Display device

Abstract

The display device provided by the present disclosure adopts a first isolation structure to isolate the touch module and the module frame, so that a certain distance is maintained between the touch module and the module frame, and a second isolation structure is adopted to isolate the display module and the touch module, and a certain distance is maintained between the display module and the touch module, so that high-frequency noise and heat generated by friction between the touch module and the display module and the module frame are avoided, and the user experience is affected. Moreover, the first isolation structure and the second isolation structure do not completely fix the touch module, so that the vibration of the touch module during the operation of the tactile sensor is not greatly inhibited, that is, the intensity of the tactile perception can be effectively ensured without reducing the vibration amplitude of the touch module.

Description

Display device Technical Field

[0001] This disclosure relates to the field of display technology, and more particularly to a display device. Background Technology

[0002] Haptics is a key area of ​​technological development today. Specifically, haptic feedback enables interaction between a device and the human body through touch. Haptic feedback can be divided into two categories: vibration feedback and haptic reproduction technology.

[0003] Surface tactile reproduction technology allows users to perceive object characteristics through bare-finger touchscreens, enabling efficient and natural interaction on multimedia terminals. This technology holds significant research value and has thus garnered widespread attention from researchers both domestically and internationally. Physically, surface tactile sensation involves the interaction between the roughness of an object's surface and the skin (fingertips), resulting in varying frictional forces due to differences in surface structure. Therefore, by controlling surface friction, different tactile sensations can be simulated. Summary of the Invention

[0004] This disclosure provides a display device, including:

[0005] The module has an outer frame with an internal accommodating space, and the outer frame also has a display window.

[0006] A display module is fixed within the receiving space, with the light-emitting side of the display module facing the display window;

[0007] A touch module is fixed between the display module and the display window. The touch module includes a tactile sensor, which is configured to generate a standing wave on the surface of the touch module when it is in operation.

[0008] A first isolation structure is located between the touch module and the module frame, and the first isolation structure is configured to isolate the touch module from the module frame;

[0009] A second isolation structure is located between the display module and the touch module, and the second isolation structure is configured to isolate the display module from the touch module.

[0010] In one possible implementation, in the display device provided in the embodiments of this disclosure, the Young's modulus of both the first isolation structure and the second isolation structure is less than 0.1 MPa.

[0011] In one possible implementation, in the display device provided in the embodiments of this disclosure, the material of the first isolation structure is polydimethylsiloxane (PDMS), foam, or rubber.

[0012] The second isolation structure is made of PDMS, foam, or rubber.

[0013] In one possible implementation, in the display device provided in the embodiments of this disclosure, the second isolation structure is located at two opposite border positions of the display module.

[0014] In one possible implementation, in the display device provided in the embodiments of this disclosure, the second isolation structure disposed at a border position includes a plurality of second isolation portions disposed at intervals between each other.

[0015] In one possible implementation, in the display device provided in this disclosure embodiment, the extension direction of the two frames where the second isolation structure is located is perpendicular to the vibration propagation direction of the standing wave.

[0016] In one possible implementation, in the display device provided in the embodiments of this disclosure, the two borders where the second isolation structure is located are the short borders.

[0017] In one possible implementation, in the display device provided in the embodiments of this disclosure, the second isolation structure is fixed to the surface of the display module facing the touch module.

[0018] In one possible implementation, in the display device provided in the embodiments of this disclosure, the module outer frame includes a module side frame and a module bottom frame, and the display window is located on the side away from the module bottom frame;

[0019] The second isolation structure is also fixed to the side of the display module facing the module side frame.

[0020] In one possible implementation, in the display device provided in this disclosure embodiment, the first isolation structure is located at two opposite border positions of the touch module, and the first isolation structure and the second isolation structure are disposed at the same side border position.

[0021] In one possible implementation, in the display device provided in the embodiments of this disclosure, a first isolation structure disposed at a border position includes a plurality of first isolation portions disposed at intervals between each other.

[0022] In one possible implementation, in the display device provided in the embodiments of this disclosure, the module outer frame includes a module side frame, a module bottom frame, and a module top frame, and the module top frame has the display window;

[0023] The first isolation structure is fixed to the surface of the touch module facing the top frame of the module.

[0024] In one possible implementation, in the display device provided in this embodiment of the disclosure, the first isolation structure and the second isolation structure are covered by the top frame of the module and do not overlap with the display window.

