TW201506713A - Touch display panel - Google Patents
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Abstract
Description
本發明涉及一種觸控顯示面板。The invention relates to a touch display panel.
現有觸控顯示面板上實現觸控功能的觸控電極結構通常與遮光圖案層層疊設置。觸控電極結構上設置有複數網格狀觸控墊。所述網格狀觸控墊內的格線通常與遮光圖案層內的格線具有相同的排布方向及相近的排列密度,從而容易因相互干涉而產生疊紋的目視效果,即業界俗稱的莫爾現象(Moire Pattern)。所述莫爾現象嚴重影響了觸控顯示面板的視覺效果。A touch electrode structure that implements a touch function on a conventional touch display panel is generally stacked with a light shielding pattern layer. A plurality of grid-shaped touch pads are disposed on the touch electrode structure. The grid lines in the grid-shaped touch pad generally have the same arrangement direction and similar arrangement density as the grid lines in the light-shielding pattern layer, so that the visual effect of the moiré is easily generated by mutual interference, which is commonly known in the industry. Moire Pattern. The Moire phenomenon seriously affects the visual effect of the touch display panel.
鑒於此,有必要提供一種可消除莫爾現象的觸控顯示面板。In view of this, it is necessary to provide a touch display panel that can eliminate the Moire phenomenon.
一種觸控顯示面板,其包括第一基板、第二基板、設置在第一基板與第二基板之間的顯示介質層及設置在第一基板或第二基板上的遮光圖案層、設置第二基板上的觸控電極結構。所述遮光圖案層包括複數縱橫交錯圖案線以分隔出複數畫素。所述觸控電極結構包括複數觸控墊。所述觸控墊包括邊框及設置在邊框內的多條縱橫交錯的感測線。所述邊框平行於圖案線設置。所述感測線與所述邊框成一大於零度的夾角。A touch display panel includes a first substrate, a second substrate, a display medium layer disposed between the first substrate and the second substrate, and a light shielding pattern layer disposed on the first substrate or the second substrate, and a second Touch electrode structure on the substrate. The light shielding pattern layer includes a plurality of crisscross pattern lines to separate the plurality of pixels. The touch electrode structure includes a plurality of touch pads. The touch pad includes a frame and a plurality of criss-crossing sensing lines disposed in the frame. The bezel is disposed parallel to the pattern line. The sensing line forms an angle with the frame that is greater than zero degrees.
相對於現有技術,本發明所提供的觸控墊圖案將空間頻率與遮光圖案層的圖案線相近的感測線設置呈與圖案線相交,從而明顯地減少因感測線與遮光圖案層的圖案線之間相互干涉所產生的莫爾現象,改善了觸控顯示面板的視覺效果。Compared with the prior art, the touch pad pattern provided by the present invention sets the sensing line whose spatial frequency is close to the pattern line of the light shielding pattern layer to intersect the pattern line, thereby significantly reducing the pattern line of the sensing line and the light shielding pattern layer. The Moire phenomenon generated by mutual interference improves the visual effect of the touch display panel.
1、2‧‧‧觸控顯示面板1, 2‧‧‧ touch display panel
10‧‧‧第一基板10‧‧‧First substrate
12‧‧‧第二基板12‧‧‧second substrate
14‧‧‧遮光圖案層14‧‧‧Lighting pattern layer
16‧‧‧觸控電極結構16‧‧‧Touch electrode structure
18‧‧‧顯示介質層18‧‧‧ Display media layer
140‧‧‧圖案線140‧‧‧ pattern line
142‧‧‧畫素142‧‧ ‧ pixels
160‧‧‧觸控墊160‧‧‧ touch pad
162、2620‧‧‧邊框162, 2620‧‧‧ border
164‧‧‧感測線164‧‧‧Sensing line
100‧‧‧主動層100‧‧‧ active layer
101‧‧‧數據線101‧‧‧data line
102‧‧‧掃描線102‧‧‧ scan line
103‧‧‧畫素區域103‧‧‧ pixel area
104‧‧‧主動元件104‧‧‧Active components
105‧‧‧畫素電極105‧‧‧pixel electrodes
161、261‧‧‧第一觸控串列161, 261‧‧‧ first touch string
163、263‧‧‧第二觸控串列163, 263‧‧‧ second touch string
165‧‧‧絕緣層165‧‧‧Insulation
262‧‧‧虛擬墊262‧‧‧Virtual mat
2622‧‧‧虛擬圖案2622‧‧‧virtual pattern
圖1為本發明第一實施方式所提供的觸控顯示面板的剖面示意圖。FIG. 1 is a cross-sectional view of a touch display panel according to a first embodiment of the present invention.
