TWI409536B

TWI409536B - Touch screen structure

Info

Publication number: TWI409536B
Application number: TW99109736A
Authority: TW
Inventors: Jiang-Dong Li; jun-jie Qin; Hui Yuan
Original assignee: Hon Hai Prec Ind Co Ltd
Priority date: 2010-03-30
Filing date: 2010-03-30
Publication date: 2013-09-21
Also published as: TW201133064A

Abstract

A touch screen structure, the touch screen structure includes a touch panel, a bonding layer, a screen and a printed circuit board assembly, the touch screen structure also includes a bracket, the bracket is set up between the touch panel and the screen, the bonding layer stick the touch panel and the screen on the bracket, the bracket includes a substrate and a sidewall vertical to the substrate, the bracket plug in the printed circuit board assembly sidewall by the sidewall, so the bracket isolate the touch panel with the screen, in order to avoid bringing touch trace when touch the screen.

Description

觸摸屏結構 Touch screen structure

本發明涉及一種觸摸屏結構，尤其涉及一種設有支架的觸摸屏結構。 The invention relates to a touch screen structure, in particular to a touch screen structure provided with a bracket.

近年來，隨著移動電話等各種電子設備的高性能化和多樣化的發展，在液晶等顯示元件的前面安裝了光透過性的觸摸板的電子設備正在增加。現有觸摸屏結構包括觸摸板、黏帖層及顯示幕，觸摸板和顯示幕由黏帖層黏帖起來，觸摸板導電層的兩端形成有電極，通過導電排線電連接到控制板上，控制電子設備各功能的切換。 In recent years, with the development of various types of electronic devices such as mobile phones and the diversification of electronic devices, electronic devices having a light-transmitting touch panel mounted on the front surface of a display element such as a liquid crystal are increasing. The existing touch screen structure includes a touch panel, an adhesive layer and a display screen. The touch panel and the display screen are pasted by the adhesive layer, and electrodes are formed at both ends of the conductive layer of the touch panel, and are electrically connected to the control board through the conductive cable, and are controlled. Switching of functions of electronic devices.

然而，現有觸摸板和顯示幕黏帖一體，觸摸時會按壓到顯示幕出現水波紋，影響顯示效果。 However, the existing touchpad and the display screen are integrally attached, and when touched, the display screen is pressed with water ripples, which affects the display effect.

有鑒於此，有必要提供一種觸摸屏結構，該觸摸屏結構可有效防止水波紋。 In view of the above, it is necessary to provide a touch screen structure that can effectively prevent water ripples.

本發明涉及一種觸摸屏結構，該觸摸屏結構包括觸摸板、黏合層、顯示幕及印刷電路板，其該觸摸屏結構還包括支架，該支架設置在該觸摸板及該顯示幕之間，通過該黏合層將該觸摸板和該顯示幕固定在該支架上，該支架包括基板和垂直該基板外周延伸的側壁，該側壁插接在該印刷電路板上，固定該支架。 The invention relates to a touch screen structure, which comprises a touch panel, an adhesive layer, a display screen and a printed circuit board, wherein the touch screen structure further comprises a bracket disposed between the touch panel and the display screen, through the adhesive layer Will The touch panel and the display screen are fixed on the bracket, and the bracket comprises a substrate and a sidewall extending perpendicularly to an outer periphery of the substrate, the sidewall being inserted on the printed circuit board to fix the bracket.

由於該觸摸板和顯示幕之間設置該支架，就可以通過該支架的厚度隔離該觸摸板和該顯示幕接觸，防止該顯示幕產生水波紋。 Since the bracket is disposed between the touch panel and the display screen, the touch panel can be isolated from the display screen by the thickness of the bracket to prevent the display screen from generating water ripples.

10‧‧‧觸摸板 10‧‧‧ touchpad

20‧‧‧黏合層 20‧‧‧Adhesive layer

21‧‧‧第一黏合層 21‧‧‧First adhesive layer

22‧‧‧第二黏合層 22‧‧‧Second adhesive layer

30‧‧‧支架 30‧‧‧ bracket

31‧‧‧基板 31‧‧‧Substrate

32‧‧‧側壁 32‧‧‧ side wall

33‧‧‧排線孔 33‧‧‧Line hole

34‧‧‧避位槽 34‧‧‧ escaping slot

35‧‧‧凸塊 35‧‧‧Bumps

40‧‧‧顯示幕 40‧‧‧ display screen

41‧‧‧導電排線 41‧‧‧Electrical cable

50‧‧‧印刷電路板 50‧‧‧Printed circuit board

100‧‧‧觸摸屏結構 100‧‧‧ touch screen structure

圖1為本發明觸摸屏結構的立體圖。 1 is a perspective view showing the structure of a touch screen of the present invention.

圖2為圖1中的觸摸屏結構的分解示意圖。 2 is an exploded perspective view of the touch screen structure of FIG. 1.

圖3為圖1中觸摸屏結構的支架的立體圖。 3 is a perspective view of the bracket of the touch screen structure of FIG. 1.

圖4為圖1中觸摸屏結構的剖面圖。 4 is a cross-sectional view showing the structure of the touch screen of FIG. 1.