[0025] In one possible implementation, in the display device provided in this disclosure embodiment, the tactile sensor is covered by the top frame of the module and does not overlap with the display window.

[0026] In one possible implementation, in the display device provided in this disclosure embodiment, the tactile sensor, the first isolation structure, and the second isolation structure are located at two opposite short side bezel positions;

[0027] The relationship between the width L2 of the tactile sensor at one short side border and the width L1 of the tactile sensor from the edge of the short side border satisfies:

[0028] 0 < L1 ≤ L / n;

[0029] 0 < L2 ≤ L / n;

[0030] Where n is a positive integer and L is the length of the touch module.

[0031] In one possible implementation, in the display device provided in the embodiments of this disclosure, the first isolation structure is further fixed to the side of the touch module facing the module side frame.

[0032] In one possible implementation, in the display device provided in the embodiments of this disclosure, the top frame of the module has a limiting structure on the side facing the bottom frame of the module, and the limiting structure is configured to limit the position of the touch module;

[0033] The first isolation structure is also fixed between the touch module and the limiting structure.

[0034] In one possible implementation, in the display device provided in the embodiments of this disclosure, the module frame includes a fixing component located within the receiving space, the fixing component being configured to fix the display module and the touch module;

[0035] The first isolation structure is located between the fixed component and the touch module.

[0036] In one possible implementation, in the display device provided in the embodiments of this disclosure, the module outer frame includes a module side frame and a module bottom frame, and the display window is located on the side away from the module bottom frame;

[0037] The first isolation structure is located between the touch module and the module side frame.

[0038] In one possible implementation, in the display device provided in the embodiments of this disclosure, the first isolation structure is disposed around the touch module.

[0039] In one possible implementation, in the display device provided in the embodiments of this disclosure, the tactile sensor and the second isolation structure are located at two opposite short side bezel positions, and the touch module has a light-shielding layer that obscures the tactile sensor and the second isolation structure. Attached Figure Description

[0040] Figure 1 is a schematic diagram illustrating the principle of tactile reproduction;

[0041] Figure 2 is a schematic diagram of a display device provided in an embodiment of this disclosure;

[0042] Figure 3a is a schematic diagram of a touch module in a display device provided in an embodiment of the present disclosure;

[0043] Figure 3b is a top view of a touch module in a display device provided in an embodiment of this disclosure;

[0044] Figure 3c is a schematic diagram of another structure of the touch module in the display device provided in the embodiment of this disclosure;

[0045] Figure 3d is another top view of the touch module in the display device provided in the embodiment of this disclosure;

[0046] Figure 4 is an exploded view of a display device provided in an embodiment of this disclosure;

[0047] Figure 5 is a bottom view of a display device provided in an embodiment of this disclosure;

[0048] Figure 6 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0049] Figure 7 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0050] Figure 8 is another exploded view of the display device provided in an embodiment of this disclosure;

[0051] Figure 9 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0052] Figure 10 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0053] Figure 11 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0054] Figure 12 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0055] Figure 13 is a schematic diagram of another bottom view of the display device provided in an embodiment of this disclosure;

[0056] Figure 14 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0057] Figure 15 is a schematic diagram of another bottom view of the display device provided in an embodiment of this disclosure;

[0058] Figure 16 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0059] Figure 17 is a schematic diagram of another bottom view of the display device provided in an embodiment of this disclosure;

[0060] Figure 18 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure;

[0061] Figure 19 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure. Detailed Implementation

[0062] Ultrasonic tactile reproduction devices utilize piezoelectric elements to resonate and generate standing waves, creating a pressure-film effect. This structure requires only a planar surface (such as a glass or metal plate) with a corresponding piezoelectric ceramic body or ceramic film designed on it to achieve tactile reproduction on this plane. The specific working principle of the pressure-film effect tactile reproduction device is as follows: piezoelectric material is adhered to a substrate, and a high-frequency alternating excitation source is applied. Due to the inverse piezoelectric effect, the piezoelectric material undergoes expansion and contraction deformation, causing the substrate to vibrate and generate a specific mode of vibration. When an operator touches the panel with their finger, as shown in Figure 1, the air gap between the finger and the panel continuously lifts the finger, resulting in incomplete contact between the finger and the substrate surface, thus reducing the friction on the substrate surface. By applying a certain waveform, the friction on the substrate surface can be controlled, thereby achieving a tactile sensation effect. However, the four sides of the substrate based on this principle cannot be completely fixed, because if completely fixed, the vibration amplitude of the substrate will be greatly reduced, and the tactile sensation will be significantly diminished. But if the substrate is not fixed, the contact surface between the vibrating substrate and the module will generate some noise, affecting the tactile experience.