圖2為圖1中主動層的結構示意圖。2 is a schematic structural view of the active layer of FIG. 1.
圖3為圖1中觸控電極結構與遮光圖案層的位置關係示意圖。3 is a schematic view showing the positional relationship between the touch electrode structure and the light shielding pattern layer in FIG. 1 .
圖4為本發明第二實施方式所提供的觸控顯示面板中觸控電極結構與遮光圖案層的位置關係示意圖。4 is a schematic diagram showing a positional relationship between a touch electrode structure and a light shielding pattern layer in a touch display panel according to a second embodiment of the present invention.
圖5為本發明第二實施方式所提供的觸控顯示面板中觸控電極結構與遮光圖案層的位置關係示意圖。FIG. 5 is a schematic diagram showing a positional relationship between a touch electrode structure and a light shielding pattern layer in a touch display panel according to a second embodiment of the present invention.
圖6為本發明第三實施方式所提供的觸控顯示面板中觸控電極結構與遮光圖案層的位置關係示意圖。FIG. 6 is a schematic diagram showing a positional relationship between a touch electrode structure and a light shielding pattern layer in a touch display panel according to a third embodiment of the present invention.
如圖1及圖3所示,本發明第一實施方式所提供的觸控顯示面板1包括顯示單元及觸控單元,所述顯示單元包括第一基板10、第二基板12、遮光圖案層14及顯示介質層18。所述觸控單元具有觸控電極結構16,所述觸控電極結構16層疊設置在遮光圖案層14的上方。所述遮光圖案層14包括複數縱橫交錯圖案線140以分隔定義出複數畫素142。所述觸控電極結構16包括複數觸控墊160。所述觸控墊160包括邊框162及設置在邊框162內多條縱橫交錯的感測線164。所述邊框162平行於圖案線140設置。所述感測線164與所述邊框162成一預定的夾角。As shown in FIG. 1 and FIG. 3 , the touch display panel 1 of the first embodiment of the present invention includes a display unit and a touch unit, and the display unit includes a first substrate 10 , a second substrate 12 , and a light shielding pattern layer 14 . And display the dielectric layer 18. The touch unit has a touch electrode structure 16 , and the touch electrode structures 16 are stacked on top of the light shielding pattern layer 14 . The light-shielding pattern layer 14 includes a plurality of criss-cross pattern lines 140 to define a plurality of pixels 142. The touch electrode structure 16 includes a plurality of touch pads 160. The touch pad 160 includes a bezel 162 and a plurality of criss-crossing sensing lines 164 disposed in the bezel 162. The bezel 162 is disposed parallel to the pattern line 140. The sensing line 164 forms a predetermined angle with the frame 162 .
所述第二基板12與第一基板10相對設置。所述顯示介質層18設置在第一基板10與第二基板12之間。所述第一基板10與第二基板12可以為玻璃基板、塑膠基板、陶瓷基板或其他合適的基板。在本實施方式中,所述顯示介質層18為液晶材料,所述觸控顯示面板1為觸控液晶顯示面板。可以理解的是,在其他可替代實施方式中,所述顯示介質層18也可以是其他顯示材料,比如:有機發光材料(Organic Light Emitting Material)、電泳顯示材料(Electrophoretic Display Material)或等離子顯示材料(Plasma Display Material)。The second substrate 12 is disposed opposite to the first substrate 10 . The display medium layer 18 is disposed between the first substrate 10 and the second substrate 12. The first substrate 10 and the second substrate 12 may be a glass substrate, a plastic substrate, a ceramic substrate or other suitable substrate. In the embodiment, the display medium layer 18 is a liquid crystal material, and the touch display panel 1 is a touch liquid crystal display panel. It can be understood that, in other alternative embodiments, the display medium layer 18 may also be other display materials, such as an Organic Light Emitting Material, an Electrophoretic Display Material, or a Plasma Display Material. (Plasma Display Material).
