。為使觸控面板更加輕薄，發展出一種直接將電極製作於蓋板上的觸控面板。由於這種觸控面板將電極整合於蓋板的同一表面上，因此電極的相交處一般設置有島狀的絕緣圖案，以使相交的電極彼此電性絕緣。然而，電極跨越絕緣圖案時容易增加斷線的機率，而降低觸控面板的信賴性。因此，如何使觸控面板輕薄化並具有良好的信賴性是相當重要的課題。 The capacitive touch panel generally includes at least one carrier substrate, a plurality of electrodes, and a cover. The carrier substrate is used to carry the electrodes, the electrodes intersect each other for touch sensing, and a cover plate is placed on the electrodes to provide electrode protection, and a better sensing effect is obtained. In the prior art, the carrier substrate is also as thin as 100 micrometers (μm). In order to make the touch panel thinner and lighter, a touch panel has been developed which directly forms the electrode on the cover. Since the touch panel integrates the electrodes on the same surface of the cover plate, the intersection of the electrodes is generally provided with an island-shaped insulating pattern to electrically insulate the intersecting electrodes from each other. However, when the electrode crosses the insulating pattern, the probability of disconnection is easily increased, and the reliability of the touch panel is reduced. Therefore, how to make the touch panel thin and light and has good reliability is an important issue.
本發明提供一種觸控面板，其輕薄且信賴性良好。 The invention provides a touch panel which is light and thin and has good reliability.
本發明的一種觸控面板包括聚醯亞胺承載層、多條第一電極、多條第二電極以及絕緣層。第一電極以及第二電極設置在聚醯亞胺承載層上。各第一電極朝第一方向延伸。各第二電極朝第二方向延伸，其中第二方向與第一方向相交。第一電極藉由絕緣層而電性隔離於第二電極，且第一電極位於絕緣層與聚醯亞胺承載層之間。 A touch panel of the present invention includes a polyimide substrate, a plurality of first electrodes, a plurality of second electrodes, and an insulating layer. The first electrode and the second electrode are disposed on the polyimide layer. Each of the first electrodes extends in a first direction. Each of the second electrodes extends in a second direction, wherein the second direction intersects the first direction. The first electrode is electrically isolated from the second electrode by an insulating layer, and the first electrode is located between the insulating layer and the polyimide layer.
在本發明的一實施例中，上述的聚醯亞胺承載層的厚度小於50μm。 In an embodiment of the invention, the polyimine bearing layer has a thickness of less than 50 μm.
在本發明的一實施例中，上述的聚醯亞胺承載層的厚度介於12μm至2μm之間。 In an embodiment of the invention, the polyimine bearing layer has a thickness of between 12 μm and 2 μm.
在本發明的一實施例中，上述的絕緣層的厚度小於50μm。 In an embodiment of the invention, the insulating layer has a thickness of less than 50 μm.
在本發明的一實施例中，上述的觸控面板更包括蓋板，且聚醯亞胺承載層位於第一電極與蓋板之間，或者第一電極位於聚醯亞胺承載層與蓋板之間。 In an embodiment of the invention, the touch panel further includes a cover plate, and the polyimide cover layer is located between the first electrode and the cover plate, or the first electrode is located on the polyimide cover layer and the cover plate. between.
在本發明的一實施例中，上述的各第一電極與各第二電極的至少其中之一的形狀為條狀。 In an embodiment of the invention, at least one of the first electrode and each of the second electrodes has a strip shape.
在本發明的一實施例中，上述的各第一電極包括多個第一電極墊以及多個第一連接部，其中各第一連接部將相鄰兩個第一電極墊沿第一方向串接。各第二電極包括多個第二電極墊以及多個第二連接部，其中各第二連接部將相鄰兩個第二電極墊沿第二方向串接，且第一電極藉由絕緣層整面隔絕於第二電極。 In an embodiment of the invention, each of the first electrodes includes a plurality of first electrode pads and a plurality of first connecting portions, wherein each of the first connecting portions is adjacent to the first two electrode pads in the first direction Pick up. Each of the second electrodes includes a plurality of second electrode pads and a plurality of second connecting portions, wherein each of the second connecting portions connects the adjacent two second electrode pads in series in the second direction, and the first electrode is integrated by the insulating layer The surface is isolated from the second electrode.
在本發明的一實施例中，上述的觸控面板更包括多條第一導線以及多條第二導線。第一導線分別與其中一第一電極電性連接。第二導線分別與其中一第二電極電性連接。聚醯亞胺承載層具有透光區以及遮光區。第一電極與第二電極位於透光區且由透光區延伸至遮光區中。第一導線以及第二導線位於遮光區。絕緣層覆蓋透光區且至少曝露出遮光區中設置有第一導線的區域。 In an embodiment of the invention, the touch panel further includes a plurality of first wires and a plurality of second wires. The first wires are electrically connected to one of the first electrodes. The second wires are electrically connected to one of the second electrodes. The polyimine bearing layer has a light transmitting region and a light blocking region. The first electrode and the second electrode are located in the light transmitting region and extend from the light transmitting region into the light shielding region. The first wire and the second wire are located in the light shielding area. The insulating layer covers the light transmitting region and at least exposes a region in the light shielding region where the first wire is disposed.
在本發明的一實施例中，上述的絕緣層靠近遮光區的邊緣的厚度是漸薄的。 In an embodiment of the invention, the thickness of the insulating layer adjacent to the edge of the light shielding region is tapered.
在本發明的一實施例中，上述的第一導線以及第二導線的材料為金屬、合金或其混合物或奈米金屬絲。 In an embodiment of the invention, the material of the first wire and the second wire is a metal, an alloy or a mixture thereof or a nanowire.
在本發明的一實施例中，上述的各第二導線跨越絕緣層的邊緣，且各第二導線跨越絕緣層的邊緣的部分的線寬大於各第二導線的其餘部分的線寬。 In an embodiment of the invention, each of the second wires spans an edge of the insulating layer, and a line width of a portion of each of the second wires across an edge of the insulating layer is greater than a line width of a remaining portion of each of the second wires.
在本發明的一實施例中，上述的第一電極與第二電極的材料為透明導電材料。 In an embodiment of the invention, the material of the first electrode and the second electrode is a transparent conductive material.
在本發明的一實施例中，上述的透明導電材料為透明金屬氧化物、奈米碳管、奈米金屬絲、導電聚合物、石墨烯或矽烯。 In an embodiment of the invention, the transparent conductive material is a transparent metal oxide, a carbon nanotube, a nanowire, a conductive polymer, graphene or a terpene.
在本發明的一實施例中，上述的第一電極與第二電極的材料包括金屬、合金或其混合物，且各第一電極與各第二電極分別至少由多個彼此連接的網格單元所構成。 In an embodiment of the invention, the material of the first electrode and the second electrode comprises a metal, an alloy or a mixture thereof, and each of the first electrode and each of the second electrodes is respectively composed of at least a plurality of grid cells connected to each other. Composition.
在本發明的一實施例中，上述的網格單元包括多條導線，且各導線的線寬介於0.085μm至10μm之間。 In an embodiment of the invention, the grid unit includes a plurality of wires, and each of the wires has a line width of between 0.085 μm and 10 μm.
在本發明的一實施例中，上述的絕緣層的材料為透明無機材料或透明有機材料。 In an embodiment of the invention, the material of the insulating layer is a transparent inorganic material or a transparent organic material.
基於上述，在本發明上述的實施例中，第一電極以及第二電極設置在厚度可低於50μm的聚醯亞胺承載層上，因此觸控面板的整體厚度可有效地降低。此外，由於觸控面板的絕緣層是連續狀薄膜且是整面地覆蓋於第一電極與第二電極所在的透光區中，其中第一電極與第二電極分別位於絕緣層的相對兩表面上，因此本發明上述的實施例可以避免第一電極與第二電極的相交處因跨線而造成的斷線問題。是以，本發明上述實施例的觸控面板可以相對輕薄且信賴性良好。 Based on the above, in the above-described embodiments of the present invention, the first electrode and the second electrode are disposed on the polyimide-imid bearing layer having a thickness of less than 50 μm, so that the overall thickness of the touch panel can be effectively reduced. In addition, since the insulating layer of the touch panel is a continuous film and covers the entire surface of the first electrode and the second electrode, the first electrode and the second electrode are respectively located on opposite surfaces of the insulating layer. Therefore, the above-described embodiment of the present invention can avoid the disconnection problem caused by the crossing of the intersection of the first electrode and the second electrode. Therefore, the touch panel of the above embodiment of the present invention can be relatively thin and light and has good reliability.
為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。 The above described features and advantages of the invention will be apparent from the following description.
