TWM539655U - Touch panel with spatial side-running line structure - Google Patents
Touch panel with spatial side-running line structure Download PDFInfo
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- TWM539655U TWM539655U TW105214590U TW105214590U TWM539655U TW M539655 U TWM539655 U TW M539655U TW 105214590 U TW105214590 U TW 105214590U TW 105214590 U TW105214590 U TW 105214590U TW M539655 U TWM539655 U TW M539655U
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Description
本新型係關於一種觸控面板,尤指一種具有立體側跑線結構的觸控面板。The present invention relates to a touch panel, and more particularly to a touch panel having a stereo side running line structure.
隨著行動裝置快速發展,使行動裝置的螢幕發展成為觸控螢幕,供使用者於觸控螢幕上點擊、滑動,以方便操作行動裝置,藉此改變人們使用行動裝置的習慣,目前的行動裝置都會採用窄邊框設計,使觸控螢幕產生大尺寸的使用視覺效果,也方便使用者手握行動裝置。With the rapid development of mobile devices, the screen of mobile devices has developed into a touch screen for users to click and slide on the touch screen to facilitate the operation of mobile devices, thereby changing the habits of people using mobile devices, current mobile devices. The narrow bezel design will enable the touch screen to produce a large-sized visual effect, and it is also convenient for the user to hold the mobile device.
請參閱圖8所示,為習知的一觸控面板,其係於一基板91上設有一感應區92及複數引線93,該感應區92具有複數第一軸感應電極921及複數第二軸感應電極922,該等第一軸感應電極921與該等第二軸感應電極922彼此間相互絕緣,該等第一、第二軸感應電極921、922係分別透過一引線93墊連接至一軟性電路板(圖中未示)。As shown in FIG. 8 , a touch panel is provided on a substrate 91 with a sensing area 92 and a plurality of leads 93 . The sensing area 92 has a plurality of first axis sensing electrodes 921 and a plurality of second axes. The sensing electrodes 922, the first axis sensing electrodes 921 and the second axis sensing electrodes 922 are insulated from each other, and the first and second axis sensing electrodes 921 and 922 are respectively connected to a soft layer through a lead 93 pad. Circuit board (not shown).
製造業者為了提升該觸控面板90的解析度、靈敏度時,會在該感應區92內設置更多的第一、第二軸感應電極921、922,並且對應在該基板91上設有更多的引線93,如此一來就會因為設置更多引線93而佔用該基板91的面積,而導致無法將該觸控面板的邊框縮小,若是為了縮小該觸控面板的邊框,就必須要縮小該等引線93的寬度,如此一來又會造成該等引線93的阻值增加而影響信號的傳輸,或者造成該等引線93斷裂,因此,現有技術存在有改善的空間。In order to improve the resolution and sensitivity of the touch panel 90, the manufacturer may provide more first and second axis sensing electrodes 921 and 922 in the sensing area 92, and correspondingly provide more on the substrate 91. The lead wire 93 is such that the area of the substrate 91 is occupied by the provision of more leads 93, so that the frame of the touch panel cannot be reduced. If the frame of the touch panel is to be reduced, the frame must be reduced. The width of the leads 93, which in turn causes an increase in the resistance of the leads 93, affects the transmission of the signals, or causes the leads 93 to break. Therefore, there is room for improvement in the prior art.
有鑑於上述現有技術所存在的問題,本新型係提供一種具有立體側跑線結構的觸控面板,藉由將側跑線佈設於一基板的上、下表面,以縮小側邊跑線的面積,藉此達到提升空間利用率的目的。In view of the above problems in the prior art, the present invention provides a touch panel having a three-dimensional side running line structure, which is configured to reduce the area of the side running line by arranging the side running lines on the upper and lower surfaces of a substrate. In order to achieve the purpose of improving space utilization.