如圖1及圖2所示,所述第一基板10上設置有主動層100。所述主動層100上面設置有縱橫交錯排布的資料線101與掃描線102。所述資料線101與掃描線102定義出複數陣列式排布的畫素區域103。每個畫素區域103內設置有主動元件104及與所述主動元件104電性連接的畫素電極105。所述每一畫素區域103內的主動元件104分別與對應的掃描線102及資料線101相連接,以在掃描線102傳輸的選中信號的控制下將資料線101中的顯示信號傳輸至對應的畫素電極105。As shown in FIGS. 1 and 2, the active layer 100 is disposed on the first substrate 10. The active layer 100 is provided with a data line 101 and a scan line 102 arranged in a crisscross pattern. The data line 101 and the scan line 102 define a pixel array 103 arranged in a plurality of arrays. An active element 104 and a pixel electrode 105 electrically connected to the active element 104 are disposed in each of the pixel regions 103. The active components 104 in each of the pixel regions 103 are respectively connected to the corresponding scan lines 102 and data lines 101 to transmit the display signals in the data lines 101 under the control of the selected signals transmitted by the scan lines 102. Corresponding pixel electrode 105.
所述遮光圖案層14設置在第二基板12上。所述遮光圖案層14上的畫素142與所述主動層100上的畫素區域103相對應。所述遮光圖案層14採用不透光的黑色材料製成,比如:黑色樹脂。因此,也可將遮光圖案層14稱為黑色矩陣。在本實施方式中,所述畫素142內設置有紅色濾光圖案層、藍色濾光圖案層或綠色濾光圖案層。可以理解的是,在其他可替代的實施方式中,所述濾光圖案層也可以設置在其他膜層上,比如設置在第一基板10的所述主動層100上,換言之,所述遮光圖案層14所分隔出的畫素142也可以實際上為開口。The light shielding pattern layer 14 is disposed on the second substrate 12. The pixels 142 on the light shielding pattern layer 14 correspond to the pixel regions 103 on the active layer 100. The light shielding pattern layer 14 is made of a black material that is opaque, such as a black resin. Therefore, the light shielding pattern layer 14 can also be referred to as a black matrix. In the present embodiment, a red filter pattern layer, a blue filter pattern layer, or a green filter pattern layer is disposed in the pixel 142. It can be understood that, in other alternative embodiments, the filter pattern layer may also be disposed on other film layers, such as the active layer 100 of the first substrate 10, in other words, the light shielding pattern. The pixels 142 separated by the layer 14 may also be actually openings.
所述觸控電極結構16設置在第二基板12與遮光圖案層14相對的另一表面上。所述觸控電極結構16包括多條由所述觸控墊160串接而成的第一觸控串列161及多條由所述觸控墊160串接而成的第二觸控串列163。所述第一觸控串列161沿第一方向延伸的。所述第二觸控串列163沿與第一方向相交的第二方向延伸。所述第一觸控串列161與第二觸控串列163可位於同一膜層上,所述第一觸控串列161上的觸控墊160與第二觸控串列163上的觸控墊160之間相互絕緣隔離。所述第一觸控串列161與所述第二觸控串列163也可以位於不同膜層上,並藉由中間的絕緣層165(參見圖5)來電性隔離。所述邊框162及感測線164的材料為導電金屬,比如是鋁、銅、鉬、銀、金、鉑及其合金。所述感測線164的空間頻率與所述圖案線140的空間頻率大致相同。所述邊框162的空間頻率遠小於所述圖案線140的空間頻率。所述邊框162的寬度大於所述圖案線140的寬度。所述感測線164的線寬介於0.1m至10m之間。因此,所述觸控墊160實際上是由極細的金屬線構成,估所述觸控墊160具有相當高的透光率。The touch electrode structure 16 is disposed on the other surface of the second substrate 12 opposite to the light shielding pattern layer 14. The touch electrode structure 16 includes a plurality of first touch strings 161 serially connected by the touch pads 160 and a plurality of second touch strings serially connected by the touch pads 160. 163. The first touch string 161 extends in a first direction. The second touch string 163 extends in a second direction that intersects the first direction. The first touch string 161 and the second touch string 163 may be located on the same film layer, and the touch pads 160 on the first touch string 161 and the touch on the second touch string 163 The pads 160 are insulated from each other. The first touch string 161 and the second touch string 163 may also be located on different film layers and are electrically isolated by an intermediate insulating layer 165 (see FIG. 5). The material of the frame 162 and the sensing line 164 is a conductive metal such as aluminum, copper, molybdenum, silver, gold, platinum, and alloys thereof. The spatial frequency of the sense line 164 is substantially the same as the spatial frequency of the pattern line 140. The spatial frequency of the bezel 162 is much smaller than the spatial frequency of the pattern line 140. The width of the bezel 162 is greater than the width of the pattern line 140. The line width of the sensing line 164 is between 0.1 m to 10 Between m. Therefore, the touch pad 160 is actually composed of a very thin metal wire, and the touch pad 160 is estimated to have a relatively high light transmittance.