10、20‧‧‧觸控顯示面板 10, 20‧‧‧ touch display panel
100、200、300‧‧‧觸控面板 100, 200, 300‧‧‧ touch panels
110‧‧‧聚醯亞胺承載層 110‧‧‧ Polyimine bearing layer
120、120A‧‧‧第一電極 120, 120A‧‧‧ first electrode
122‧‧‧第一電極墊 122‧‧‧First electrode pad
124‧‧‧第一連接部 124‧‧‧First connection
130、130A‧‧‧第二電極 130, 130A‧‧‧ second electrode
132‧‧‧第二電極墊 132‧‧‧Second electrode pad
134‧‧‧第二連接部 134‧‧‧Second connection
140‧‧‧第一導線 140‧‧‧First wire
150‧‧‧第二導線 150‧‧‧second wire
160、160A、170、IN‧‧‧絕緣層 160, 160A, 170, IN‧‧‧ insulation
180‧‧‧保護層 180‧‧‧protection layer
A1‧‧‧透光區 A1‧‧‧Light transmission area
A2‧‧‧遮光區 A2‧‧‧ shading area
A3、A31、A32‧‧‧接合區 A3, A31, A32‧‧‧ junction area
AD‧‧‧黏著層 AD‧‧‧Adhesive layer
BM‧‧‧裝飾層 BM‧‧‧decorative layer
CG‧‧‧蓋板 CG‧‧‧ cover
D1‧‧‧第一方向 D1‧‧‧ first direction
D2‧‧‧第二方向 D2‧‧‧ second direction
DP‧‧‧顯示面板 DP‧‧‧ display panel
GS‧‧‧承載基板 GS‧‧‧bearing substrate
H110、H150、HCG‧‧‧厚度 H110, H150, HCG‧‧‧ thickness
LD1、LD2‧‧‧線寬 LD1, LD2‧‧‧ line width
S‧‧‧邊緣 S‧‧‧ edge
S110、S120、S134、S160‧‧‧頂面 Top surface of S110, S120, S134, S160‧‧
U‧‧‧觸控感測單元 U‧‧‧Touch sensing unit
A-A’、B-B’‧‧‧剖線 A-A’, B-B’‧‧‧ cut line
圖1A是依照本發明的一實施例的一種觸控面板的上視示意圖。 FIG. 1A is a top view of a touch panel according to an embodiment of the invention.
圖1B是圖1A中的剖線A-A’的第一種剖面示意圖。 Fig. 1B is a first sectional view showing a line A-A' in Fig. 1A.
圖2A是圖1A中的剖線A-A’的第二種剖面示意圖。 Fig. 2A is a second schematic cross-sectional view taken along line A-A' of Fig. 1A.
圖2B是圖1A中的剖線A-A’的第三種剖面示意圖。 Fig. 2B is a third cross-sectional view taken along line A-A' of Fig. 1A.
圖2C是圖1A中的剖線A-A’的第四種剖面示意圖。 Fig. 2C is a fourth schematic cross-sectional view taken along line A-A' of Fig. 1A.
圖3是圖1A中的剖線A-A’的第五種剖面示意圖。 Fig. 3 is a fifth schematic cross-sectional view taken along line A-A' of Fig. 1A.
圖4A至圖4F是圖1A中的觸控面板的製作流程的局部上視示意圖。 4A to 4F are partial top views of the manufacturing process of the touch panel of FIG. 1A.
圖5是圖4F中的剖線B-B’的第一種剖面示意圖。 Fig. 5 is a first sectional view showing a line B-B' in Fig. 4F.
圖6是圖4F中的剖線B-B’的第二種剖面示意圖。 Figure 6 is a second cross-sectional view of the line B-B' in Figure 4F.
圖7是依照本發明的另一實施例的一種觸控面板的局部上視示意圖。 FIG. 7 is a partial top plan view of a touch panel according to another embodiment of the invention.
圖8是依照本發明的一實施例的一種觸控顯示面板的剖面示意圖。 FIG. 8 is a cross-sectional view of a touch display panel according to an embodiment of the invention.
圖9是依照本發明的一實施例的另一種觸控顯示面板的剖面示意圖。 FIG. 9 is a cross-sectional view of another touch display panel according to an embodiment of the invention.
圖10是依照本發明的另一實施例的一種觸控面板的上視示意圖。 FIG. 10 is a top plan view of a touch panel according to another embodiment of the invention.
圖11是依照本發明的又一實施例的一種觸控面板的上視示意圖。 FIG. 11 is a top plan view of a touch panel according to still another embodiment of the present invention.
圖1A是依照本發明的一實施例的一種觸控面板的上視示意圖。圖1B是圖1A中的剖線A-A’的第一種剖面示意圖。圖1A所示的結構僅為示意說明，其中各構件的詳細結構可參照圖1B。請參照圖1A及圖1B，觸控面板100包括一聚醯亞胺承載層(Polyimide carrier layer)110、多條第一電極120、多條第二電極130以及一絕緣層160。其中，聚醯亞胺承載層110的主成分是聚醯亞 胺，且聚醯亞胺中可摻雜其他的無機或有機材料，例如摻雜矽氧化物(SiOx)、矽氮化物(SiNx)，以改變或提升聚醯亞胺承載層110的耐化性或光學性質。舉例而言，在聚醯亞胺中加入SiO2可以降低聚醯亞胺承載層110的複折射率(Birefringence)，其中SiO2的比例約在30%至70%之間。 FIG. 1A is a top view of a touch panel according to an embodiment of the invention. Fig. 1B is a first sectional view showing a line A-A' in Fig. 1A. The structure shown in Fig. 1A is only a schematic illustration, and the detailed structure of each member can be referred to Fig. 1B. Referring to FIG. 1A and FIG. 1B , the touch panel 100 includes a polyimide carrier layer 110 , a plurality of first electrodes 120 , a plurality of second electrodes 130 , and an insulating layer 160 . Wherein, the main component of the polyimine bearing layer 110 is poly An amine, and the polyimine may be doped with other inorganic or organic materials, such as doped lanthanum oxide (SiOx), niobium nitride (SiNx), to change or enhance the chemical resistance of the polyimide layer 110. Or optical properties. For example, the addition of SiO2 to the polyimide can reduce the complex refractive index of the polyimideimide bearing layer 110, wherein the ratio of SiO2 is between about 30% and 70%.
聚醯亞胺承載層110例如為一撓曲性高但剛性低的薄膜，且其厚度H110可小於100μm。在本實施例中，聚醯亞胺承載層110的厚度H110例如小於50μm，較佳是小於25μm，且例如介於12μm至2μm之間。並且，聚醯亞胺承載層110具有一透光區A1以及一遮光區A2。遮光區A2鄰接透光區A1，且例如環繞透光區A1，但本發明不限於此。遮光區A2可設置在透光區A1的至少一側邊。 The polyimideimide bearing layer 110 is, for example, a film having high flexibility but low rigidity, and its thickness H110 may be less than 100 μm. In the present embodiment, the thickness H110 of the polyimideimide bearing layer 110 is, for example, less than 50 μm, preferably less than 25 μm, and for example, between 12 μm and 2 μm. Moreover, the polyimide cover layer 110 has a light transmissive area A1 and a light shielding area A2. The light shielding area A2 is adjacent to the light transmission area A1, and surrounds the light transmission area A1, for example, but the invention is not limited thereto. The light shielding area A2 may be disposed on at least one side of the light transmitting area A1.
第一電極120以及第二電極130設置在聚醯亞胺承載層110上且位於透光區A1，並且第一電極120靠近遮光區A2的一部份以及第二電極130靠近遮光區A2的一部份由透光區A1延伸至遮光區A2中。各第一電極120朝一第一方向D1延伸，而各第二電極130朝一第二方向D2延伸，其中第二方向D2與第一方向D1相交，且第二方向D2與第一方向D1例如彼此垂直，但本發明不限於此。 The first electrode 120 and the second electrode 130 are disposed on the polyimide substrate 110 and located in the light-transmitting region A1, and the first electrode 120 is adjacent to a portion of the light-shielding region A2 and the second electrode 130 is adjacent to the light-shielding region A2. Part of the light-transmissive area A1 extends into the light-shielding area A2. Each of the first electrodes 120 extends toward a first direction D1, and each of the second electrodes 130 extends toward a second direction D2, wherein the second direction D2 intersects the first direction D1, and the second direction D2 and the first direction D1 are, for example, perpendicular to each other However, the invention is not limited thereto.
在本實施例中，各第一電極120包括多個第一電極墊122以及多個第一連接部124，其中各第一連接部124將相鄰兩個第一電極墊122沿第一方向D1串接，在此的第一電極墊122例如是圖 1A中的菱形電極，但不限於此。各第二電極130包括多個第二電極墊132以及多個第二連接部134，其中各第二連接部134將相鄰兩個第二電極墊132沿第二方向D2串接，在此的第二電極墊132例如是圖1A中的菱形電極，但不限於此。第一電極120與第二電極130例如相交於第一連接部124與第二連接部134。需說明的是，本發明不用以限定各第一電極120以及各第二電極130的形狀。舉例而言，在另一實施例中，各第一電極120以及各第二電極130的形狀也可分別為條狀。 In this embodiment, each of the first electrodes 120 includes a plurality of first electrode pads 122 and a plurality of first connecting portions 124, wherein each of the first connecting portions 124 has two adjacent first electrode pads 122 along the first direction D1. In series, the first electrode pad 122 here is, for example, a diagram The rhombic electrode in 1A, but is not limited thereto. Each of the second electrodes 130 includes a plurality of second electrode pads 132 and a plurality of second connecting portions 134, wherein each of the second connecting portions 134 connects the adjacent two second electrode pads 132 in the second direction D2, where The second electrode pad 132 is, for example, a rhombic electrode in FIG. 1A, but is not limited thereto. The first electrode 120 and the second electrode 130 intersect, for example, the first connecting portion 124 and the second connecting portion 134 . It should be noted that the present invention is not limited to the shape of each of the first electrodes 120 and the second electrodes 130. For example, in another embodiment, each of the first electrodes 120 and each of the second electrodes 130 may have a strip shape.
