TWM558398U - Touch display device for preventing occurrence of ripples - Google Patents

Abstract

The present invention is a touch display device for preventing chopping, comprising a frame, a touch panel, a backlight module, a liquid crystal module and a light shielding patch, wherein the liquid crystal module is placed in the backlight module And the light-shielding patch is disposed between the liquid crystal module and the backlight module, the frame further includes an upper frame and a lower frame for placing the backlight module and the liquid crystal module, wherein the touch panel is mounted Above the upper frame, the display device is manipulated. By reducing the width of the light-shielding patch, the contact area of the light-shielding patch with the liquid crystal module is reduced, and one side of the light-shielding patch is degreased, so that the vibration wave generated when the display device is operated When it is delivered to the liquid crystal module, the generation of ripples is reduced, and visual interference during use is reduced.

Description

Touch display device for preventing ripple generation

The present invention is a touch panel, and particularly refers to a touch display device that prevents ripples from being generated.

Referring to FIG. 6 and FIG. 8 , the conventional touch display device includes a frame body, a backlight module 81 , a liquid crystal module 84 , and a touch panel 86 . The frame body can be a lower frame 80 and an upper frame. 85 composition. The backlight module 81 is disposed in the lower frame 80, and the backlight module 81 has at least one backlight. A light-shielding patch 83 is disposed on a surface of the backlight module 81. The light-shielding patch 83 is a double-mask adhesive strip and is annularly attached to the surface of the backlight module 81. In addition, taking the direction shown in the figure as an example, the left side of the light-shielding patch 83 has a first width W1, and the upper side of the light-shielding patch 83 has a second width W2, wherein the first width W1 is larger than the first width W1. W2, ie W1 > W2.

Please refer to FIG. 7 , which is a schematic plan view of the liquid crystal module after the liquid crystal module is placed in the lower frame. As shown in the figure, a liquid crystal module 84 is disposed on the backlight module 81 , and the liquid crystal module 84 is disposed through the light shielding patch 83 . The backlight module 81 is bonded and fixed. The liquid crystal module 84 has an upper glass plate, a lower glass plate and a liquid crystal layer. The liquid crystal layer is located between the upper glass plate and the lower glass plate, and has a plurality of liquid crystal molecules, and the liquid crystal layer is transmitted through the backlight plate. A light source is provided, and the arrangement of the liquid crystal molecules is controlled by the built-in driving chip of the touch panel to display an image on the display screen.

Please refer to FIG. 8 , which is a partial side cross-sectional view of the conventional touch display device. The upper frame 85 of the frame surrounds the lower frame 80 and the side of the backlight module 81 . The touch panel 86 is disposed above the upper frame 85. Generally, the material of the lower frame 80 and the upper frame 85 is plastic or metal. The liquid crystal module 84 and the backlight module 81 are coated and fixed by the combination of the lower frame 80 and the upper frame 85. The lower frame 80 and the upper frame 85 are protected to prevent the liquid crystal module 84 and the backlight module 81 from being damaged by collision. The touch panel 86 is disposed on the upper frame 85, and the panel can be operated by touching the touch panel 86.

When the touch display device is actually used, the touch panel 86 causes the touch panel 86 to generate a series of shock waves, and the shock waves are transmitted to the upper frame 85, the lower frame 80, and the backlight module. The group 81 is finally transmitted to the liquid crystal module 84 through the light-shielding patch 83. The liquid crystal module 84 is adhered to the backlight module 81 through the light-shielding patch 83. When the shock wave is transmitted to the light-shielding patch 83, the light-shielding patch 83 performs the liquid crystal module 84. Extrusion and pulling may cause deformation of the liquid crystal module 84 during extrusion and pulling. During the deformation of the liquid crystal module 84, the upper plate, the lower plate and the liquid crystal layer may be unevenly received at the same time. Extrusion, the ripples are formed in the liquid crystal module 84, and the ripples are displayed on the screen, causing inconvenience to the user's viewing; further, since the first width W1 is much larger than the first The width W2 is such that the area of the light-shielding patch 83 on the left side that is adhered to the liquid crystal module 84 is larger than that of the upper side of the light-shielding patch 83. When the shock waves are generated and transmitted to the light-shielding patch 83, The area of the liquid crystal module 84 that is adhered to the left side of the light-shielding patch 83 produces more pronounced ripples, and the interference is more serious. In addition, the upper frame 85 or the lower frame 80 is touched during the process of using the touch panel, so that shock waves are generated in the upper frame 85 and the lower frame 80, and the shock wave is transmitted through the light-shielding patch 83. After that, the liquid crystal module 84 is also pulled to deform the liquid crystal module 84 to generate ripples.