如圖4所示,所述感測線164與邊框162所形成的夾角大於零度。所述夾角優選於25°與65°之間,最佳為45°。因為所述邊框162與圖案線140相互平行設置,所以空間頻率相近的所述感測線164與圖案線140之間也會形成所述夾角,從而減少了空間頻率相同的網格圖案相互平行時所產生的嚴重的莫爾現象,而相互平行的邊框162與圖案線140因各自的空間頻率相差較遠,所以導致的莫爾現象不會出現在顯示幕幕的範圍內,或者莫爾條紋的強度弱到人眼無法察覺的程度。也就是說,觸控電極結構16內的任何圖案只要其空間頻率與圖案線140的空間頻率相差較遠則不受圖案線140排布方式的影響。而當只有空間頻率與圖案線140較為接近的觸控電極結構16的圖案才需要與圖案線140之間形成不為零的夾角。因此,本發明所提供的觸控墊160圖案設置會明顯地減少因感測線164與遮光圖案層14的圖案線140之間相互干涉所產生的莫爾現象,改善了觸控顯示面板1的視覺效果。As shown in FIG. 4, the angle formed by the sensing line 164 and the frame 162 Greater than zero degrees. The angle It is preferably between 25 and 65, most preferably 45. Since the frame 162 and the pattern line 140 are disposed in parallel with each other, the angle between the sensing line 164 and the pattern line 140 having similar spatial frequencies is also formed. Therefore, the serious moiré phenomenon generated when the grid patterns having the same spatial frequency are parallel to each other is reduced, and the mutually parallel frame 162 and the pattern line 140 are far apart due to the respective spatial frequencies, so that the Moire phenomenon does not occur. Appears within the scope of the display, or the intensity of the moiré is too weak to be noticed by the human eye. That is to say, any pattern in the touch electrode structure 16 is not affected by the arrangement of the pattern lines 140 as long as the spatial frequency thereof is far from the spatial frequency of the pattern lines 140. When only the pattern of the touch electrode structure 16 whose spatial frequency is close to the pattern line 140 needs to form a non-zero angle with the pattern line 140. Therefore, the pattern setting of the touch pad 160 provided by the present invention can significantly reduce the Moire phenomenon caused by the interference between the sensing line 164 and the pattern line 140 of the light shielding pattern layer 14 , thereby improving the vision of the touch display panel 1 . effect.
如圖5所示,本發明第二實施方式所提供的觸控顯示面板2的結構與本發明第一實施方式所提供的觸控顯示面板1的結構基本相同,其區別在於:所述第一觸控串列261及第二觸控串列263分別設置在不同膜層上並藉由絕緣層165隔開。所述第一觸控串列261及第二觸控串列263上的觸控墊260之間的空隙處設置有虛擬墊262。所述虛擬墊262與第一觸控串列261及所述第二觸控串列263之間電性絕緣。所述虛擬墊262的結構與一般的觸控墊260類似,具有邊框2620及設置在邊框2620內的若干虛擬圖案2622。所述虛擬圖案2622沿其長度方向的延伸。所述虛擬圖案2622的延伸方向與圖案線240之間形成大於零度的夾角。所述虛擬圖案2622可以是具有特定功能的感測電極,也可以是用於調整外觀效果的圖案。在本實施方式中,所述虛擬圖案2622為三對矩形墊片。每一對矩形墊片沿長度方向並行排列。不同對的矩形墊片之間沿垂直於自身長度的方向排列。As shown in FIG. 5, the structure of the touch display panel 2 according to the second embodiment of the present invention is basically the same as that of the touch display panel 1 according to the first embodiment of the present invention. The difference is that the first The touch string 261 and the second touch string 263 are respectively disposed on different film layers and separated by an insulating layer 165. A dummy pad 262 is disposed at a gap between the first touch string 261 and the touch pad 260 on the second touch string 263. The virtual pad 262 is electrically insulated from the first touch string 261 and the second touch string 263. The virtual pad 262 has a structure similar to that of a general touch pad 260, and has a frame 2620 and a plurality of dummy patterns 2622 disposed in the frame 2620. The dummy pattern 2622 extends along its length. An extending angle of the dummy pattern 2622 and the pattern line 240 form an angle greater than zero degrees . The dummy pattern 2622 may be a sensing electrode having a specific function or a pattern for adjusting an appearance effect. In the embodiment, the dummy patterns 2622 are three pairs of rectangular spacers. Each pair of rectangular spacers is arranged in parallel along the length direction. Different pairs of rectangular spacers are arranged in a direction perpendicular to their length.