本實施例的觸控面板100可進一步包括多條第一導線140以及多條第二導線150，以進行信號傳輸。詳言之，各第一導線140分別與各第一電極120電性連接。各第二導線150分別與各第二電極130電性連接，其中第一導線140以及第二導線150設置在遮光區A2中。遮光區A2中定義有至少一接合區A3，且第一導線140以及第二導線150集中於接合區A3，以透過與一可撓式印刷電路板(FPC)接合而與未繪示的控制電路電性連接。 The touch panel 100 of this embodiment may further include a plurality of first wires 140 and a plurality of second wires 150 for signal transmission. In detail, each of the first wires 140 is electrically connected to each of the first electrodes 120. Each of the second wires 150 is electrically connected to each of the second electrodes 130, wherein the first wires 140 and the second wires 150 are disposed in the light shielding region A2. At least one bonding area A3 is defined in the light shielding area A2, and the first wire 140 and the second wire 150 are concentrated on the bonding area A3 to be connected to a flexible printed circuit board (FPC) and a control circuit not shown. Electrical connection.
第一電極120及與其對應的第二電極130可組成以互容感應為基礎的觸控感測單元U。詳言之，第一電極120例如為驅動電極，而第二電極130為接收電極。經由第一導線140對第一電極120傳送驅動信號，第一電極120與第二電極130之間形成邊際電場(fringe electric field)，第二電極130感應邊際電場的信號並傳送給控制電路。當導電物體(例如手指)接近或接觸觸控感測單元U時，對應接近或接觸之區域的邊際電場發生變化，第二電極 130接收發生變化的信號且透過第二導線150將信號傳送至控制電路，如此即可偵測目標的位置或移動等，但本發明不限於上述，例如第一電極120也可以為接收電極，而第二電極130為驅動電極。或者，各第一電極120以及各第二電極130也可各自進行驅動及接收信號，而各自構成以自容感應為基礎的觸控感測單元。在上述自電容測量方法或互電容測量方法中，導電物體可隔著一絕緣體(如蓋板CG)，進行觸摸絕緣體外表面的觸控操作。或者，導電物體可接近但不接觸觸控面板100以進行懸浮觸控操作。 The first electrode 120 and the second electrode 130 corresponding thereto can form a touch sensing unit U based on mutual capacitance sensing. In detail, the first electrode 120 is, for example, a driving electrode, and the second electrode 130 is a receiving electrode. A driving signal is transmitted to the first electrode 120 via the first wire 140, a fringe electric field is formed between the first electrode 120 and the second electrode 130, and the second electrode 130 senses a signal of the edge electric field and transmits the signal to the control circuit. When a conductive object (such as a finger) approaches or contacts the touch sensing unit U, the marginal electric field corresponding to the area approaching or contacting changes, the second electrode Receiving the changed signal and transmitting the signal to the control circuit through the second wire 150, so that the position or the movement of the target can be detected, but the present invention is not limited to the above, for example, the first electrode 120 can also be the receiving electrode. The second electrode 130 is a drive electrode. Alternatively, each of the first electrodes 120 and each of the second electrodes 130 may also drive and receive signals, and each constitutes a touch sensing unit based on self-capacitance sensing. In the above self-capacitance measurement method or mutual capacitance measurement method, the conductive object may perform a touch operation on the outer surface of the touch insulation via an insulator (such as the cover CG). Alternatively, the conductive object can be accessed without touching the touch panel 100 for a floating touch operation.
絕緣層160的設置面積可與透光區A1一致或者略小於透光區A1，基本上絕緣層160是整層地覆蓋在第一電極120或第二電極130上，以電性區隔開第一電極120與第二電極130。也就是說，第一電極120藉由絕緣層160整面隔絕於第二電極130。在另一實施例中，絕緣層160的設置範圍也可以大致相同或者略小於聚醯亞胺承載層110面向使用者或顯示器的一表面的面積，在此一情況下，絕緣層160至少曝露出接合區A3，但本發明不限於此。 The insulating layer 160 may be disposed in the same area as the light-transmitting area A1 or slightly smaller than the light-transmitting area A1. The insulating layer 160 is entirely covered on the first electrode 120 or the second electrode 130, and is electrically separated. An electrode 120 and a second electrode 130. That is, the first electrode 120 is isolated from the second electrode 130 by the insulating layer 160. In another embodiment, the insulating layer 160 may also be disposed substantially the same or slightly smaller than the area of the polyimide-immissive carrier layer 110 facing a surface of the user or the display. In this case, the insulating layer 160 is exposed at least. The land A3 is joined, but the invention is not limited thereto.
基於上述，由於第一電極120與第二電極130位於聚醯亞胺承載層110的同一側上，因此本實施例藉由絕緣層160的設置，使得第一電極120藉由絕緣層160而電性隔離於第二電極130。具體地，位於透光區A1中的第一電極120與第二電極130分別設置在絕緣層160的相對兩表面上，其中第一電極120位於絕緣層160與聚醯亞胺承載層110之間。 Based on the above, since the first electrode 120 and the second electrode 130 are located on the same side of the polyimide layer 110, the first electrode 120 is electrically insulated by the insulating layer 160 by the arrangement of the insulating layer 160. Isolating from the second electrode 130. Specifically, the first electrode 120 and the second electrode 130 located in the transparent area A1 are respectively disposed on opposite surfaces of the insulating layer 160, wherein the first electrode 120 is located between the insulating layer 160 and the polyimide layer 110 .
由於觸控面板100的絕緣層160是連續狀薄膜且是整面 地覆蓋於第一電極120與第二電極130所在的透光區A1中，且第一電極120與第二電極130分別位於絕緣層160的相對兩表面上，因此本實施例可以不用形成跨越島狀絕緣圖案的橋接結構，從而避免第一電極120與第二電極130的相交處因跨線而造成的斷線問題。另外，由於第一電極120以及第二電極130設置在厚度H110可低於50μm的聚醯亞胺承載層110上，且厚度H110較佳是介於12μm至2μm之間，因此觸控面板100的整體厚度可有效地降低。是以，觸控面板100可以相對輕薄且信賴性良好。 Since the insulating layer 160 of the touch panel 100 is a continuous film and is a whole surface The first electrode 120 and the second electrode 130 are respectively located on the opposite surfaces of the insulating layer 160, so that the embodiment does not need to form an island across the island. The bridging structure of the insulating pattern avoids the disconnection problem caused by the crossing of the intersection of the first electrode 120 and the second electrode 130. In addition, since the first electrode 120 and the second electrode 130 are disposed on the polyimide substrate 110 having a thickness H110 of less than 50 μm, and the thickness H110 is preferably between 12 μm and 2 μm, the touch panel 100 is The overall thickness can be effectively reduced. Therefore, the touch panel 100 can be relatively thin and light and has good reliability.
在本實施例中，如圖1B所示，各第二電極130凸出於絕緣層160的頂面S160，也就是第二電極130的頂面(參照第二連接部134的頂面S134)與絕緣層160的頂面S160不位在同一水平面上。此外，各第一電極120凸出於聚醯亞胺承載層110的頂面S110，也就是第一電極120的頂面S120與聚醯亞胺承載層110的頂面S110不位在同一水平面上。然而，本發明不限於上述。圖2A是圖1A中的剖線A-A’的第二種剖面示意圖。如圖2A所示，絕緣層160對應第二電極130的位置可形成有多個凹陷，而第二電極130可設置於絕緣層160的凹陷中，使得第二電極130的頂面(參照第二連接部134的頂面S134)與絕緣層160的頂面S160位在同一水平面上，或者第二電極130的頂面也可低於絕緣層160的頂面S160。同理，聚醯亞胺承載層110對應第一電極120的位置也可形成有多個凹陷，而第一電極120可設置於聚醯亞胺承載層110的凹陷中，使得第一電極120的頂面S120與聚醯亞胺承載層110 的頂面S110位在同一水平面上，或者第一電極120的頂面S120也可低於聚醯亞胺承載層110的頂面S110。 In this embodiment, as shown in FIG. 1B, each of the second electrodes 130 protrudes from the top surface S160 of the insulating layer 160, that is, the top surface of the second electrode 130 (refer to the top surface S134 of the second connecting portion 134) and The top surface S160 of the insulating layer 160 is not located on the same horizontal plane. In addition, each of the first electrodes 120 protrudes from the top surface S110 of the polyimide layer 110, that is, the top surface S120 of the first electrode 120 and the top surface S110 of the polyimide layer 110 are not at the same level. . However, the invention is not limited to the above. Fig. 2A is a second schematic cross-sectional view taken along line A-A' of Fig. 1A. As shown in FIG. 2A, the insulating layer 160 may be formed with a plurality of recesses corresponding to the position of the second electrode 130, and the second electrode 130 may be disposed in the recess of the insulating layer 160 such that the top surface of the second electrode 130 (refer to the second The top surface S134) of the connection portion 134 is on the same level as the top surface S160 of the insulating layer 160, or the top surface of the second electrode 130 may be lower than the top surface S160 of the insulating layer 160. Similarly, the polyimine bearing layer 110 may also be formed with a plurality of recesses corresponding to the position of the first electrode 120, and the first electrode 120 may be disposed in the recess of the polyimide layer 110 such that the first electrode 120 Top surface S120 and polyimine bearing layer 110 The top surface S110 is located on the same horizontal surface, or the top surface S120 of the first electrode 120 may also be lower than the top surface S110 of the polyimide layer 110.