In view of the above problem that the existing touch panel may cause ripples in use, the main purpose of the present invention is to provide a touch display device for preventing ripples from being generated, by reducing the width of the light-shielding patch and pasting the light-shielding patch. One side of the liquid crystal module is de-glue to solve the problem of ripple generation and interference caused by ripples.

In order to achieve the foregoing objectives, the touch display device of the present invention for preventing ripples from being generated includes:

a frame

a backlight module disposed inside the frame for providing a backlight source to the touch display device for preventing ripple generation;

a liquid crystal module is disposed inside the frame and located on the backlight module, wherein the liquid crystal module has a first long side and a second long side and two opposite short sides, at the first length There is a bonding area on the side;

a liquid crystal module disposed on the backlight module to display an image through a backlight source provided by the backlight module;

a light-shielding patch attached to the opposite long sides and opposite short sides of the backlight module; the light-shielding patch has a opposite adhesive surface and a non-adhesive surface, and the adhesive surface is adhered to the backlight The non-adhesive area is in contact with the bottom surface of the liquid crystal module; wherein the light-shielding patch has an equal width on the second long side and the two short sides corresponding to the backlight module;

A touch panel is disposed on the frame.

Since the width of the light-shielding patch is reduced, the adhesion area of the liquid crystal module and the light-shielding patch is reduced, and the influence of the vibration wave generated when the touch panel is used on the liquid crystal module is reduced, thereby reducing the possibility of occurrence of ripples. In addition, one of the surfaces of the light-shielding patch is degreased, so that the liquid crystal module is only placed on the light-shielding patch, so that the liquid crystal module can be prevented from being pulled by the backlight module, thereby reducing ripples. produce.

In order to explain the touch display device for preventing the generation of ripples, please refer to FIG. 1 to FIG. 3 to explain the layered structure, so as to understand the detailed structure thereof. Referring first to FIG. 1 , a lower plate 12 is attached under an upper plate 11 , wherein the upper plate 11 and the lower plate 12 form a liquid crystal module 10 . In this embodiment, the area of the lower plate 12 is larger than the area of the upper plate 11. The upper plate 11 and the lower plate 12 may be transparent glass plates. In addition, in the embodiment, the lower plate 12 is used. The region where the lower edge is not covered by the upper plate 12 forms an adhesive region 13.

Referring to FIG. 2, a backlight module 30 is disposed in the lower frame 21, and the backlight module 30 has a backlight for providing a light source of the touch device. In addition, a light-shielding patch 40 is disposed around one surface of the backlight module 30. The light-shielding patch 40 has an adhesive surface and a non-adhesive surface 41 opposite to the non-adhesive surface 41. The adhesive surface of the light-shielding patch 40 is attached to one surface of the backlight module 30. For example, the backlight module 30 has upper and lower long sides and two left and right short sides, wherein the lower long side corresponds to the first adhesive area 13 for connecting the circuit board, and the left short side The light-shielding patch 30 has a first width W1, and the light-shielding patch 30 of the right short side and the upper long side has a second width W2, wherein the first width W1 is approximately equal to the second width W2, that is, W1 = W2 In this embodiment, the first width W1 and the second width W2 are both less than 1.5 mm.

Referring to FIG. 3 and FIG. 4 , the liquid crystal module 10 is disposed on the backlight module 30 , wherein a portion of the lower surface of the lower panel 12 covers the non-adhesive surface 41 of the shading patch 40 .

Referring to FIG. 4 , in this embodiment, a liquid crystal layer 15 , an upper frame 22 , and a touch panel 50 are further included.

The liquid crystal layer 15 is located between the upper plate 11 and the lower plate 21 and has a plurality of liquid crystal molecules. The backlights provided by the backlight module 30 can be combined with the different alignment states of the liquid crystal molecules. The image is displayed.

The upper frame 22 covers the lower frame 21, and the upper frame 22 and the lower frame 21 are coupled to each other to form a frame 20, wherein the frame 20 has a cavity structure to cover the liquid crystal module 10 and The backlight module 30; in general, the upper frame 11 and the lower frame 12 may be made of plastic or metal.