如圖6所示,本發明第三實施方式所提供的觸控顯示面板3的結構與本發明第二實施方式所提供的觸控面板2的結構基本相同,其區別在於:所述第一觸控串列361及第二觸控串列363均為條形感測電極,且分別沿相互垂直的二方向設置在同一膜層36上。所述第一觸控串列361與第二觸控串列363於相交處相互絕緣隔離。所述虛擬圖案362設置在垂直相交的第一觸控串列361及第二觸控串列363所劃分出的矩形空隙內。所述虛擬圖案362的長度方向與圖案線340之間形成大於零度的夾角。As shown in FIG. 6 , the structure of the touch display panel 3 provided by the third embodiment of the present invention is basically the same as that of the touch panel 2 provided by the second embodiment of the present invention, and the difference is that the first touch The control string 361 and the second touch string 363 are strip-shaped sensing electrodes, and are respectively disposed on the same film layer 36 in two directions perpendicular to each other. The first touch string 361 and the second touch string 363 are insulated from each other at the intersection. The dummy pattern 362 is disposed in a rectangular gap defined by the vertically intersecting first touch string 361 and the second touch string 363. An angle between the length direction of the dummy pattern 362 and the pattern line 340 is greater than zero degrees. .
本技術領域的普通技術人員應當認識到,以上的實施方式僅是用來說明本發明,而並非用作為對本發明的限定,只要在本發明的實質精神範圍之內,對以上實施例所作的適當改變和變化都落在本發明要求保護的範圍之內。It is to be understood by those skilled in the art that the above embodiments are only intended to illustrate the invention, and are not intended to limit the invention, as long as it is within the spirit of the invention Changes and modifications are intended to fall within the scope of the invention.
無no
14‧‧‧遮光圖案層 14‧‧‧Lighting pattern layer
16‧‧‧觸控電極結構 16‧‧‧Touch electrode structure
140‧‧‧圖案線 140‧‧‧ pattern line
142‧‧‧畫素 142‧‧ ‧ pixels
160‧‧‧觸控墊 160‧‧‧ touch pad
162‧‧‧邊框 162‧‧‧Border
164‧‧‧感測線 164‧‧‧Sensing line
161‧‧‧第一觸控串列 161‧‧‧The first touch string
163‧‧‧第二觸控串列 163‧‧‧Second touch string
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CN104049801B (en) * | 2014-06-04 | 2017-03-15 | 上海中航光电子有限公司 | A kind of touch-control display panel and its driving method, touch control display apparatus |
KR102507338B1 (en) * | 2015-11-27 | 2023-03-08 | 엘지디스플레이 주식회사 | Display device with touch screen panel |
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US7129935B2 (en) * | 2003-06-02 | 2006-10-31 | Synaptics Incorporated | Sensor patterns for a capacitive sensing apparatus |
CN102043521B (en) * | 2009-10-09 | 2012-12-12 | 禾瑞亚科技股份有限公司 | Device and method for parallel-scanning differential touch detection |
TWI407340B (en) * | 2009-12-22 | 2013-09-01 | Au Optronics Corp | Touch display panel |
JP5260607B2 (en) * | 2010-09-01 | 2013-08-14 | 双葉電子工業株式会社 | Touch sensor and fluorescent display tube |
JP5808966B2 (en) * | 2011-07-11 | 2015-11-10 | 富士フイルム株式会社 | Conductive laminate, touch panel and display device |
TW201310291A (en) * | 2011-08-17 | 2013-03-01 | Wintek Corp | Touch display panel |
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