在圖1B及圖2A中，第一導線140與第一電極120各自獨立製作，且第一導線140搭接在第一電極120上，但本發明不限於此。圖2B是圖1A中的剖線A-A’的第三種剖面示意圖。如圖2B所示，第一導線140與第一電極120可採用相同的材料且由同一道製程完成。如此，第一導線140與第一電極120之間無明顯搭接痕跡，且第一導線140與第一電極120例如皆位於聚醯亞胺承載層110的凹陷中。由於第一導線140與第一電極120可同一道製程完成，因此相較於圖2A實施例的製造方法，本實施例的製造方法可省略額外製作第一導線140的一道工序。 In FIG. 1B and FIG. 2A, the first wire 140 and the first electrode 120 are separately fabricated, and the first wire 140 is overlapped on the first electrode 120, but the invention is not limited thereto. Fig. 2B is a third cross-sectional view taken along line A-A' of Fig. 1A. As shown in FIG. 2B, the first wire 140 and the first electrode 120 may be made of the same material and completed by the same process. As such, there is no significant overlap between the first wire 140 and the first electrode 120, and the first wire 140 and the first electrode 120 are both located, for example, in the recess of the polyimide layer 110. Since the first wire 140 and the first electrode 120 can be completed in the same process, the manufacturing method of the embodiment can omit an additional process of fabricating the first wire 140 compared to the manufacturing method of the embodiment of FIG. 2A.
第一電極120與第一導線140的材料可皆採用金屬或金屬合金，且可藉由形成線寬例如介於0.08μm至8μm之間的網格單元以提升光穿透率。金屬材料例如為銀(Ag)、鋁(Al)、銅(Cu)、鉻(Cr)、鈦(Ti)、鉬(Mo)、鈮(Nb)、釹(Nd)之其中至少一者。在一實施例中，第一電極120與第一導線140也可以是上述材料之複合疊層或上述材料之合金所構成。複合疊層例如是鉬/鋁/鉬、鉬鈮合金/鋁釹合金/氧化鉬或氧化銦錫/銀/氧化銦錫的三層結構，但不以此為限。此外，第一電極120靠近人眼的表面可以經過霧化處理，例如採用Mo/Al/MoOx的結構。氧化處理後的MoOx層可以降低金屬的反射率，從而降低第一電極120的圖案明顯度。所述霧化處理可以包括氧化處理、氮化處理或其結合。在上述Mo/Al/MoOx 的結構中，導電層為Mo層以及Al層的堆疊層，而用以降低反射率的霧化層為MoOx層，但本發明不用以限定導電層以及霧化層的層數或材料。在另一實施例中，導電層可以是由金屬、金屬合金或其混合物所構成的單層結構，而霧化層可以是導電層的氧化層、氮化層或氮氧化層。以下的實施例皆可適用此一型態，於下便不再贅述。 The material of the first electrode 120 and the first wire 140 may be metal or metal alloy, and the light transmittance may be improved by forming a grid unit having a line width of, for example, between 0.08 μm and 8 μm. The metal material is, for example, at least one of silver (Ag), aluminum (Al), copper (Cu), chromium (Cr), titanium (Ti), molybdenum (Mo), niobium (Nb), and niobium (Nd). In one embodiment, the first electrode 120 and the first wire 140 may also be a composite laminate of the above materials or an alloy of the above materials. The composite laminate is, for example, a three-layer structure of molybdenum/aluminum/molybdenum, molybdenum-niobium alloy/aluminum-niobium alloy/molybdenum oxide or indium tin oxide/silver/indium tin oxide, but is not limited thereto. Further, the surface of the first electrode 120 close to the human eye may be subjected to atomization treatment, for example, a structure of Mo/Al/MoO x . The oxidized MoO x layer can reduce the reflectance of the metal, thereby reducing the pattern visibility of the first electrode 120. The atomization treatment may include an oxidation treatment, a nitridation treatment, or a combination thereof. In the above structure of Mo/Al/MoO x , the conductive layer is a stacked layer of the Mo layer and the Al layer, and the atomized layer for reducing the reflectance is a MoO x layer, but the present invention does not need to define the conductive layer and atomize The number of layers or materials. In another embodiment, the conductive layer may be a single layer structure composed of a metal, a metal alloy, or a mixture thereof, and the atomization layer may be an oxide layer, a nitride layer, or an oxynitride layer of the conductive layer. The following embodiments are applicable to this type of configuration, and will not be described again.
同樣地，第一導線140靠近人眼的表面也可以經過霧化處理，如此一來，可避免使用者側視時因瞧見第一導線140而對視覺效果造成影響。同理，第二電極130與第二導線150的材料也可採用金屬或金屬合金，且第二電極130與第二導線150也可形成線寬例如介於0.08μm至8μm之間的網格單元，並藉由霧化處理第二電極130與第二導線150靠近人眼的表面，以降低第二電極130與第二導線150對視覺效果造成的影響。 Similarly, the surface of the first wire 140 close to the human eye can also be atomized, so that the visual effect can be avoided when the user views the first wire 140 when viewed from the side. Similarly, the material of the second electrode 130 and the second wire 150 may also be a metal or a metal alloy, and the second electrode 130 and the second wire 150 may also form a grid unit having a line width of, for example, between 0.08 μm and 8 μm. And the second electrode 130 and the second wire 150 are adjacent to the surface of the human eye by atomization to reduce the influence of the second electrode 130 and the second wire 150 on the visual effect.
圖2C是圖1A中的剖線A-A’的第四種剖面示意圖。如圖2C所示，觸控面板在圖2A的架構下可更包括另一絕緣層170。絕緣層170設置在聚醯亞胺承載層110的頂面S110，且第一電極120可設置在絕緣層170的凹陷中，使得第一電極120的頂面S120與絕緣層170的頂面S170位在同一水平面上，或者第一電極120的頂面S120也可低於絕緣層170的頂面S170。 Fig. 2C is a fourth schematic cross-sectional view taken along line A-A' of Fig. 1A. As shown in FIG. 2C, the touch panel may further include another insulating layer 170 under the structure of FIG. 2A. The insulating layer 170 is disposed on the top surface S110 of the polyimide layer 110, and the first electrode 120 may be disposed in the recess of the insulating layer 170 such that the top surface S120 of the first electrode 120 and the top surface S170 of the insulating layer 170 At the same level, the top surface S120 of the first electrode 120 may also be lower than the top surface S170 of the insulating layer 170.
如圖1B至圖2C所示，觸控面板100還可進一步包括一蓋板CG以及一黏著層AD，其中蓋板CG透過黏著層AD而與聚醯亞胺承載層110接合。所述蓋板CG是指具有高機械強度以保護 (例如防刮)所覆蓋之元件的硬性材質，或是具有高韌性的可撓曲塑料薄膜。所述高機械強度之硬性材質例如是硬度高於1000Hv的材質。為避免蓋板CG遮蔽來自顯示面板的顯示光束，蓋板CG的材質較佳為透明材質。所述透明材質泛指一般具備高穿透率的材質，而不用以限定穿透率為100%之材質。舉例而言，蓋板CG可以是強化玻璃、塑膠、藍寶石基板或陶瓷基板。所述強化玻璃可以是經過化學或是物理強化處理的玻璃。所述塑膠可以是由聚对苯二甲酸乙二酯(Polyethylene terephthalate,PET)、聚丙烯(polypropylene,PP)、聚乙烯(polyethylene,PE)、聚環烯烴聚合物(Cyclo olefin polymer,COP)、聚甲基丙烯酸甲酯(methyl methacrylate,PMMA)、聚碳酸酯(polycarbonate,PC)或聚亞醯胺(Polyimide,PI)製作而成的單層板材或上述至少兩種單層板材堆疊而成的複合層板材。蓋板CG的厚度可介於0.25毫米至2毫米之間。此外，蓋板CG的形狀可為平面形狀、曲面形狀、或前述形狀的組合。舉例而言，蓋板CG可以是2.5D或3D蓋板。 As shown in FIG. 1B to FIG. 2C , the touch panel 100 further includes a cover CG and an adhesive layer AD, wherein the cover CG is bonded to the polyimide cover layer 110 through the adhesive layer AD. The cover plate CG refers to having high mechanical strength to protect (For example, scratch-resistant) The hard material of the component covered, or the flexible plastic film with high toughness. The hard material having high mechanical strength is, for example, a material having a hardness higher than 1000 Hv. In order to prevent the cover CG from shielding the display beam from the display panel, the material of the cover CG is preferably a transparent material. The transparent material generally refers to a material that generally has a high transmittance, and is not used to define a material having a transmittance of 100%. For example, the cover CG may be a tempered glass, plastic, sapphire substrate or ceramic substrate. The tempered glass may be a glass that has been chemically or physically strengthened. The plastic may be made of polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), Cycloolefin polymer (COP), a single-layer sheet made of methyl methacrylate (PMMA), polycarbonate (PC) or polyimide (PI) or a stack of at least two single-layer sheets Composite layer sheet. The thickness of the cover plate CG may be between 0.25 mm and 2 mm. Further, the shape of the cover plate CG may be a planar shape, a curved shape, or a combination of the aforementioned shapes. For example, the cover CG can be a 2.5D or 3D cover.
