Display module with touch keys

Abstract

The display module comprises a cover plate assembly, a film touch assembly and a display assembly, the cover plate assembly comprises a cover plate, and a visible area and a touch area are arranged on the cover plate; the film touch assembly comprises a film substrate, an ITO pattern layer, a silver paste wiring layer and an OCA glue layer. The display assembly comprises an FPC connector, a display screen and a display FPC. The touch display screen is installed on the visible area, the key design is added to the touch area, the shortcut key function is achieved through the film touch assembly, and therefore the function of a large-size integrated module is achieved through a small-size liquid crystal display screen, cost is reduced, and product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, in particular to a display module with touch buttons. Background Art

[0002] As the application of Incell LCD display modules becomes more and more widespread, they are also used in the vehicle center console. In order to meet the daily needs of users, it is necessary to design some shortcut keys on the LCD screen of the vehicle center console, such as home, main menu and other buttons, so that the display screen can be provided to users conveniently and quickly. If the functions of all shortcut keys are realized by the LCD screen, a larger LCD screen needs to be used, resulting in a larger space in the car and a higher cost. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a display module with touch buttons.

[0004] A display module with touch buttons includes: a cover plate component, a film touch component and a display component, the cover plate component includes a cover plate, and a visible area and a touch area are arranged on the cover plate; the film touch component includes a film substrate, an ITO pattern layer, a silver paste wiring layer and an OCA adhesive layer, the ITO pattern layer is arranged on one side of the film substrate, the silver paste wiring layer is screen-printed on the ITO pattern layer, the OCA adhesive layer is arranged on the silver paste wiring layer, and the OCA adhesive layer is bonded to the touch area; the display component includes an FPC connector, a display screen and a display FPC, the display screen is arranged on the visible area, the display FPC is connected to the display screen, and the FPC connector is respectively connected to the display FPC and the silver paste wiring layer.

[0005] In one embodiment, the touch area includes a button portion and a shading portion, a first shading ink layer is provided on the shading portion, a second shading ink layer is provided on the first shading ink layer, a semi-permeable ink layer is provided on the second shading ink layer, and the semi-permeable ink layer is aligned with the button portion.

[0006] In one embodiment, the thickness of the first light-shielding ink layer is 0.005 mm to 0.015 mm.

[0007] In one embodiment, the thickness of the second light-shielding ink layer is 0.005 mm to 0.015 mm.

[0008] In one embodiment, the thickness of the semi-permeable ink layer is 0.005 mm to 0.015 mm.

[0009] In one of the embodiments, the thickness of the silver paste routing layer is 0.005 mm to 0.02 mm.

[0010] In one embodiment, the touch area includes a first touch area, a second touch area and a touch connector, the touch connector is vertically connected to the first touch area and the second touch area respectively, and the first touch area is arranged in parallel with the second touch area.

[0011] In one embodiment, the display component further includes a backlight FPC, which is disposed on the display screen. The backlight FPC includes a connecting portion and a line bar, the connecting portion is provided with a connecting port, and one end of the line bar is disposed in the connecting port.

[0012] In one of the embodiments, a backlight FPC input port is provided on one side of the display FPC, and the backlight FPC input port is connected to the other end of the line strip.

[0013] In one of the embodiments, an FPC protection paper is provided on the display FPC.

[0014] Compared with the prior art, the utility model has at least the following advantages:

[0015] The utility model discloses a display module with touch buttons, by arranging a cover plate component, a film touch component and a display component, arranging a visible area and a touch area on the cover plate, installing the touch display screen on the visible area, adding a button design to the touch area, and using the film touch component to realize the shortcut key function, thereby using a small-size liquid crystal display screen to realize the function of a large-size integrated module, reducing costs and improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0017] Figure 1 This is a schematic structural diagram of a display module with touch buttons in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the rear view structure;

[0019] Figure 3 for Figure 2 A schematic diagram of the top view structure of ;

[0020] Figure 4 for Figure 1 A schematic diagram of a side view structure of;

[0021] Figure 5 for Figure 1A schematic diagram of the cover plate assembly structure;

[0022] Figure 6 for Figure 1 Schematic diagram of the film touch component structure. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] See also Figures 1 to 6 A display module 10 with touch buttons includes: a cover assembly 100, a film touch assembly 200 and a display assembly 300, wherein the cover assembly 100 includes a cover 110, and the cover 110 is provided with a visible area 111 and a touch area 112; the film touch assembly 200 includes a film substrate 210, an ITO pattern layer 220, a silver paste wiring layer 230 and an OCA adhesive layer 240, wherein the ITO pattern layer 220 is provided on one side of the film substrate 210, and the silver paste wiring layer 230 is provided on the film substrate 210. Layer 230 is screen-printed on the ITO pattern layer 220, the OCA adhesive layer 240 is arranged on the silver paste wiring layer 230, and the OCA adhesive layer 240 is bonded to the touch area 112; the display component 300 includes an FPC connector 310, a display screen 320 and a display FPC330, the display screen 320 is arranged on the visible area 111, the display FPC330 is connected to the display screen 320, and the FPC connector 310 is respectively connected to the display FPC320 and the silver paste wiring layer 230.