請參考圖1、圖2，其揭示了本發明較佳實施方式的觸摸屏結構100，該觸摸屏結構100包括觸摸板10、支架30、黏合層20、顯示幕40及印刷電路板50。該支架30設置在該觸摸板10及該顯示幕40之間，該觸摸板10及該顯示幕40通過該黏合層20固定在該支架30上，該支架30固定在該印刷電路板50上。 Please refer to FIG. 1 and FIG. 2 , which illustrate a touch screen structure 100 according to a preferred embodiment of the present invention. The touch screen structure 100 includes a touch panel 10 , a bracket 30 , an adhesive layer 20 , a display screen 40 , and a printed circuit board 50 . The bracket 30 is disposed between the touch panel 10 and the display screen 40. The touch panel 10 and the display screen 40 are fixed on the bracket 30 by the adhesive layer 20, and the bracket 30 is fixed on the printed circuit board 50.

該支架30配合該觸摸板10及顯示幕40的外周形狀設置成環狀，由硬度較大的金屬材料製成，該支架30的厚度在0.3mm~0.5mm範圍內，將該觸摸板10及顯示幕40隔離，防止按壓時該觸摸板10與該顯示幕40接觸，產生水波紋，本實施例中該支架30由鋼鐵製成長條環槽。 The bracket 30 is formed in an annular shape in accordance with the outer peripheral shape of the touch panel 10 and the display screen 40, and is made of a metal material having a relatively high hardness. The thickness of the bracket 30 is in the range of 0.3 mm to 0.5 mm, and the touch panel 10 and The display screen 40 is isolated to prevent the touch panel 10 from coming into contact with the display screen 40 when pressed, and water ripple is generated. In the embodiment, the bracket 30 is made of steel and has a long ring groove.

請參考圖3，該支架30包括基板31和垂直該基板31外周延伸的側壁32。本實施方式中，該側壁32延伸的的方向為該基板31下表面，反向則為該基板31的上表面。該側壁32的高度與該顯示幕40的厚度一致，使得該側壁32可包裹住該顯示幕40；該側壁32上配合印刷電路板50形成有多個避位槽34和凸塊35，該凸塊35可將該支架30固定在印刷電路板50上。本實施例中該凸塊35插接在印刷電路板50的凹槽內，固定該支架30。該側壁32的一邊還形成一排線孔33，該顯示幕40的導電排線41由該排線孔33伸出與印刷電路板電連接。本實施例中，該支架30的排線孔33設置在該側壁32的一長邊，並配合導電排線41的寬度設置。 Referring to FIG. 3, the bracket 30 includes a substrate 31 and sidewalls 32 extending perpendicularly to the periphery of the substrate 31. In the present embodiment, the direction in which the side wall 32 extends is the lower surface of the substrate 31, and the reverse direction is the upper surface of the substrate 31. The height of the side wall 32 is the same as the thickness of the display screen 40, so that the side wall 32 can enclose the display screen 40. The matching printed circuit board 50 on the side wall 32 is formed with a plurality of avoidance slots 34 and bumps 35. Block 35 can secure the bracket 30 to the printed circuit board 50. In this embodiment, the bump 35 is inserted into the recess of the printed circuit board 50 to fix the bracket 30. One side of the side wall 32 also defines a row of wire holes 33. The conductive wire 41 of the display screen 40 is extended from the wire hole 33 to be electrically connected to the printed circuit board. In this embodiment, the wire hole 33 of the bracket 30 is disposed on a long side of the side wall 32 and is disposed along the width of the conductive wire 41.

請參考圖2，該黏合層20配合該基板31的形狀設置，並且該黏合層20面積不大於該基板31的面積。本實施例中該黏合層20配合該基板31的外周形狀設置成環狀，該黏合層20厚度約14μm左右，以丙烯或橡膠等黏合劑為材料製成。該黏合層20包括第一黏合層21和第二黏合層22。該第一黏合層21設置在該觸摸板10和該支架30之間，將該觸摸板10黏帖在該基板31的上表面。該第二黏合層22設置在該支架30和該顯示幕40之間，將該顯示幕40黏帖在該基板31的下表面。 Referring to FIG. 2 , the adhesive layer 20 is disposed in the shape of the substrate 31 , and the area of the adhesive layer 20 is not greater than the area of the substrate 31 . In this embodiment, the adhesive layer 20 is formed in a ring shape in accordance with the outer peripheral shape of the substrate 31. The adhesive layer 20 has a thickness of about 14 μm and is made of a material such as acryl or rubber. The adhesive layer 20 includes a first adhesive layer 21 and a second adhesive layer 22 . The first adhesive layer 21 is disposed between the touch panel 10 and the bracket 30, and the touch panel 10 is adhered to the upper surface of the substrate 31. The second adhesive layer 22 is disposed between the bracket 30 and the display screen 40, and the display screen 40 is adhered to the lower surface of the substrate 31.