為達成上述目的所採取的技術手段,係令前述具有立體側跑線結構的觸控面板,其包括: 一基板,其具有一上表面及一下表面,該基板上表面設有一感應區及一走線區,該感應區內形成有複數感應電極; 複數第一側跑線,其分別包括一第一段部及一第二段部,該等第一側跑線的第一段部設於該走線區,並且與對應的感應電極連接,該第二段部設於該基板下表面,並且分別與一第一段部對應; 複數導電部,其設於該基板的上表面及下表面之間,該等導電部的上端分別與對應的第一段部連接,該等導電部的下端分別與對應的第二段部連接; 複數第二側跑線,其設置於該走線區,並且與對應的感應電極連接,該等第二側跑線與該等第一側跑線呈交錯排列; 一軟性電路板,其用以與該等第一側跑線及該等第二側跑線電連接。The touch panel for the above-mentioned purpose is a touch panel having a three-dimensional side running line structure, comprising: a substrate having an upper surface and a lower surface, wherein the upper surface of the substrate is provided with a sensing area and a walking a plurality of sensing electrodes are formed in the sensing area; a plurality of first side running lines respectively include a first segment and a second segment, wherein the first segment of the first side running line is disposed in the a wiring area connected to the corresponding sensing electrode, the second section is disposed on the lower surface of the substrate, and respectively corresponding to a first segment; the plurality of conductive portions are disposed on the upper surface and the lower surface of the substrate The upper ends of the conductive portions are respectively connected to the corresponding first segment portions, and the lower ends of the conductive portions are respectively connected to the corresponding second segment portions; the plurality of second side running lines are disposed in the routing region, and Connected to the corresponding sensing electrodes, the second side running lines are staggered with the first side running lines; a flexible circuit board for running with the first side running lines and the second side running lines Electrical connection.
透過上述構造可知,藉由將該等第一側跑線的第一段部及第二段部分設於該基板的上、下表面,並且透過該等導電部電連接該等第一段部及該等第二段部,使該等第一側跑線呈立體佈線結構,並且該等第二側跑線與該等第一側跑線呈交錯且間隔設置,以縮小該等第一、第二側跑線的跑線面積,並使觸控面板的邊框得以窄邊化,藉此達到提升空間利用率的目的。According to the above configuration, the first segment and the second segment of the first side running line are disposed on the upper and lower surfaces of the substrate, and the first segment is electrically connected through the conductive portions. The second side portion has the first side running line in a three-dimensional wiring structure, and the second side running lines are interlaced and spaced apart from the first side running lines to reduce the first and the first The running area of the two side running lines and the narrowing of the border of the touch panel, thereby achieving the purpose of improving space utilization.
此外,由於將該等第一側跑線的第二段部設置於該基板下表面,使該等第一側跑線及該等第二側跑線在設置上不需要縮小線寬,而不會有阻抗上升的問題,也不會有斷線的問題,以提升訊號傳輸的效果及製程良率。In addition, since the second sections of the first side running lines are disposed on the lower surface of the substrate, the first side running lines and the second side running lines do not need to be reduced in line width, and There will be problems with rising impedance, and there will be no problem of disconnection to improve the effect of signal transmission and process yield.
關於本新型具有立體側跑線結構的觸控面板的第一較佳實施例,請參閱圖1、2所示,其包括一基板10及一軟性電路板20;本實施例中,該基板10係為一透明基板。For a first preferred embodiment of the touch panel having a three-dimensional side running line structure, please refer to FIG. 1 and FIG. 2, which includes a substrate 10 and a flexible circuit board 20; in this embodiment, the substrate 10 It is a transparent substrate.
該基板10具有一上表面、一下表面及兩兩平行的一第一側邊101及一第二側邊102,該基板10上表面形成一感應區11,該基板10上表面且靠近該等第一、第二側邊101、102處形成一走線區12,該感應區11形成有複數第一軸感應電極111、複數第二軸感應電極112,該等第一、第二軸感應電極111、112係呈間隔排列設置,並且分別呈電性絕緣。The substrate 10 has an upper surface, a lower surface, and a first side 101 and a second side 102 parallel to each other. The upper surface of the substrate 10 forms a sensing area 11 on the upper surface of the substrate 10 and adjacent to the first A second routing portion 12 is formed at the second side 101 and 102. The sensing region 11 is formed with a plurality of first axis sensing electrodes 111 and a plurality of second axis sensing electrodes 112. The first and second axis sensing electrodes 111 are formed. The 112 series are arranged at intervals and are electrically insulated.