[0025] It should be noted that a visible area 111 is provided on the cover plate 110, so that the display screen 320 can be installed on the visible area 111. In the present embodiment, the display screen 320 is a touch display screen, and the visible area 111 is retracted by 0.5 mm to 1.0 mm relative to the operation area on the display screen 320. For example, the visible area 111 is retracted by 0.7 mm relative to the operation area, so that the visible area 111 can realize the touch function while reducing the width of the display screen frame. A touch area 112 is also provided on the cover plate 120, and buttons are provided on the touch area 112. The buttons can operate the display screen 320, thereby realizing the shortcut key function. The cover plate 110 also includes a glass substrate. In the present embodiment, the glass substrate is made of A tempered glass with a thickness of 0.7 mm to 3.0 mm is used to improve the bending strength and safety of the display screen 320. When the thickness of the glass substrate is 1.5 mm, the space occupation is reduced while ensuring the bending strength and safety performance; a film substrate 210 is set on the film touch component 200. In this embodiment, the film substrate 210 uses a PET substrate with a thickness of 0.025 mm to 0.125 mm, so that the ITO pattern layer 220 can be plated on one side of the film substrate 210. The ITO pattern layer 220 uses a yellow light process to etch a key pattern. When the thickness of the film substrate 210 is 0.075 mm, the accuracy of the key pattern is maximized. The ITO pattern layer 220 adopts a self-capacitance or mutual capacitance mode, and the resistance is 60hm / sq~150ohm / sq, which satisfies users to use the key function in different environments. When the resistance of the ITO pattern layer 220 is 105hm / sq, the user's experience of using the key function is optimal. The silver paste wiring layer 230 is screen-printed on the ITO pattern layer 220, and the silver paste wiring layer 230 is dry-etched with a laser to make the ITO pattern layer 220 pass through the silver paste wiring layer 230 and the FPC connector 310, thereby realizing that the key can operate the display screen 320. In this embodiment, the thickness of the OCA adhesive layer 240 is 0.025mm~0.125mm, and the OCA adhesive layer 240 is set Placed on the silver paste wiring layer 230, when the thickness of the OCA glue layer 240 is 0.075mm, the adhesion of the OCA glue layer 240 reaches the best, so that the film touch component 200 is bonded and fitted to the cover plate 110. In this embodiment, the film touch component 200 uses a single layer of film to achieve the key touch function, making the overall structure thinner and lighter; an FPC connector 310 is set on the display component 300, and the FPC connector 310 is connected to the film touch component 200 using ACF conductive glue, so that the film touch component 200 is connected to the display FPC330, so that the key function of the film touch component 200 can be presented on the display screen 320, realizing the shortcut key function.

[0026] See also Figure 2 and Figure 5In one embodiment, the touch area 112 includes a button portion 113 and a shading portion 114, a first shading ink layer 114a is provided on the shading portion 114, a second shading ink layer 114b is provided on the first shading ink layer 114a, a semi-transparent ink layer 114c is provided on the second shading ink layer 114b, and the semi-transparent ink layer 114c is aligned with the button portion 113.

[0027] It should be noted that the first light-shielding ink layer 114a and the second light-shielding ink layer 114b are arranged on the light-shielding portion 114. When the light source is turned on, the light irradiated on the light-shielding portion 114 is almost shielded and cannot enter the user's field of vision. The semi-transparent ink layer 114c aligned with the button portion 113 allows part of the light to penetrate into the user's field of vision, thereby making the pattern of the button portion 113 clearly visible.

[0028] Please refer again Figure 5 In one embodiment, the thickness of the first light-shielding ink layer 114a is 0.005 mm to 0.015 mm. The first light-shielding ink layer 114a can be made of black ink or white ink. When the thickness of the first light-shielding ink layer 114a is 0.010 mm, the light-shielding effect is optimal.