請參考圖4，當按壓該觸摸板10時，觸摸板會因為受壓而下彎，由於該觸摸板10和顯示幕40之間設置該支架30，就可以通過支架的厚度有效隔離該觸摸板10和該顯示幕40接觸，防止該顯示幕40產生水波紋；並且該支架30的側壁32包裹該顯示幕40的外周，可支撐該顯示幕40防止外力破損，延長該觸摸屏結構100使用壽命。 Referring to FIG. 4, when the touch panel 10 is pressed, the touch panel may be bent due to pressure. Since the bracket 30 is disposed between the touch panel 10 and the display screen 40, the touch panel can be effectively isolated by the thickness of the bracket. 10 contacting the display screen 40 to prevent the display screen 40 from generating water ripples; and the side wall 32 of the bracket 30 encloses the display The outer periphery of the screen 40 can support the display screen 40 to prevent damage of the external force and prolong the service life of the touch screen structure 100.

10‧‧‧觸摸板 10‧‧‧ touchpad

20‧‧‧黏合層 20‧‧‧Adhesive layer

21‧‧‧第一黏合層 21‧‧‧First adhesive layer

22‧‧‧第二黏合層 22‧‧‧Second adhesive layer

30‧‧‧支架 30‧‧‧ bracket

31‧‧‧基板 31‧‧‧Substrate

32‧‧‧側壁 32‧‧‧ side wall

33‧‧‧排線孔 33‧‧‧Line hole

34‧‧‧避位槽 34‧‧‧ escaping slot

35‧‧‧凸塊 35‧‧‧Bumps

40‧‧‧顯示幕 40‧‧‧ display screen

41‧‧‧導電排線 41‧‧‧Electrical cable

50‧‧‧印刷電路板 50‧‧‧Printed circuit board

100‧‧‧觸摸屏結構 100‧‧‧ touch screen structure

Claims

一種觸摸屏結構，該觸摸屏結構包括觸摸板、黏合層、顯示幕及印刷電路板，其改良在於：該觸摸屏結構還包括支架，支架設置在觸摸板及顯示幕之間，黏合層將觸摸板和顯示幕固定在支架上；支架包括基板和垂直該基板外周延伸的側壁，該側壁插接在印刷電路板上。 A touch screen structure comprising a touch panel, an adhesive layer, a display screen and a printed circuit board, wherein the touch screen structure further comprises a bracket, the bracket is disposed between the touch panel and the display screen, and the adhesive layer is the touch panel and the display The curtain is fixed on the bracket; the bracket includes a substrate and a sidewall extending perpendicularly to the periphery of the substrate, the sidewall being plugged onto the printed circuit board.

如申請專利範圍第1項所述之觸摸屏結構，其中，該支架配合觸摸板及顯示幕的外周形狀設置成環狀。 The touch screen structure according to the first aspect of the invention, wherein the bracket is matched with the outer shape of the touch panel and the display screen to be annular.

如申請專利範圍第2項所述之觸摸屏結構，其中，該支架由硬度較大的金屬材料製成。 The touch screen structure of claim 2, wherein the bracket is made of a metal material having a relatively high hardness.

如申請專利範圍第2項所述之觸摸屏結構，其中，該支架的厚度在0.3mm~0.5mm範圍內。 The touch screen structure of claim 2, wherein the bracket has a thickness in the range of 0.3 mm to 0.5 mm.

如申請專利範圍第1項所述之觸摸屏結構，其中，該黏合層配合基板的外周形狀設置成環狀，並且該黏合層面積不大於該基板的面積。 The touch screen structure of claim 1, wherein the adhesive layer is disposed in a ring shape in a peripheral shape of the substrate, and the adhesive layer has an area not larger than an area of the substrate.

如申請專利範圍第1項所述之觸摸屏結構，其中，該黏合層包括第一黏合層和第二黏合層，第一黏合層設置在觸摸板和支架之間，將觸摸板黏帖在基板的上表面；第二黏合層設置在支架和顯示幕之間，將顯示幕黏帖在基板的下表面。 The touch screen structure of claim 1, wherein the adhesive layer comprises a first adhesive layer and a second adhesive layer, the first adhesive layer is disposed between the touch panel and the bracket, and the touch panel is adhered to the substrate. The upper surface is disposed between the bracket and the display screen to adhere the display screen to the lower surface of the substrate.

如申請專利範圍第1項所述之觸摸屏結構，其中，該側壁四周配合印刷電路板形成有多個避位槽和凸塊，該凸塊插接在印刷電路板內，固定該支架。 The touch screen structure of claim 1, wherein the side wall of the side wall is formed with a plurality of avoidance slots and bumps, and the bumps are inserted into the printed circuit board to fix the bracket.

如申請專利範圍第1項所述之觸摸屏結構，其中，該側壁上還形成排線孔，顯示幕的導電排線由該排線孔伸出與印刷電路板電連接。 The touch screen structure of claim 1, wherein the side wall further defines a wire hole, and the conductive wire of the display screen is extended from the wire hole to be electrically connected to the printed circuit board.

如申請專利範圍第1項所述之觸摸屏結構，其中，該側壁的高度與顯示幕的厚度一致，使得該側壁可包裹住顯示幕。 The touch screen structure of claim 1, wherein the height of the side wall is consistent with the thickness of the display screen such that the side wall can enclose the display screen.