於其中一第一側邊101的走線區12設有複數第一側跑線13、複數第一導電部14及複數第二側跑線15,該等第一側跑線13分別包括一第一段部131及一第二段部132,該等第一段部131分設於該基板10上表面,該等第二段部132分設於該基板10下表面,該等第一段部131分別與對應的第一軸感應電極111連接,於該基板10的上表面及下表面之間設置對應該等第一側跑線13的第一導電部14,其中該第一導電部14的上端連接該第一段部131,該第一導電部14的下端連接該第二段部132,使該等第一側跑線13的第一段部131及第二段部132相連接導通,該等第一側跑線13的第二段部132分別連接至該軟性電路板20。The first side running line 13 , the plurality of first conductive parts 14 and the plurality of second side running lines 15 are respectively disposed on the one of the first side edges 101 , and the first side running lines 13 respectively include a first a first portion 131 is disposed on the upper surface of the substrate 10, and the second portion 132 is disposed on the lower surface of the substrate 10, and the first portion 131 is respectively connected to the corresponding first axis sensing electrode 111, and a first conductive portion 14 corresponding to the first side running line 13 is disposed between the upper surface and the lower surface of the substrate 10, wherein the first conductive portion 14 is The first end portion 131 is connected to the first end portion 131, and the lower end portion of the first conductive portion 14 is connected to the second segment portion 132, so that the first segment portion 131 and the second segment portion 132 of the first side running line 13 are connected and connected. The second sections 132 of the first side running lines 13 are respectively connected to the flexible circuit board 20.
請參閱圖1、3所示,本實施例中,該第一導電部14係為於該基板10的上表面及下表面之間貫穿形成有一導孔,並且於該導孔內填滿具有導電功能的一導電材料,以形成上述第一導電部14,該導電材料可為一銀膠。As shown in FIG. 1 and FIG. 3 , in the embodiment, the first conductive portion 14 is formed with a conductive hole formed between the upper surface and the lower surface of the substrate 10 , and is filled with conductive in the conductive hole. A conductive material is functionally formed to form the first conductive portion 14, and the conductive material may be a silver paste.
請參閱圖1、4所示,該等第二側跑線15分別包括一第一段部151及一第二段部152,該等第二側跑線15的第一段部151分別與對應的第一軸感應電極111連接,該等第二側跑線15的第二段部152連接至該軟性電路板20。Referring to FIG. 1 and FIG. 4, the second side running lines 15 respectively include a first segment portion 151 and a second segment portion 152, and the first segment portions 151 of the second side running lines 15 respectively correspond to The first axis sensing electrodes 111 are connected, and the second segment 152 of the second side running wires 15 is connected to the flexible circuit board 20.
該等第二側跑線15的第一段部151與該等第一側跑線13的第一段部131呈交錯排列,因此,兩兩間隔排列的其中一第一軸感應電極111連接對應的第一側跑線13的第一段部131,另外一第一軸感應電極111連接對應的第二側跑線15的一第一段部151。The first segment portion 151 of the second side running line 15 and the first segment portion 131 of the first side running line 13 are staggered. Therefore, one of the first axis sensing electrodes 111 arranged in a row is correspondingly connected. The first side portion 131 of the first side running line 13 and the other first axis sensing electrode 111 are connected to a first segment portion 151 of the corresponding second side running line 15.
該等第二側跑線15的第二段部152與該等第一側跑線13的第二段部132於該基板10的上、下表面呈平行相對應,使該等第一側跑線13及該等第二側跑線15呈整齊排列設置,以縮小該走線區12的跑線面積。The second section 152 of the second side running line 15 and the second section 132 of the first side running line 13 are parallel to the upper and lower surfaces of the substrate 10, so that the first side runs The line 13 and the second side running lines 15 are arranged neatly to reduce the running area of the line area 12.
請參閱圖1、2所示,於其中一第二側邊102的走線區12設有複數第三側跑線16,使該等第二軸感應電極112分別經由一第三側跑線16連接至該軟性電路板20。Referring to FIG. 1 and FIG. 2, a plurality of third side running lines 16 are disposed on the wiring area 12 of the second side 102, so that the second axis sensing electrodes 112 respectively pass through a third side running line 16. Connected to the flexible circuit board 20.