[0063] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Furthermore, the embodiments and features in the embodiments of this disclosure can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0064] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. As used in this disclosure, the words “comprising” or “including” and similar terms mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, but do not exclude other elements or objects.

[0065] It should be noted that the dimensions and shapes of the figures in the accompanying drawings do not reflect actual proportions and are intended only to illustrate the content of this disclosure. Furthermore, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0066] Figure 2 is a schematic diagram of a display device provided in an embodiment of this disclosure. As shown in Figure 2, a display device provided in an embodiment of this disclosure includes:

[0067] The module outer frame 1 has an internal accommodating space A, and the module outer frame 1 has a display window B;

[0068] Display module 2 is fixed in the receiving space A, with the light-emitting side of display module 2 facing the display window B;

[0069] The touch module 3 is fixed between the display module 2 and the display window B. The touch module 3 includes a tactile sensor 31 (see Figures 3a to 3d for details). The tactile sensor 31 is configured to generate a standing wave C on the surface of the touch module 3 when it is in operation.

[0070] The first isolation structure 4 is located between the touch module 3 and the module frame 1. The first isolation structure 4 is configured to isolate the touch module 3 and the module frame 1.

[0071] The second isolation structure 5 is located between the display module 2 and the touch module 3, and the second isolation structure 5 is configured to isolate the display module 2 and the touch module 3.

[0072] In the display device provided in this embodiment, to avoid high-frequency noise generated by friction between the display module 2 and the module frame 1 when the touch module 3 vibrates, a first isolation structure 4 is used to isolate the touch module 3 and the module frame 1, maintaining a certain distance between them. A second isolation structure 5 is also used to isolate the display module 2 and the touch module 3, maintaining a certain distance between them. This prevents the touch module 3 from rubbing against both the display module 2 and the module frame 1, thus avoiding high-frequency noise and heat generation that could affect the user experience. Furthermore, the first isolation structure 4 and the second isolation structure 5 do not completely fix the touch module 3, therefore they do not significantly suppress the vibration of the touch module 3 when the touch sensor 31 is working. This effectively ensures the intensity of tactile perception without reducing the vibration amplitude of the touch module 3.

[0073] Optionally, in some embodiments provided in this disclosure, in order to ensure that the added isolation structure does not continuously cause the vibration of the touch module 3, the first isolation structure 4 and the second isolation structure 5 should be made of materials with low Young's modulus, such as materials with Young's modulus less than 0.1 MPa.

[0074] Specifically, in some embodiments provided in this disclosure, the material of the first isolation structure 4 can be selected as polydimethylsiloxane (PDMS), foam, or rubber, etc.; similarly, the material of the second isolation structure 5 can be selected as PDMS, foam, or rubber, etc. Furthermore, the first isolation structure 4 and the second isolation structure 5 can be made of the same material or different materials, which is not limited here.

[0075] Optionally, in some embodiments provided in this disclosure, as shown in FIG2, the display module 2 may specifically include a display screen 21 and other components 22, the other components 22 being located on the back side of the light-emitting side of the display screen 21. The display screen 21 may be, for example, a liquid crystal display screen, and the corresponding other components 22 may be a backlight module, etc. Alternatively, the display screen 21 may be an organic light-emitting display screen, and the corresponding other components 22 may be a heat dissipation module, etc. This disclosure does not limit the specific structure of the display module 2.

[0076] Figures 3a and 3c are schematic diagrams of the structure of the touch module in the display device provided in the embodiments of this disclosure; Figures 3b and 3d are top views of the touch module in the display device provided in the embodiments of this disclosure. Optionally, in some embodiments provided in this disclosure, as shown in Figure 3a, the touch module 3 may specifically include: a substrate 30, a touch structure 32, a first insulating layer 33, a touch sensor 31, and a planarization layer 34 (the planarization layer 34 may be omitted).