蓋板CG的外表面為操作面，所述操作面即進行觸控操作時觸控面板靠近使用者的表面。在一實施例中，可選擇性地於操作面上設置防污鍍膜(Anti-Stain Coating)。另外，觸控面板100還可進一步包括一裝飾層BM。裝飾層BM例如設置在蓋板CG上且對應遮光區A2設置。進一步而言，裝飾層BM覆蓋遮光區A2並曝露出透光區A1。裝飾層BM例如由抗光材質所構成。所述抗光材質定義為光通過其介面會發生損失的材質，以用於遮蔽觸控面 板100中不欲被看到的元件，如第一導線140、第二導線150或其他未繪示的線路、電路板等。裝飾層BM的材料可包括陶瓷、類鑽碳、陶瓷、有機材料、有機材料與無機材料之混合物、有機-無機混成化合物或其複合疊層。裝飾層BM可為單一種材質的單層結構、多層堆疊結構或多種材質的多層堆疊結構。此外，裝飾層BM的厚度可以是介於0.5微米至50微米之間，但不以此為限。當裝飾層BM為多層堆疊結構時，各層結構的顏色可以不相同。舉例而言，顯露於外側而被使用者看到的裝飾層可為淺色(例如白色)，淺色的裝飾層可再疊以深色的裝飾層(例如黑色)提高其遮光性，但不以此為限。 The outer surface of the cover CG is an operation surface, and the operation surface is a surface of the touch panel close to the user when the touch operation is performed. In an embodiment, an anti-stain coating may be selectively disposed on the operation surface. In addition, the touch panel 100 may further include a decorative layer BM. The decorative layer BM is disposed, for example, on the cover CG and is disposed corresponding to the light shielding area A2. Further, the decorative layer BM covers the light shielding area A2 and exposes the light transmitting area A1. The decorative layer BM is composed of, for example, a light-resistant material. The light-resistant material is defined as a material that loses light through its interface, and is used to shield the touch surface. Elements that are not to be seen in the board 100, such as the first wire 140, the second wire 150, or other lines, boards, etc., not shown. The material of the decorative layer BM may include ceramics, diamond-like carbon, ceramics, organic materials, a mixture of organic materials and inorganic materials, an organic-inorganic hybrid compound or a composite laminate thereof. The decorative layer BM may be a single layer structure of a single material, a multilayer stack structure or a multilayer stack structure of a plurality of materials. In addition, the thickness of the decorative layer BM may be between 0.5 micrometers and 50 micrometers, but not limited thereto. When the decorative layer BM is a multi-layer stacked structure, the color of each layer structure may be different. For example, the decorative layer exposed on the outside and seen by the user may be light color (for example, white), and the light decorative layer may be further laminated with a dark decorative layer (for example, black) to improve the light blocking property, but not This is limited to this.
本實施例的裝飾層BM設置在蓋板CG的內表面上，且裝飾層BM與聚醯亞胺承載層110位於蓋板CG的同一側，但本發明不限於此。在另一實施例中，裝飾層BM也可位於蓋板CG的外表面上而與聚醯亞胺承載層110位於蓋板CG的相對兩側。 The decorative layer BM of the present embodiment is disposed on the inner surface of the cap plate CG, and the decorative layer BM and the polyimideimide bearing layer 110 are located on the same side of the cap plate CG, but the invention is not limited thereto. In another embodiment, the decorative layer BM may also be located on the outer surface of the cover plate CG and on the opposite sides of the cover plate CG from the polyimide layer.
如圖1B至圖2C所示，接合後的第一電極120、第二電極130、第一導線140、第二導線150、絕緣層160以及裝飾層BM位於聚醯亞胺承載層110與蓋板CG之間，但不限於此。圖3是圖1A中的剖線A-A’的第五種剖面示意圖。如圖3所示，蓋板CG也可透過黏著層AD而與聚醯亞胺承載層110未設置膜層(如第一電極120、第二電極130、第一導線140、第二導線150以及絕緣層160)的表面接合，使得接合後的聚醯亞胺承載層110位於蓋板CG與第一電極120之間、蓋板CG與絕緣層160之間、蓋板CG與第 一導線140之間、以及蓋板CG與第二導線150之間。在又一實施例中，當聚醯亞胺承載層110本身具有黏性時，亦可省略黏著層AD的設置。另外，觸控面板還可進一步設置一保護層180，使第一電極120、第二電極130、第一導線140、第二導線150以及絕緣層160位於聚醯亞胺承載層110與保護層180之間。所述保護層180的材料可以是透明無機材料或透明有機材料。無機材料例如是二氧化矽、鈦的氧化物、鈮的氧化物、矽的氧化物、矽的氮化物、上述至少兩者的混合物。或者，保護層180也可以是上述至少兩種無機材料層的堆疊層。有機材料可包括矽氧烷化物(SiORx，其中R為烷基)、聚醯亞胺(Polyimide，PI)、聚丙烯(polypropylene，PP)、聚乙烯(polyethylene，PE)、聚碳酸酯(polycarbonate，PC)、聚甲基丙烯酸甲酯(methyl methacrylate，PMMA)、聚醚酮(polyether ketone，PEK)、環烯烴共聚物(cyclic olefin copolymer，COC)或是樹脂。再者，前述的絕緣層160的材料也可選擇如保護層的材料。 As shown in FIG. 1B to FIG. 2C, the bonded first electrode 120, the second electrode 130, the first wire 140, the second wire 150, the insulating layer 160, and the decorative layer BM are located on the polyimide layer 110 and the cover plate. Between CG, but not limited to this. Fig. 3 is a fifth schematic cross-sectional view taken along line A-A' of Fig. 1A. As shown in FIG. 3, the cover plate CG can also pass through the adhesive layer AD without a film layer (such as the first electrode 120, the second electrode 130, the first wire 140, the second wire 150, and the polyimide layer 110). The surface of the insulating layer 160) is bonded such that the bonded polyimide layer 110 is located between the cover CG and the first electrode 120, between the cover CG and the insulating layer 160, and the cover CG and the first Between one of the wires 140 and between the cover CG and the second wire 150. In still another embodiment, when the polyimide layer 110 is inherently viscous, the setting of the adhesive layer AD may be omitted. In addition, the touch panel may further be provided with a protective layer 180 such that the first electrode 120, the second electrode 130, the first conductive line 140, the second conductive line 150, and the insulating layer 160 are located on the polyimide layer 110 and the protective layer 180. between. The material of the protective layer 180 may be a transparent inorganic material or a transparent organic material. The inorganic material is, for example, cerium oxide, an oxide of titanium, an oxide of cerium, an oxide of cerium, a nitride of cerium, or a mixture of at least two of the above. Alternatively, the protective layer 180 may also be a stacked layer of at least two inorganic material layers described above. The organic material may include a decyl oxyalkylate (SiORx, wherein R is an alkyl group), polyimide (PI), polypropylene (PP), polyethylene (PE), polycarbonate (polycarbonate, PC), methyl methacrylate (PMMA), polyether ketone (PEK), cyclic olefin copolymer (COC) or resin. Furthermore, the material of the foregoing insulating layer 160 may also be selected as a material of the protective layer.
圖4A至圖4F是圖1A中的觸控面板的製作流程的局部上視示意圖。圖5是圖4F中的剖線B-B’的第一種剖面示意圖。請參照圖4A及圖4B，由於聚醯亞胺承載層110為一撓曲性高但剛性低的薄膜，因此本實施例將聚醯亞胺承載層110先形成於一承載基板GS上，例如將可撓性材料(如聚醯亞胺)塗佈或貼合於承載基板GS上，以利後續製程。在觸控面板的製作流程中，承載基板GS例如作為承載之用，且在觸控面板製作完成後，承載基板GS 可選擇性地被移除。承載基板GS可以是具有高機械強度的硬性材質，或是具有高韌性的可撓曲塑料薄膜。舉例而言，承載基板GS可以是玻璃基板、不鏽鋼基板、塑膠基板、藍寶石基板或陶瓷基板等。 4A to 4F are partial top views of the manufacturing process of the touch panel of FIG. 1A. Fig. 5 is a first sectional view showing a line B-B' in Fig. 4F. Referring to FIG. 4A and FIG. 4B, since the polyimide substrate 110 is a film with high flexibility and low rigidity, the polyimide layer 110 is formed on a carrier substrate GS in this embodiment, for example. A flexible material such as polyimide is coated or bonded to the carrier substrate GS for subsequent processing. In the manufacturing process of the touch panel, the carrier substrate GS is used as a carrier, for example, and after the touch panel is completed, the carrier substrate GS is mounted. Can be selectively removed. The carrier substrate GS may be a hard material having high mechanical strength or a flexible plastic film having high toughness. For example, the carrier substrate GS may be a glass substrate, a stainless steel substrate, a plastic substrate, a sapphire substrate, a ceramic substrate, or the like.