本實施例中,該基板10的上表面及下表面且靠近該等第三側跑線16的一處設有複數第一連接端子103,該等第一連接端子103用以連接該等第一側跑線13、該等第二側跑線15及該等第三側跑線16。In this embodiment, a plurality of first connection terminals 103 are disposed on the upper surface and the lower surface of the substrate 10 and adjacent to the third side running lines 16, and the first connection terminals 103 are used to connect the first terminals. The side running line 13, the second side running line 15 and the third side running line 16.
請參閱圖1、3所示,該軟性電路板20上設有一觸控感應積體電路21,該軟性電路板20設置於該基板10上且靠近該等第三側跑線16的一處,並且透過二導電膠22分別連接該基板10上表面及下表面的第一連接端子103,使該等第一、第二軸感應電極111、112電連接至該軟性電路板20的觸控感應積體電路21;本實施例中,該導電膠22為一異方性導電膠。As shown in FIG. 1 and FIG. 3 , the flexible circuit board 20 is provided with a touch sensing integrated circuit 21 , and the flexible circuit board 20 is disposed on the substrate 10 and adjacent to a third side running line 16 . And connecting the first connection terminals 103 on the upper surface and the lower surface of the substrate 10 through the two conductive adhesives 22, and electrically connecting the first and second axis sensing electrodes 111 and 112 to the touch sensing product of the flexible circuit board 20. The body circuit 21; in this embodiment, the conductive paste 22 is an anisotropic conductive paste.
藉由將該等第一側跑線13的第一段部131及第二段部132分設於該基板10的上、下表面的立體佈線結構,以縮小走線區12的跑線面積,使該等第一側跑線13及該等第二側跑線15在設置上不需縮小線寬,而有效改善跑線阻抗增加的問題,藉此達到提升訊號傳輸、製程良率以及空間利用率的目的。The first segment 131 and the second segment 132 of the first side running line 13 are divided into three-dimensional wiring structures on the upper and lower surfaces of the substrate 10 to reduce the running area of the routing area 12, The first side running line 13 and the second side running line 15 are arranged without reducing the line width, thereby effectively improving the problem of increased running line impedance, thereby improving signal transmission, process yield and space utilization. The purpose of the rate.
請參閱圖5、6所示,為本新型第二較佳實施例,第二較佳實施例與第一較佳實施例大致相同,惟第二較佳實施例於該基板10的另一第一側邊101的走線區12,進一步設置有與第一較佳實施例的第一側跑線13相同結構的複數第四側跑線17,與第一較佳實施例的第一導電部14相同結構的複數第二導電部18,以及與第一較佳實施例的第二側跑線15相同結構的複數第五側跑線19,該等第四、第五側跑線17、19分別與相對應的第一軸感應電極111連接。Referring to FIGS. 5 and 6, a second preferred embodiment of the present invention is substantially the same as the first preferred embodiment, but the second preferred embodiment is another substrate 10 The wiring area 12 of the one side 101 is further provided with a plurality of fourth side running lines 17 having the same structure as the first side running line 13 of the first preferred embodiment, and the first conductive portion of the first preferred embodiment. 14 a plurality of second conductive portions 18 of the same structure, and a plurality of fifth side running lines 19 of the same structure as the second side running line 15 of the first preferred embodiment, the fourth and fifth side running lines 17, 19 They are respectively connected to the corresponding first axis sensing electrodes 111.
該等第四側跑線17分別包括有一第一段部171及一第二段部172,該等第四側跑線17的第二段部172設於該基板10下表面,並且於該基板10的上、下表面之間設置對應該等第四側跑線17的第二導電部18,該第二導電部18的上端及下端分別連接該第四側跑線17的第一段部171及第二段部172,以連接導通該第四側跑線17的第一、第二段部171、172,該等第四側跑線17的第一段部171分別與對應的第一軸感應電極111連接,該等第四側跑線17的第二段部172連接至該軟性電路板20。The fourth side running lines 17 respectively include a first segment portion 171 and a second segment portion 172. The second segment portion 172 of the fourth side running line 17 is disposed on the lower surface of the substrate 10 and on the substrate. A second conductive portion 18 corresponding to the fourth side running line 17 is disposed between the upper and lower surfaces of the 10, and the upper end and the lower end of the second conductive portion 18 are respectively connected to the first portion 171 of the fourth side running line 17. And the second section 172 is configured to connect the first and second sections 171 and 172 that open the fourth side running line 17, and the first section 171 of the fourth side running line 17 and the corresponding first axis respectively The sensing electrodes 111 are connected, and the second segment 172 of the fourth side running wires 17 is connected to the flexible circuit board 20.