[0077] Specifically, the touch structure 32 can be a single-layer or multi-layer structure. The touch structure 32 can be a capacitive touch structure, composed of patterned ITO or nano-metal traces. The specific composition of the touch structure 32 is not limited here. The first insulating layer 33 serves to protect the touch structure 32 and can be formed using inorganic materials such as SiNx or SiO2, or organic materials such as PI.

[0078] Optionally, in some embodiments provided in this disclosure, as shown in FIG3a, the touch module 3 may further include: a shielding conductive layer 35 located between the first insulating layer 33 and the touch sensor 31, and a second insulating layer 36 located between the shielding conductive layer 35 and the touch sensor 31. Specifically, the shielding conductive layer 35 may be an ITO cover layer covering the entire surface. The shielding conductive layer 35 is used to isolate piezoelectric vibration signals from touch screen signals to avoid crosstalk. The shielding conductive layer 35 is generally connected to the system ground (GND) signal. The second insulating layer 36 serves to protect the shielding conductive layer 35 and may be formed using inorganic materials such as SiNx or SiO2, or organic materials such as PI.

[0079] Optionally, in some embodiments provided in this disclosure, when the tactile sensor 31 is working, a standing wave is generated on the surface of the touch module 3 facing away from the display module 2. The standing wave vibrates along the x-axis or y-axis parallel to the surface of the touch module 3, and has a certain amplitude in the direction perpendicular to the surface of the touch module 3. In order to avoid the two opposing surfaces of the touch module 3 and the display module 2 from contacting each other due to vibration and producing a collision sound when the tactile sensor 31 is working, the gap between the touch module 3 and the display module 2 should be set to be greater than the amplitude of the standing wave. Generally, the maximum amplitude generated by the standing wave is within 2 μm. Therefore, the gap between the touch module 3 and the display module 2 generally needs to be greater than 2 μm.

[0080] The specific structure of the display device provided in this disclosure is described in detail below through several specific embodiments.

[0081] Example 1:

[0082] Optionally, in some embodiments provided in this disclosure, as shown in FIG2, the module outer frame 1 includes a module side frame 13, a module bottom frame 12, and a module top frame 11, with the module top frame 11 having a display window B. The module top frame 11, module bottom frame 12, and module side frame 13 enclose an accommodating space A, within which the display module 2, touch module 3, first isolation structure 4, and second isolation structure 5 are all disposed. Specifically, the module side frame 13 can be integrally formed with the module bottom frame 12, or integrally formed with the module top frame 11. Alternatively, as shown in FIG2, a portion of the module side frame 13 can be integrally formed with the module bottom frame 12, and another portion with the module top frame 11; this is not limited here. During the assembly of the display device, the display module 2, second isolation structure 5, touch module 3, and first isolation structure 4 can be sequentially assembled on the module bottom frame 12, and finally the module top frame 11 is installed to form a complete display device.

[0083] Optionally, in some embodiments provided in this disclosure, in order to ensure that the vibration amplitude of the touch module 3 is not reduced and the intensity of tactile perception is effectively guaranteed, the first isolation structure 4 and the second isolation structure 5 only contact a portion of the frame of the touch module 3, that is, the first isolation structure 4 and the second isolation structure 5 do not completely fix the touch module 3. Figure 4 is an exploded view corresponding to the display device structure shown in Figure 2, and Figure 5 is a bottom view from the bottom frame side of the module corresponding to the display device structure shown in Figure 2, in which only some components of the display device are shown. Figure 2 can be considered as a cross-sectional view from the dashed line portion in Figure 5. Specifically, as shown in Figures 4 and 5, the first isolation structure 4 can be located at two opposite frame positions of the touch module 3, and the second isolation structure 5 can be located at two opposite frame positions of the display module 2. Furthermore, the first isolation structure 4 and the second isolation structure 5 are generally located at frame positions on the same side.

[0084] Optionally, in some embodiments provided in this disclosure, as shown in FIG2, the extension directions of the two side frames where the first isolation structure 4 and the second isolation structure 5 are located can be perpendicular to the vibration propagation direction t of the standing wave C.

[0085] Optionally, in some embodiments provided in this disclosure, as shown in FIG4, in order to avoid reducing the vibration amplitude of the touch module 3 as much as possible, the two sides where the first isolation structure 4 and the second isolation structure 5 are located can be the short side side, that is, there is no isolation structure to fix the touch module 3 at the long side side side position.