接著，請參照圖4C至圖4E，於聚醯亞胺承載層110上依序地形成第一電極120、絕緣層160以及第二電極130。第一電極120以及第二電極130的材料可以選用不同的導電材料、或選擇相同的導電材料。舉例而言，第一電極120以及第二電極130的材料可分別採用透明導電材料，如透明金屬氧化物、奈米碳管(Carbon Nanotube)、奈米金屬絲(例如奈米銀絲、奈米銅絲)、導電聚合物(conducting polymers)、石墨烯(graphene)、矽烯或其他合適的透明導電材料。所述透明金屬氧化物例如包括銦錫氧化物、銦鋅氧化物、鋁錫氧化物、鋁鋅氧化物、銦鍺鋅氧化物或其他金屬氧化物。所述的透明的材料是指透光度為80%以上的材料。另一方面，第一電極120以及第二電極130的材料也可分別採用不透明的金屬、合金或其混合物，例如Mo/Al/Mo、銅等，或是同時包括不透明的金屬材料與透明導電材料。 Next, referring to FIG. 4C to FIG. 4E, the first electrode 120, the insulating layer 160, and the second electrode 130 are sequentially formed on the polyimide substrate 110. The materials of the first electrode 120 and the second electrode 130 may be selected from different conductive materials or selected from the same conductive materials. For example, the materials of the first electrode 120 and the second electrode 130 may respectively be transparent conductive materials, such as transparent metal oxide, carbon nanotubes, nanowires (eg, nano silver wire, nanometer). Copper wire), conducting polymers, graphene, terpenes or other suitable transparent conductive materials. The transparent metal oxide includes, for example, indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium antimony zinc oxide or other metal oxide. The transparent material refers to a material having a light transmittance of 80% or more. On the other hand, the materials of the first electrode 120 and the second electrode 130 may also be opaque metals, alloys or mixtures thereof, such as Mo/Al/Mo, copper, etc., or both opaque metal materials and transparent conductive materials. .
當第一電極120以及第二電極130的材料採用透明導電材料時，各第一電極120以及各第二電極130的型態可為連續狀薄膜。另一方面，當第一電極120以及第二電極130的材料包括會遮光的材料如不透明的金屬、合金或其混合物時，各第一電極120以及各第二電極130可分別藉由形成多個彼此連接的網格單 元(未繪示)，以提升第一電極120以及第二電極130的光穿透率，其中網格單元包括多條導線，且各導線的線寬例如介於0.085μm至8μm之間，以降低人眼的可視性。並且，第一電極120以及第二電極130靠近人眼的表面可以經過霧化處理，例如採用Mo/Al/MoOx的結構，以降低金屬的反射率，從而降低第一電極120以及第二電極130的圖案明顯度。 When the material of the first electrode 120 and the second electrode 130 is a transparent conductive material, the shape of each of the first electrode 120 and each of the second electrodes 130 may be a continuous film. On the other hand, when the material of the first electrode 120 and the second electrode 130 includes a material that blocks light, such as an opaque metal, an alloy, or a mixture thereof, each of the first electrodes 120 and each of the second electrodes 130 may be formed by multiple Grid cells (not shown) connected to each other to increase the light transmittance of the first electrode 120 and the second electrode 130, wherein the grid unit includes a plurality of wires, and the wire width of each wire is, for example, between 0.085 μm to Between 8μm to reduce the visibility of the human eye. Moreover, the surface of the first electrode 120 and the second electrode 130 close to the human eye may be subjected to atomization treatment, for example, a structure of Mo/Al/MoO x to reduce the reflectance of the metal, thereby reducing the first electrode 120 and the second electrode. The pattern of 130 is noticeable.
在另一實施例中，各第一電極120以及各第二電極130的形狀也可分別為條狀。並且，各第一電極120以及各第二電極130可分別藉由形成多個彼此連接的網格單元。因為網格單元的導線的線寬夠細，因此可以降低第一電極120與第二電極130的重疊面積，從而降低兩者相交處的垂直耦合電容，並提升觸控靈敏度。 In another embodiment, each of the first electrodes 120 and each of the second electrodes 130 may also have a strip shape. Moreover, each of the first electrodes 120 and each of the second electrodes 130 can form a plurality of grid cells connected to each other by respectively. Since the line width of the wires of the grid unit is thin enough, the overlapping area of the first electrode 120 and the second electrode 130 can be reduced, thereby reducing the vertical coupling capacitance at the intersection of the two, and improving the touch sensitivity.
絕緣層160的材料可以是透明無機材料或透明有機材料。無機材料例如是二氧化矽、鈦的氧化物、鈮的氧化物、矽的氧化物、矽的氮化物、上述至少兩者的混合物。或者，絕緣層160也可以是上述至少兩種無機材料層的堆疊層。另外，有機材料可包括矽氧烷化物(SiORx，其中R為烷基)、聚醯亞胺(Polyimide；PI)、聚丙烯(polypropylene，PP)、聚乙烯(polyethylene，PE)、聚碳酸酯(polycarbonate，PC)、聚甲基丙烯酸甲酯(methyl methacrylate，PMMA)、聚醚酮(polyether ketone，PEK)、環烯烴共聚物(cyclic olefin copolymer，COC)、光學膠、熱固膠或是樹脂。若依材料區分，樹脂例如可以是壓克力系或環氧系樹脂。若依特 性區分則樹脂可以是熱塑、熱固性或感光性樹脂，但不以此為限。在本實施例中，絕緣層160的材料例如為聚醯亞胺，且絕緣層160的厚度例如小於100μm，較佳是小於50μm。 The material of the insulating layer 160 may be a transparent inorganic material or a transparent organic material. The inorganic material is, for example, cerium oxide, an oxide of titanium, an oxide of cerium, an oxide of cerium, a nitride of cerium, or a mixture of at least two of the above. Alternatively, the insulating layer 160 may also be a stacked layer of at least two inorganic material layers described above. In addition, the organic material may include a decyl oxyalkylate (SiORx, wherein R is an alkyl group), polyimide (PI), polypropylene (PP), polyethylene (PE), polycarbonate ( Polycarbonate, PC), methyl methacrylate (PMMA), polyether ketone (PEK), cyclic olefin copolymer (COC), optical adhesive, thermosetting adhesive or resin. The resin may be, for example, an acrylic or epoxy resin, depending on the material. Joght The resin may be thermoplastic, thermosetting or photosensitive resin, but not limited thereto. In the present embodiment, the material of the insulating layer 160 is, for example, polyimide, and the thickness of the insulating layer 160 is, for example, less than 100 μm, preferably less than 50 μm.
請參照圖4F，於聚醯亞胺承載層110上形成第一導線140以及第二導線150。第一導線140以及第二導線150的材料例如採用導電性佳的金屬、合金或其混合物，且其型態不限於圖4F所繪示的條狀導線。舉例而言，第一導線140以及第二導線150也可形成前述線寬介於0.08μm至8μm之間的網格單元。以下的實施例皆可適用此一型態，於下便不再贅述。在一實施例中，第一導線140以及第二導線150的材料亦可採用前述的透明導電材料。舉例而言，第一導線140以及第二導線15的材料可以是奈米金屬絲(例如奈米銀絲、奈米銅絲)，且第一導線140以及第二導線150例如是藉由將可轉印透明導電膜(Transparent Conductive Transfer Film，TCTF)轉印於聚醯亞胺承載層110上，再藉由微影蝕刻等方式圖案化而成。 Referring to FIG. 4F, a first wire 140 and a second wire 150 are formed on the polyimide substrate 110. The material of the first wire 140 and the second wire 150 is, for example, a metal, an alloy or a mixture thereof which is excellent in conductivity, and the type thereof is not limited to the strip wire shown in FIG. 4F. For example, the first wire 140 and the second wire 150 may also form a grid unit having a line width of between 0.08 μm and 8 μm. The following embodiments are applicable to this type of configuration, and will not be described again. In an embodiment, the material of the first wire 140 and the second wire 150 may also be a transparent conductive material as described above. For example, the material of the first wire 140 and the second wire 15 may be a nano wire (eg, nano silver wire, nano copper wire), and the first wire 140 and the second wire 150 are, for example, Transfer conductive film (Transferent Conductive Transfer Film, TCTF) is transferred onto the polyimide substrate 110 and patterned by photolithography or the like.
在本實施例中，第一導線140以及第二導線150是在同一道製程步驟中形成，但本發明不限於此。舉例而言，在另一實施例中，第一導線140也可形成於第一電極120之後且形成於絕緣層160之前，而第二導線150形成於第二電極130之後。或者，第一電極120與第一導線140可由同一道製程步驟形成，而第二電極130與第二導線150由同一道製程步驟形成，以進一步降低製程道數。 In the present embodiment, the first wire 140 and the second wire 150 are formed in the same process step, but the invention is not limited thereto. For example, in another embodiment, the first wire 140 may also be formed after the first electrode 120 and formed before the insulating layer 160 , and the second wire 150 is formed after the second electrode 130 . Alternatively, the first electrode 120 and the first wire 140 may be formed by the same process step, and the second electrode 130 and the second wire 150 are formed by the same process step to further reduce the number of process tracks.