本實施例中,該第二導電部18係為於該基板10的上表面及下表面之間貫穿形成有一導孔,並且於該導孔內填滿具有導電功能的一導電材料,以形成上述第二導電部18,該導電材料可為一銀膠。In this embodiment, the second conductive portion 18 is formed with a conductive hole formed between the upper surface and the lower surface of the substrate 10, and is filled with a conductive material having a conductive function in the conductive hole to form the above The second conductive portion 18, the conductive material may be a silver paste.
該等第五側跑線19分別包括一第一段部191及一第二段部192,該等第五側跑線19的第一段部191分別與對應的第一軸感應電極111連接,該等第五側跑線19的第二段部192分別連接至該軟性電路板20,該等第五側跑線19的第一段部191與該等第四側跑線17的第一段部171於該基板10上表面呈交錯排列,該等第五側跑線19的第二段部192與該等第四側跑線17的第二段部172於該基板10上、下表面呈平行相對應的排列,使該等第四、第五側跑線17、19呈整齊設置,並且有效縮小跑線面積。The fifth side running lines 19 respectively include a first segment portion 191 and a second segment portion 192. The first segment portions 191 of the fifth side running wires 19 are respectively connected to the corresponding first axis sensing electrodes 111. The second section 192 of the fifth side running line 19 is respectively connected to the flexible circuit board 20, the first section 191 of the fifth side running line 19 and the first section of the fourth side running line 17. The second portion 192 of the fifth side running line 19 and the second length portion 172 of the fourth side running line 17 are on the upper and lower surfaces of the substrate 10 in a staggered arrangement on the upper surface of the substrate 10 . The parallel corresponding arrangement causes the fourth and fifth side running lines 17, 19 to be neatly arranged, and effectively reduces the running line area.
該基板10的上表面及下表面靠近該等第三側跑線16的一處分別設有與該等第四、第五側跑線17、19相連接的複數第二連接端子104,並請進一步參閱圖7所示,該軟性電路板20透過該等導電膠22,以分別連接該基板10上表面及下表面的第二連接端子104,使該等第一軸感應電極111經由該等第四、第五側跑線17、19電連接至該軟性電路板20的觸控感應積體電路21。A plurality of second connection terminals 104 connected to the fourth and fifth side running lines 17 and 19 are respectively disposed at a position of the upper surface and the lower surface of the substrate 10 adjacent to the third side running lines 16 and Referring to FIG. 7 , the flexible circuit board 20 passes through the conductive adhesives 22 to connect the second connection terminals 104 on the upper surface and the lower surface of the substrate 10 respectively, so that the first axis sensing electrodes 111 pass through the first 4. The fifth side running lines 17, 19 are electrically connected to the touch sensing integrated circuit 21 of the flexible circuit board 20.
藉由在該基板10的走線區12設置有該等第四側跑線17及該等第五側跑線19,以提升該等第一軸感應電極111的訊號傳輸效率。The fourth side running line 17 and the fifth side running line 19 are disposed on the wiring area 12 of the substrate 10 to improve the signal transmission efficiency of the first axis sensing electrodes 111.