[0086] Optionally, in some embodiments provided in this disclosure, since the touch sensor 31 is opaque, to avoid it affecting the display, the touch sensor 31 should be covered by the top frame 11 of the module and should not overlap with the display window B. Specifically, the touch sensor 31, the first isolation structure 4, and the second isolation structure 5 can be located simultaneously at two opposite short side frame positions; as shown in Figure 3b, the relationship between the width L2 of the touch sensor 31 at one short side frame and the width L1 of the touch sensor 31 from the edge of the short side frame can satisfy: 0 < L1 ≤ L / n, 0 < L2 ≤ L / n; where n is a positive integer, and the specific value of n can be 5 ≤ n ≤ 100, L is the length of the touch module, and the specific value of L can be 50mm ≤ L ≤ 500mm, and L2 can be approximately twice L1. Furthermore, the width L3 of the touch sensor 31 from the display window B is ≥ 0, and the width L4 of the touch sensor 31 from the edge of the long side frame is ≥ 0. The width M of the distance from the short side edge of the window B displayed in the top frame 11 of the module is greater than or equal to L1+L2+L3, and the width N of the distance from the long side edge of the window B displayed in the top frame 11 of the module is greater than or equal to 0.

[0087] Optionally, in some embodiments provided in this disclosure, as shown in FIG2, the size of the display window B is generally smaller than the size of the touch module 3 and the display module 2. In order not to affect the display, the first isolation structure 4 and the second isolation structure 5 are covered by the module top frame 11, and the orthographic projections of the first isolation structure 4 and the second isolation structure 5 on the module bottom frame 12 do not overlap with the display window B. To avoid the touch module 3 generating high-frequency noise by rubbing against the module top frame 11 when vibrating, the first isolation structure 4 can be fixed to the surface of the touch module 3 facing the module top frame 11, that is, the first isolation structure 4 is set in the outer area of ​​the display window B, isolating the touch module 3 and the module top frame 11 without affecting the display. Specifically, the edge of the first isolation structure 4 on the surface of the touch module 3 facing the module top frame 11 can extend beyond the touch module 3 or can be within the range of the touch module 3, which is not limited here. Specifically, the shape of the first isolation structure 4 can be roughly elongated.

[0088] Figure 6 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure. Optionally, in some embodiments provided in this disclosure, a certain assembly gap is generally maintained between the edge of the touch module 3 and the module side frame 13. To avoid high-frequency noise generated by the touch module 3 rubbing against the module side frame 13 during vibration, as shown in Figure 6, the first isolation structure 4 can also be fixed to the side of the touch module 3 facing the module side frame 13. That is, the first isolation structure 4 extends from the surface of the touch module 3 facing the module top frame 11 after bending to the side of the touch module 3. Furthermore, in this disclosure, there is no explicit limitation on the length of the portion of the first isolation structure 4 extending to the side of the touch module 3. The length of the portion of the first isolation structure 4 extending to the side of the touch module 3 can be approximately the same as the thickness of the touch module 3. Specifically, as shown in Figure 8, the shape of the first isolation structure 4 can be approximately an L-shaped strip.

[0089] Optionally, in some embodiments provided in this disclosure, to avoid high-frequency noise generated by the touch module 3 rubbing against the display module 2 during vibration, the touch module 3 is stacked on top of the display module 2, in accordance with the assembly sequence of the components in the display device, as shown in Figures 2 and 6. Specifically, the second isolation structure 5 can be fixed to the surface of the display module 2 facing the touch module 3. For example, to avoid affecting normal display, the second isolation structure 5 can be fixed to the border of the non-display area on both sides of the display surface of the display module 2. Specifically, the edge of the second isolation structure 5 on the surface of the display module 2 facing the touch module 3 can extend beyond the display module 2 or be within the range of the display module 2; this is not limited here. Specifically, as shown in Figure 4, the shape of the second isolation structure 5 can be approximately elongated.