The touch panel 50 is mounted on the upper frame 22. Generally, the touch panel 50 includes a plurality of X-axis touch electrodes and a plurality of Y-axis touch electrodes, and the X-axis touches. The X-axis touch electrodes are electrically connected to each other, and the X-axis touch electrodes and the Y-axis touch electrodes are insulated from each other and vertically intersected on the touch panel 50. Touch the panel to control the operation of the panel.

By reducing the first width W1 of the light-shielding patch 40, the second width W2 is approximately equal to the first width W1, and the area where the light-shielding patch 40 and the backlight module 30 are bonded is reduced. When the panel is used, the frame 20 is vibrated to cause the ripple of the liquid crystal module 10 on the screen; in addition, the surface of the light-shielding patch 40 contacting the liquid crystal module 10 is degreased, and the shading The patch 40 and the liquid crystal module 10 are not bonded to each other, so that the liquid crystal module 10 is not arbitrarily pulled by the viscous light-shielding patch due to vibration during the touch process, thereby reducing the liquid crystal module 10 The degree of deformation, in turn, reduces the likelihood of ripples, and the improvements described above do not increase the process of making the panels, nor increase the time of the fabrication process.

In addition, please refer to FIG. 5 . In another preferred embodiment, a plurality of double-sided adhesive strips 121 are disposed on the adhesive region 13 of the liquid crystal module 10 , and both surfaces of the double-sided adhesive strips 121 are adhesive. The first bonding area 13 is adhered and fixed to the backlight module 30. Since the first bonding area 13 is not covered by the touch electrodes 50, the vibration generated during the touch process is not This will result in the generation of ripples and increase the overall structure.

10‧‧‧LCD Module
11‧‧‧Upper board
12‧‧‧ Lower board
121‧‧‧Double-sided strip
13‧‧‧bonding area
15‧‧‧Liquid layer
20‧‧‧ frame
21‧‧‧ Lower frame
22‧‧‧上上
30‧‧‧Backlight module
40‧‧‧ shading patch
41‧‧‧ Non-adhesive surface
50‧‧‧ touch panel
80‧‧‧ lower frame
81‧‧‧Backlight module
83‧‧‧Blackout patch
84‧‧‧LCD Module
85‧‧‧上上
86‧‧‧Touch panel
W1‧‧‧ first width
W2‧‧‧ second width

Figure 1: Schematic diagram of the liquid crystal module of the touch display device that prevents the ripple from being generated.

Figure 2: Schematic diagram of the frame below this creation.

Figure 3: Schematic diagram of the creation.

Figure 4: A partial side cross-sectional view of the creation.

Figure 5 is a plan view showing another embodiment of the present creation.

Figure 6: Schematic diagram of the lower frame of the existing touch panel.

Figure 7: Schematic diagram of the liquid crystal module placed under the frame of the existing touch panel.

Figure 8: A partial side cross-sectional view of a conventional touch panel.

Claims (5)

A touch display device for preventing ripples from being generated, comprising: a frame; a backlight module disposed inside the frame for providing a backlight source to the touch display device for preventing ripple generation; The liquid crystal module has a first long side and a second long side and two opposite short sides, and a first edge is disposed on the first long side. a light-shielding patch attached to the opposite long sides and opposite short sides of the backlight module; the light-shielding patch has a relatively adhesive surface and a non-adhesive surface, and the adhesive surface is adhered to In the backlight module, the non-adhesive area is in contact with the bottom surface of the liquid crystal module; wherein the light-shielding patch has an equal width on the second long side and the two short sides of the corresponding backlight module; , set on the frame. The touch display device of the present invention, wherein the frame comprises an upper frame and a lower frame, the upper frame and the lower frame covering the liquid crystal module, the backlight module and the light shielding sticker cloth. The touch display device for preventing ripple generation according to claim 1, wherein the liquid crystal module comprises a liquid crystal layer, an upper plate and a lower plate, wherein the liquid crystal layer comprises a plurality of liquid crystal molecules, and the upper plate is a glass transparent The light plate is disposed on the liquid crystal layer, and the lower plate is a glass transparent plate disposed under the liquid crystal layer, and the upper plate and the upper plate sandwich the liquid crystal layer. The touch display device of the present invention, wherein the adhesive region of the liquid crystal module has a plurality of double-sided adhesive strips, the double-sided adhesive strips bonding the liquid crystal module and the backlight module And fixed. The touch display device for preventing chopping generated according to claim 1, wherein the touch panel comprises a plurality of touch electrodes.