10,91‧‧‧基板
101‧‧‧第一側邊
102‧‧‧第二側邊
103‧‧‧第一連接端子
104‧‧‧第二連接端子
11,92‧‧‧感應區
111,921‧‧‧第一軸感應電極
112,922‧‧‧第二軸感應電極
12‧‧‧走線區
13‧‧‧第一側跑線
131,151,171,191‧‧‧第一段部
132,152,172,192‧‧‧第二段部
14‧‧‧第一導電部
15‧‧‧第二側跑線
16‧‧‧第三側跑線
17‧‧‧第四側跑線
18‧‧‧第二導電部
19‧‧‧第五側跑線
20‧‧‧軟性電路板
21‧‧‧觸控感應積體電路
22‧‧‧導電膠
93‧‧‧引線10,91‧‧‧substrate
101‧‧‧ first side
102‧‧‧Second side
103‧‧‧First connection terminal
104‧‧‧Second connection terminal
11,92‧‧‧ Sensing area
111,921‧‧‧First axis induction electrode
112,922‧‧‧Second axis induction electrode
12‧‧‧Drop area
13‧‧‧First side running line
131, 151, 171, 191‧ ‧ the first paragraph
132,152,172,192‧‧‧second section
14‧‧‧First Conductive Department
15‧‧‧Second side running line
16‧‧‧ third side running line
17‧‧‧ fourth side running line
18‧‧‧Second Conductive Department
19‧‧‧ fifth side running line
20‧‧‧Soft circuit board
21‧‧‧Touch-sensitive integrated circuit
22‧‧‧Conductive adhesive
93‧‧‧Lead
圖1 係本新型第一較佳實施例之觸控面板的上視圖。 圖2 係本新型第一較佳實施例之觸控面板的背視圖。 圖3 係本新型第一較佳實施例之圖1的A-A剖面圖。 圖4 係本新型第一較佳實施例之觸控面板的局部放大圖。 圖5 係本新型第二較佳實施例之觸控面板的上視圖。 圖6 係本新型第二較佳實施例之觸控面板的背視圖。 圖7 係本新型第二較佳實施例之圖5的B-B剖面圖。 圖8 係習知的一觸控面板示意圖。1 is a top view of a touch panel of the first preferred embodiment of the present invention. 2 is a rear view of the touch panel of the first preferred embodiment of the present invention. Figure 3 is a cross-sectional view taken along line A-A of Figure 1 of the first preferred embodiment of the present invention. 4 is a partial enlarged view of a touch panel of the first preferred embodiment of the present invention. FIG. 5 is a top view of the touch panel of the second preferred embodiment of the present invention. 6 is a rear view of the touch panel of the second preferred embodiment of the present invention. Figure 7 is a cross-sectional view taken along line B-B of Figure 5 of the second preferred embodiment of the present invention. FIG. 8 is a schematic diagram of a conventional touch panel.
10‧‧‧基板 10‧‧‧Substrate
101‧‧‧第一側邊 101‧‧‧ first side
102‧‧‧第二側邊 102‧‧‧Second side
103‧‧‧第一連接端子 103‧‧‧First connection terminal
11‧‧‧感應區 11‧‧‧ Sensing area
111‧‧‧第一軸感應電極 111‧‧‧First axis sensing electrode
112‧‧‧第二軸感應電極 112‧‧‧Second axis induction electrode
12‧‧‧走線區 12‧‧‧Drop area
13‧‧‧第一側跑線 13‧‧‧First side running line
131,151‧‧‧第一段部 131,151‧‧‧The first paragraph
132,152‧‧‧第二段部 132,152‧‧‧The second paragraph
14‧‧‧第一導電部 14‧‧‧First Conductive Department
15‧‧‧第二側跑線 15‧‧‧Second side running line
16‧‧‧第三側跑線 16‧‧‧ third side running line
20‧‧‧軟性電路板 20‧‧‧Soft circuit board
21‧‧‧觸控感應積體電路 21‧‧‧Touch-sensitive integrated circuit
22‧‧‧導電膠 22‧‧‧Conductive adhesive
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW105214590U TWM539655U (en) | 2016-09-23 | 2016-09-23 | Touch panel with spatial side-running line structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW105214590U TWM539655U (en) | 2016-09-23 | 2016-09-23 | Touch panel with spatial side-running line structure |
Publications (1)
Publication Number | Publication Date |
---|---|
TWM539655U true TWM539655U (en) | 2017-04-11 |
Family
ID=59255282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW105214590U TWM539655U (en) | 2016-09-23 | 2016-09-23 | Touch panel with spatial side-running line structure |
Country Status (1)
Country | Link |
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TW (1) | TWM539655U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113129770A (en) * | 2020-01-16 | 2021-07-16 | 重庆康佳光电技术研究院有限公司 | Display back plate, display equipment and splicing display equipment |
-
2016
- 2016-09-23 TW TW105214590U patent/TWM539655U/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113129770A (en) * | 2020-01-16 | 2021-07-16 | 重庆康佳光电技术研究院有限公司 | Display back plate, display equipment and splicing display equipment |
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