[0090] Figure 7 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure, and Figure 8 is an exploded view corresponding to the structure of the display device shown in Figure 7. Optionally, in some embodiments provided in this disclosure, there may also be a certain assembly gap between the edge of the display module 2 and the module side frame 13. As shown in Figure 7, the second isolation structure 5 can also be fixed to the side of the display module 2 facing the module side frame 13, that is, the second isolation structure 5 bends from the surface of the display module 2 facing the touch module 3 and extends to the side of the display module 2. Furthermore, in this disclosure, there is no explicit limitation on the length of the portion of the second isolation structure 5 extending to the side of the display module 2. The length of the portion of the second isolation structure 5 extending to the side of the display module 2 can be approximately the same as the thickness of the display screen 21 in the display module 2. Specifically, as shown in Figure 8, the shape of the second isolation structure 5 can be approximately an L-shaped strip.

[0091] Example 2:

[0092] Figures 9 to 12 are schematic diagrams of another structure of the display device provided in the embodiments of this disclosure. Figure 13 is a bottom view from the side of the module bottom frame corresponding to the display device structure shown in Figures 9 to 12, where only some components of the display device are shown. Figures 9 to 12 can be considered as cross-sectional views of the dashed lines in Figure 13. Optionally, in some embodiments provided in this disclosure, based on the structure provided in Embodiment 1 above, as shown in Figures 9 to 13, a limiting structure 111 can be provided on the side of the module top frame 11 facing the module bottom frame 12. The limiting structure 111 is configured to limit the position of the touch module 3. Figure 13 only illustrates a specific implementation of the limiting structure 111, and this disclosure does not limit the specific structure of the fiber structure 111.

[0093] Specifically, as shown in Figures 9 and 10, to prevent the touch module 3 from generating high-frequency noise by rubbing against the top frame 11 during vibration, the first isolation structure 4 can be fixed to the surface of the touch module 3 facing the top frame 11. That is, the first isolation structure 4 is set in the outer area of ​​the display window B, isolating the touch module 3 and the top frame 11 without affecting the display. Specifically, the edge of the first isolation structure 4 on the surface of the touch module 3 facing the top frame 11 can extend beyond the touch module 3 or be within the range of the touch module 3; this is not limited here. Specifically, the shape of the first isolation structure 4 can be approximately elongated.

[0094] Specifically, a certain assembly gap is generally maintained between the edge of the touch module 3 and the limiting structure 111. To avoid high-frequency noise generated by the touch module 3 rubbing against the limiting structure 111 during vibration, as shown in Figures 11 and 12, the first isolation structure 4 can also be fixed between the touch module 3 and the limiting structure 111. That is, the first isolation structure 4 bends from the surface of the touch module 3 facing the top frame 11 of the module and extends to the side of the touch module 3. Furthermore, in this disclosure, there is no explicit limitation on the length of the portion of the first isolation structure 4 extending to the side of the touch module 3. The length of the portion of the first isolation structure 4 extending to the side of the touch module 3 can be approximately the same as the thickness of the touch module 3. Specifically, the shape of the first isolation structure 4 can be approximately an L-shaped strip.

[0095] Figure 14 is another structural schematic diagram of the display device provided in an embodiment of this disclosure. Figure 15 is a bottom view from the bottom frame of the module corresponding to the display device structure shown in Figure 14, showing only some components of the display device. Optionally, in some embodiments provided in this disclosure, a display sample 6 can be set inside the outer frame 1 of the module according to customer needs. In this case, as shown in Figures 14 and 15, a corresponding display window D can be set in the top frame 11 of the module, and the size of the display window D should be smaller than the size of the display sample 6. The positions of the display window D and the display window B in the top frame 11 of the module can be set according to customer needs, and will not be described in detail here.

[0096] Specifically, in Embodiment 2, the specific structure of the second isolation structure 5 is the same as that in Embodiment 1, and will not be described in detail here.

[0097] Example 3:

[0098] Figure 16 is a schematic diagram of another structure of the display device provided in an embodiment of this disclosure. Optionally, in some embodiments provided in this disclosure, based on the structure provided in Embodiment 1 or Embodiment 2 above, in order to increase the firmness of fixing the display module 2 and the touch module 3, the outer frame 1 of the module may further include a fixing component 14 located in the accommodating space A. The fixing component 14 is configured to fix the display module 2 and the touch module 3. One end of the fixing component 14 may be fixed to the top frame 11 of the module, and the other end may be fixed to the bottom frame 12 of the module. This disclosure does not limit the specific structure of the fixing component 14.