[0029] Please refer again Figure 5 In one embodiment, the thickness of the second light-shielding ink layer 114b is 0.005 mm to 0.015 mm. The second light-shielding ink layer 114b is generally made of black ink. When the thickness of the second light-shielding ink layer 114b is 0.010 mm, the light-shielding effect is optimal.

[0030] Please refer again Figure 5 In one embodiment, the thickness of the semi-permeable ink layer 114c is 0.005mm-0.015mm. The semi-permeable ink layer 114c generally uses white ink, and the transmittance can reach 5%-20%. When the thickness of the semi-permeable ink layer 114c is 0.010mm, the pattern presentation effect of the button part 113 is optimal.

[0031] See also Figure 6 In one embodiment, the thickness of the silver paste wiring layer 230 is 0.005 mm to 0.02 mm. When the thickness of the silver paste wiring layer 230 is 0.015 mm, the connection effect between the silver paste wiring layer 230 and the FPC connector 310 is optimal.

[0032] Please refer again Figure 1 and Figure 2In one embodiment, the touch area 112 further includes a first touch area 115, a second touch area 116 and a touch connector 117. The touch connector 117 is vertically connected to the first touch area 115 and the second touch area 116 respectively. The first touch area 115 and the second touch area 116 are arranged in parallel. Thus, the first touch area 115 is connected to the second touch area 116, making the overall structure beautiful and improving the operating experience.

[0033] Please refer again Figure 1 In one embodiment, the display component 300 also includes a backlight FPC 340, which is arranged on the display screen 320. The backlight FPC 340 includes a connecting portion 341 and a line bar 342. The connecting portion 341 is provided with a connecting port 341a, and one end of the line bar 342 is arranged in the connecting port 341a. A backlight FPC input port 331 is provided on one side of the display FPC 330, and the backlight FPC input port 331 is connected to the other end of the line bar 342. In this way, the backlight FPC 340 is connected to the display FPC 330, thereby providing a light source to the display screen 320.

[0034] Please refer again Figure 1 In one embodiment, an FPC protection paper 332 is provided on the display FPC 330 . By providing the FPC protection paper 332 , the circuits on the display FPC 330 are prevented from being damaged by oxidation.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A display module with touch buttons, characterized in that: include: A cover plate assembly, the cover plate assembly comprising a cover plate, and the cover plate is provided with a visual area and a touch area; A film touch component, the film touch component comprising a film substrate, an ITO pattern layer, a silver paste wiring layer and an OCA adhesive layer, the ITO pattern layer is arranged on one side of the film substrate, the silver paste wiring layer is screen-printed on the ITO pattern layer, the OCA adhesive layer is arranged on the silver paste wiring layer, and the OCA adhesive layer is bonded to the touch area; and A display component, the display component includes an FPC connector, a display screen, and a display FPC, the display screen is arranged on the visual area, the display FPC is connected to the display screen, and the FPC connector is respectively connected to the display FPC and the silver paste wiring layer.

2. The display module with touch buttons according to claim 1, characterized in that: The touch area includes a button part and a shading part, a first shading ink layer is arranged on the shading part, a second shading ink layer is arranged on the first shading ink layer, a semi-permeable ink layer is arranged on the second shading ink layer, and the semi-permeable ink layer is aligned with the button part.

3. The display module with touch buttons according to claim 2, characterized in that: The thickness of the first light-shielding ink layer is 0.005 mm to 0.015 mm.

4. The display module with touch buttons according to claim 2, characterized in that: The thickness of the second light-shielding ink layer is 0.005 mm to 0.015 mm.

5. The display module with touch buttons according to claim 2, characterized in that: The thickness of the semi-permeable ink layer is 0.005 mm to 0.015 mm.

6. The display module with touch buttons according to claim 1, characterized in that: The thickness of the silver paste wiring layer is 0.005 mm to 0.02 mm.

7. The display module with touch buttons according to claim 1, characterized in that: The touch area includes a first touch area, a second touch area and a touch connector. The touch connector is vertically connected to the first touch area and the second touch area respectively. The first touch area is arranged in parallel with the second touch area.

8. The display module with touch buttons according to claim 1, characterized in that: The display component also includes a backlight FPC, which is arranged on the display screen. The backlight FPC includes a connecting portion and a line bar. The connecting portion is provided with a connecting port, and one end of the line bar is arranged in the connecting port.

9. The display module with touch buttons according to claim 8, characterized in that: A backlight FPC input port is provided on one side of the display FPC, and the backlight FPC input port is connected to the other end of the line strip.

10. The display module with touch buttons according to claim 1, characterized in that: The display FPC is provided with FPC protection paper.

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