圖5是圖4F中的剖線B-B’的第一種剖面示意圖。在此一實施例中，除了圖4F上方所標示的遮光區A2區域之外，絕緣層160是涵蓋所有聚醯亞胺承載層110的區域，但並不以此為限。絕緣層160所涵蓋的區域可以由設計者自行調整，只要能夠達到第一電極120與第二電極130的絕緣效果，都在本發明的保護範圍。由於第二導線150形成於絕緣層160之後，因此第二導線150需橫越絕緣層160靠近遮光區A2的邊緣S，以與對應的第二電極130連接。為降低第二導線150在邊緣S斷線的機率，本實施例可增加第二導線150的厚度H150，但本發明不限於此。圖6是圖4F中的剖線B-B’的第二種剖面示意圖。圖7是依照本發明的另一實施例的一種觸控面板的局部上視示意圖。如圖6所示，上述降低斷線機率的方法也可以是藉由使絕緣層160靠近遮光區A2的邊緣S的厚度是漸薄的。或者，也可藉由加寬各第二導線150的局部以降低斷線機率。如圖7所示，各第二導線150跨越絕緣層160的邊緣S的部分的線寬LD1大於各第二導線150的其餘部分的線寬LD2，以降低斷線機率。在又一實施例中，也可將各第二導線150整條加寬，以降低斷線機率。 Fig. 5 is a first sectional view showing a line B-B' in Fig. 4F. In this embodiment, the insulating layer 160 is a region covering all the polyimide-bearing layer 110 except for the region of the light-shielding region A2 indicated in FIG. 4F, but is not limited thereto. The area covered by the insulating layer 160 can be adjusted by the designer as long as the insulation effect of the first electrode 120 and the second electrode 130 can be achieved, and is within the protection scope of the present invention. Since the second wire 150 is formed behind the insulating layer 160, the second wire 150 needs to traverse the insulating layer 160 near the edge S of the light shielding area A2 to be connected to the corresponding second electrode 130. In order to reduce the probability of the second wire 150 being broken at the edge S, the present embodiment may increase the thickness H150 of the second wire 150, but the invention is not limited thereto. Figure 6 is a second cross-sectional view of the line B-B' in Figure 4F. FIG. 7 is a partial top plan view of a touch panel according to another embodiment of the invention. As shown in FIG. 6, the above method of reducing the probability of disconnection may be such that the thickness of the edge S of the insulating layer 160 near the light shielding area A2 is tapered. Alternatively, the probability of disconnection can also be reduced by widening the portion of each of the second wires 150. As shown in FIG. 7, the line width LD1 of the portion of each of the second wires 150 spanning the edge S of the insulating layer 160 is larger than the line width LD2 of the remaining portion of each of the second wires 150 to reduce the probability of wire breakage. In still another embodiment, each of the second wires 150 may also be widened to reduce the probability of wire breakage.
在完成第一導線140以及第二導線150的製作之後，可藉由轉貼完成圖1B中的觸控面板100。具體地，在完成第一導線140以及第二導線150的製作之後，可透過黏著層AD而與蓋板CG接合，再移除承載基板GS(使聚醯亞胺承載層110與承載基板GS分離)。然而，本發明不限於上述。圖8是依照本發明的一實 施例的一種觸控顯示面板的剖面示意圖。圖9是依照本發明的一實施例的另一種觸控顯示面板的剖面示意圖。 After the fabrication of the first wire 140 and the second wire 150 is completed, the touch panel 100 in FIG. 1B can be completed by reposting. Specifically, after the fabrication of the first wire 140 and the second wire 150 is completed, the cover layer CG can be bonded through the adhesive layer AD, and then the carrier substrate GS is removed (the polyimine bearing layer 110 is separated from the carrier substrate GS). ). However, the invention is not limited to the above. Figure 8 is a representation of the present invention A schematic cross-sectional view of a touch display panel of the embodiment. FIG. 9 is a cross-sectional view of another touch display panel according to an embodiment of the invention.
請參照圖8，在完成圖4F中第一導線140以及第二導線150的製作之後，觸控面板靠近第一導線140以及第二導線150的一側可先與一未繪示的離型膜貼合，再移除圖1A中的承載基板GS，並將聚醯亞胺承載層110轉貼至一目標載具，如顯示面板DP上。在此，聚醯亞胺承載層110如果具有黏性則可直接轉貼至顯示面板DP。聚醯亞胺承載層110如果不具有黏性則可透過一黏著層(未繪示)貼至顯示面板DP。接著，移除離型膜，並透過黏著層AD而與蓋板CG接合。如此，則可形成一觸控顯示面板10。 Referring to FIG. 8 , after the fabrication of the first wire 140 and the second wire 150 in FIG. 4F is completed, the side of the touch panel adjacent to the first wire 140 and the second wire 150 may be first connected to an unillustrated release film. After bonding, the carrier substrate GS in FIG. 1A is removed, and the polyimide substrate 110 is transferred to a target carrier, such as the display panel DP. Here, the polyimine bearing layer 110 can be directly transferred to the display panel DP if it has adhesiveness. The polyimide substrate 110 can be attached to the display panel DP through an adhesive layer (not shown) if it is not adhesive. Next, the release film is removed and bonded to the cap plate CG through the adhesive layer AD. Thus, a touch display panel 10 can be formed.
在另一實施例中，圖1A中的承載基板GS也可以是顯示面板DP中的元件基板，如液晶顯示面板的對向基板或有機發光二極體顯示面板的封裝蓋板等。如此，在完成圖4F中第一導線140以及第二導線150的製作之後，可以不用移除承載基板GS，而可接續顯示面板的後續製程。以液晶顯示面板為例，在完成圖4F中第一導線140以及第二導線150的製作之後，可接續將元件基板與一主動元件陣列基板接合，並於元件基板與主動元件陣列基板之間形成一顯示介質，以完成觸控顯示面板的製作。或者，承載基板GS可以是顯示面板DP，而觸控面板直接製作於顯示面板DP上。 In another embodiment, the carrier substrate GS in FIG. 1A may also be an element substrate in the display panel DP, such as an opposite substrate of the liquid crystal display panel or a package cover of the organic light emitting diode display panel. Thus, after the fabrication of the first wire 140 and the second wire 150 in FIG. 4F is completed, the subsequent process of the display panel can be continued without removing the carrier substrate GS. Taking the liquid crystal display panel as an example, after the fabrication of the first wire 140 and the second wire 150 in FIG. 4F is completed, the component substrate can be successively bonded to an active device array substrate, and formed between the component substrate and the active device array substrate. A display medium is used to complete the production of the touch display panel. Alternatively, the carrier substrate GS may be the display panel DP, and the touch panel is directly fabricated on the display panel DP.
再者，如圖9所示，承載基板GS也可以作為上述蓋板之用，且承載基板GS上可形成有上述用以遮蔽不透光元件的裝飾層 BM。並且，裝飾層BM以及承載基板GS上可進一步覆蓋有一絕緣層IN。絕緣層IN適於提供一平坦的承載面，供聚醯亞胺承載層110設置於其上。在完成圖4F中第一導線140以及第二導線150的製作之後，可以不用移除承載基板GS，而可透過黏著層AD將觸控面板靠近第一導線140以及第二導線150的一側貼附於顯示面板DP上，即完成觸控顯示面板20的製作。如此，聚醯亞胺承載層110位於第一電極120與蓋板(即承載基板GS)之間。 Furthermore, as shown in FIG. 9, the carrier substrate GS can also be used as the cover plate, and the decorative layer for shielding the opaque element can be formed on the carrier substrate GS. BM. Moreover, the decorative layer BM and the carrier substrate GS may be further covered with an insulating layer IN. The insulating layer IN is adapted to provide a flat bearing surface on which the polyimide substrate 110 is disposed. After the fabrication of the first wire 140 and the second wire 150 in FIG. 4F is completed, the carrier substrate GS may not be removed, and the touch panel may be attached to the side of the first wire 140 and the second wire 150 through the adhesive layer AD. Attached to the display panel DP, the production of the touch display panel 20 is completed. As such, the polyimide substrate 110 is located between the first electrode 120 and the cover (ie, the carrier substrate GS).
在上述實施例中，絕緣層160僅覆蓋透光區A1且曝露出遮光區A2中第一導線140以及第二導線150的末端集中區(即圖1A中的接合區A3)，但本發明不限於此。圖10是依照本發明的另一實施例的一種觸控面板的上視示意圖。請參照圖10，觸控面板200大致相同於觸控面板100，且相同的元件以相同的標號表示，於此不再贅述。主要差異在於，本實施例的絕緣層160A僅曝露出遮光區A2中設置有第一導線140的區域。詳言之，本實施例的絕緣層160A遮蔽遮光區A2中第二導線150所在的區域。由於第二導線150設置在絕緣層160A上，因此絕緣層160A這樣的設計不會影響第二導線150與訊號傳遞線路的接合。並且，這樣的設計還可避免圖5中第二導線150因需橫越絕緣層160A的邊緣S而造成的斷線問題。 In the above embodiment, the insulating layer 160 covers only the light-transmitting area A1 and exposes the first conductive line 140 of the light-shielding area A2 and the end concentration area of the second conductive line 150 (ie, the joint area A3 in FIG. 1A), but the present invention does not Limited to this. FIG. 10 is a top plan view of a touch panel according to another embodiment of the invention. Referring to FIG. 10 , the touch panel 200 is substantially the same as the touch panel 100 , and the same components are denoted by the same reference numerals and will not be described again. The main difference is that the insulating layer 160A of the present embodiment exposes only the region in which the first conductive line 140 is disposed in the light-shielding region A2. In detail, the insulating layer 160A of the present embodiment shields the area where the second wire 150 is located in the light shielding area A2. Since the second wire 150 is disposed on the insulating layer 160A, the design of the insulating layer 160A does not affect the bonding of the second wire 150 to the signal transmission line. Moreover, such a design can also avoid the problem of disconnection of the second wire 150 in FIG. 5 due to the need to traverse the edge S of the insulating layer 160A.
另外，本實施例可令第二導線150延伸至遮光區A2的末端集中設置在第一導線140延伸至遮光區A2的末端的一側，以利第一導線140以及第二導線150與一訊號傳遞線路接合，但本發 明不限於此。在另一實施例中，第一導線140的末端以及第二導線150的末端可分別與不同的訊號傳遞線路接合。如此，第一導線140與第二導線150在遮光區A2的末端可以不用緊鄰在一起。 In addition, in this embodiment, the second wire 150 extends to the end of the light shielding area A2 and is disposed at a side of the first wire 140 extending to the end of the light shielding area A2, so as to facilitate the first wire 140 and the second wire 150 and a signal. Transmission line joint, but this hair It is not limited to this. In another embodiment, the end of the first wire 140 and the end of the second wire 150 can be respectively engaged with different signal transmission lines. As such, the first wire 140 and the second wire 150 may not be adjacent to each other at the end of the light shielding area A2.
另外，上述實施例的第一電極120以及第二電極130雖皆以串列型態表示，但本發明不限於此。圖11是依照本發明的又一實施例的一種觸控面板的上視示意圖。請參照圖11，觸控面板300大致相同於觸控面板100，且相同的元件以相同的標號表示，於此不再贅述。主要差異在於，本實施例的各第一電極120A與各第二電極130A的至少其中之一的形狀為條狀。如圖11所示，各第一電極120A與各第二電極130A的形狀可皆為條狀。 Further, although the first electrode 120 and the second electrode 130 of the above-described embodiment are all shown in a serial type, the present invention is not limited thereto. FIG. 11 is a top plan view of a touch panel according to still another embodiment of the present invention. Referring to FIG. 11 , the touch panel 300 is substantially the same as the touch panel 100 , and the same components are denoted by the same reference numerals and will not be described again. The main difference is that at least one of each of the first electrode 120A and each of the second electrodes 130A of the present embodiment has a strip shape. As shown in FIG. 11, each of the first electrode 120A and each of the second electrodes 130A may have a strip shape.
此外，觸控面板300包括兩個接合區A31、A32。各第一電極120A的相對兩末端各自與一條第一導線140連接，且與第一電極120A相對靠近接合區A31的末端連接的第一導線140集中至接合區A31中，而與第一電極120A相對靠近接合區A32的末端連接的第一導線140集中至接合區A32中。另一方面，各第二電極130A的相對兩末端各自與一條第二導線150連接，且與相對靠近接合區A31的第二電極130A連接的第二導線150集中至接合區A31中，而與相對靠近接合區A32的第二電極130A連接的第二導線150集中至接合區A32中。 Further, the touch panel 300 includes two land areas A31, A32. The opposite ends of the respective first electrodes 120A are each connected to a first wire 140, and the first wires 140 connected to the end of the first electrode 120A relatively close to the land A31 are concentrated into the land A31, and the first electrode 120A The first wires 140 connected to the ends of the land A32 are concentrated into the land A32. On the other hand, the opposite ends of the respective second electrodes 130A are each connected to a second wire 150, and the second wires 150 connected to the second electrode 130A relatively close to the land A31 are concentrated into the land A31, and The second wires 150 connected to the second electrode 130A adjacent to the land A32 are concentrated into the land A32.
在本實施例中，各第一電極120A的寬度相同於各第二電極130A的寬度，但不限於此。在另一實施例中，各第一電極120A的寬度可不同於各第二電極130A的寬度。舉例而言，可令用以傳 遞驅動信號的驅動電極(第一電極120A與第二電極130A的其中一者)的寬度大於用以傳遞感測信號的接收電極(第一電極120A與第二電極130A的其中另一者)的寬度，且相鄰兩接收電極之間的空隙可設置有擬圖案(dummy pattern)，以均化區域間的光穿透率，使觸控面板具有更為均勻的視覺效果。 In the present embodiment, the width of each of the first electrodes 120A is the same as the width of each of the second electrodes 130A, but is not limited thereto. In another embodiment, the width of each of the first electrodes 120A may be different from the width of each of the second electrodes 130A. For example, it can be used to pass The width of the driving electrode (one of the first electrode 120A and the second electrode 130A) of the driving signal is larger than the receiving electrode (the other one of the first electrode 120A and the second electrode 130A) for transmitting the sensing signal The width and the gap between the adjacent two receiving electrodes may be provided with a dummy pattern to homogenize the light transmittance between the regions, so that the touch panel has a more uniform visual effect.
綜上所述，在本發明上述的實施例中，第一電極以及第二電極設置在厚度可低於50μm的聚醯亞胺承載層上，因此觸控面板的整體厚度可有效地降低。此外，由於觸控面板的絕緣層是連續狀薄膜且是整面地覆蓋於第一電極與第二電極所在的透光區中，其中第一電極與第二電極分別位於絕緣層的相對兩表面上，因此本發明上述的實施例可以避免第一電極與第二電極的相交處因跨線而造成的斷線問題。是以，本發明上述實施例的觸控面板可以相對輕薄且信賴性良好。 In summary, in the above embodiments of the present invention, the first electrode and the second electrode are disposed on the polyimide substrate carrying layer having a thickness of less than 50 μm, so that the overall thickness of the touch panel can be effectively reduced. In addition, since the insulating layer of the touch panel is a continuous film and covers the entire surface of the first electrode and the second electrode, the first electrode and the second electrode are respectively located on opposite surfaces of the insulating layer. Therefore, the above-described embodiment of the present invention can avoid the disconnection problem caused by the crossing of the intersection of the first electrode and the second electrode. Therefore, the touch panel of the above embodiment of the present invention can be relatively thin and light and has good reliability.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明的精神和範圍內，當可作些許的更動與潤飾，故本發明的保護範圍當視後附的申請專利範圍所界定者為準。 Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.
100‧‧‧觸控面板 100‧‧‧ touch panel
110‧‧‧聚醯亞胺承載層 110‧‧‧ Polyimine bearing layer
120‧‧‧第一電極 120‧‧‧first electrode
122‧‧‧第一電極墊 122‧‧‧First electrode pad
124‧‧‧第一連接部 124‧‧‧First connection
130‧‧‧第二電極 130‧‧‧second electrode
132‧‧‧第二電極墊 132‧‧‧Second electrode pad
134‧‧‧第二連接部 134‧‧‧Second connection
140‧‧‧第一導線 140‧‧‧First wire
150‧‧‧第二導線 150‧‧‧second wire
160‧‧‧絕緣層 160‧‧‧Insulation
A1‧‧‧透光區 A1‧‧‧Light transmission area
A2‧‧‧遮光區 A2‧‧‧ shading area
A3‧‧‧接合區 A3‧‧‧ junction area
D1‧‧‧第一方向 D1‧‧‧ first direction
D2‧‧‧第二方向 D2‧‧‧ second direction
S‧‧‧邊緣 S‧‧‧ edge
U‧‧‧觸控感測單元 U‧‧‧Touch sensing unit
A-A’‧‧‧剖線 A-A’‧‧‧ cut line
Claims (16)
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| CN201410399823.6A CN105302387A (en) | 2014-07-04 | 2014-08-13 | Touch panel |
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|---|---|---|---|---|
| CN106201095A (en) * | 2016-07-18 | 2016-12-07 | 信利光电股份有限公司 | Nanometer silver touch module based on polyimides and preparation method thereof, electronic equipment |
| TWI673553B (en) * | 2018-04-26 | 2019-10-01 | 台虹科技股份有限公司 | Touch panel sensor structure and manufacturing method thereof |
| CN109032410A (en) * | 2018-07-26 | 2018-12-18 | 京东方科技集团股份有限公司 | Touch-control display panel and preparation method thereof, electronic equipment |
| CN110888550A (en) * | 2019-11-11 | 2020-03-17 | 汕头超声显示器技术有限公司 | Flexible touch sensing device and manufacturing method thereof |
| CN116687544A (en) * | 2023-02-17 | 2023-09-05 | 上海安钛克医疗科技有限公司 | Electrode carrier, electrophysiological catheter and high-voltage pulse ablation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8629842B2 (en) * | 2008-07-11 | 2014-01-14 | Samsung Display Co., Ltd. | Organic light emitting display device |
| KR101793073B1 (en) * | 2010-12-06 | 2017-11-03 | 삼성디스플레이 주식회사 | Touch Screen Panel |
| CN103197806A (en) * | 2012-01-06 | 2013-07-10 | 台达电子工业股份有限公司 | Touch panel and electronic device using same |
| CN103294291B (en) * | 2012-03-05 | 2016-09-07 | 宸鸿科技(厦门)有限公司 | Trackpad |
| TWM455209U (en) * | 2012-12-18 | 2013-06-11 | Unidisplay Inc | Touch panel |
| CN203276226U (en) * | 2013-05-19 | 2013-11-06 | 祥达光学（厦门）有限公司 | Touch control sensing device |
-
2014
- 2014-07-04 TW TW103123167A patent/TW201602879A/en unknown
- 2014-08-13 CN CN201410399823.6A patent/CN105302387A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI822134B (en) * | 2022-06-22 | 2023-11-11 | 群光電能科技股份有限公司 | Backlight module |
| US11846796B1 (en) | 2022-06-22 | 2023-12-19 | Chicony Power Technology Co., Ltd. | Backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105302387A (en) | 2016-02-03 |
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