[0099] Specifically, as shown in Figure 16, in order to avoid the touch module 3 rubbing against the fixing component 14 and generating high-frequency noise when vibrating, the first isolation structure 4 can be located between the fixing component 14 and the touch module 3. The first isolation structure 4 is set in the outer area of ​​the display window B, and isolates the touch module 3, the fixing component 14 and the module top frame 11 without affecting the display.

[0100] Specifically, the structure of the second isolation structure 5 in Embodiment 3 is the same as that in Embodiment 1, and will not be described in detail here.

[0101] Example 4:

[0102] Figure 17 is a bottom view of the display device provided in this embodiment of the present disclosure, viewed from the bottom frame side of the module, showing only the top frame 11 and the first isolation structure 4. Optionally, in some embodiments provided in this disclosure, based on the structures provided in Embodiment 1, Embodiment 2, or Embodiment 3, as shown in Figure 17, the shape of the first isolation structure 4 is a discontinuous graphic, that is, the first isolation structure 4 provided at a border position may include multiple first isolation portions 41 arranged at intervals. Figure 17 only illustrates one arrangement of the first isolation portion 41; the specific structure of the first isolation portion 41 is the same as the first isolation structure in Embodiment 1, Embodiment 2, or Embodiment 3, and will not be described in detail here.

[0103] Optionally, in some embodiments provided in this disclosure, based on the structures provided in Embodiment 1, Embodiment 2, or Embodiment 3 above, the shape of the second isolation structure 5 is a discontinuous graphic, that is, the second isolation structure 5 provided at a border position may include multiple second isolation portions arranged at intervals. The specific structure of the second isolation portion is the same as that of the second isolation structure in Embodiment 1, Embodiment 2, or Embodiment 3, and will not be described in detail here.

[0104] Example 5:

[0105] Figures 18 and 19 are schematic diagrams of another structure of the display device provided in the embodiments of this disclosure. Optionally, in some embodiments provided in this disclosure, in order to achieve full-screen display, as shown in Figures 18 and 19, the module outer frame 1 may include a module side frame 13 and a module bottom frame 12, that is, the module outer frame 1 does not have a module top cover, and the display window B is located on the side away from the module bottom frame 12. The module bottom frame 12 and the module side frame 13 form an accommodating space A, and the display module 2, the touch module 3, the first isolation structure 4, and the second isolation structure 5 are all disposed in the accommodating space A. Specifically, the module side frame 13 may form an integral structure with the module bottom frame 12. When assembling the display device, the display module 2, the second isolation structure 5, the touch module 3, and the first isolation structure 4 may be assembled sequentially on the module bottom frame 12 to form a complete display device.

[0106] Optionally, in some embodiments provided in this disclosure, as shown in Figures 18 and 19, to prevent the touch module 3 from generating high-frequency noise by rubbing against the module side frame 13 during vibration, the first isolation structure 4 needs to be located between the touch module 3 and the module side frame 13. Furthermore, to fix the position of the touch module 3, the first isolation structure 4 needs to be arranged around the touch module 3, that is, the first isolation structure 4 is arranged at the four edges of the touch module 3. Also, as shown in Figures 18 and 19, the tops of the first isolation structure 4, the touch module 3, and the module side frame 13 can be flush.

[0107] Optionally, in some embodiments provided in this disclosure, since the touch sensor 31 is opaque, in order to avoid it affecting the display, when the touch sensor 31 and the second isolation structure 5 are both located at the positions of two opposite short side borders, as shown in Figures 3c and 3d, the touch module 3 may have a light-shielding layer 37 that blocks the touch sensor 31 and the second isolation structure 5. The middle area of ​​the light-shielding layer 37 is a light-transmitting area. The width a of the light-shielding area in the light-shielding layer 37 from the edge of the short side border is ≥ L1+L2+L3, and the width b of the light-shielding area in the light-shielding layer 37 from the edge of the long side border is ≥ 0.

[0108] Specifically, in Embodiment 5, the specific structure of the second isolation structure 5 is the same as that in Embodiments 1, 2, 3 or 4, and will not be described in detail here.

[0109] The above five examples illustrate the display device provided by the present disclosure, and the structures of the embodiments can be combined with each other.

[0110] In the display device provided in this embodiment, to avoid high-frequency noise generated by friction between the display module 2 and the module frame 1 when the touch module 3 vibrates, a first isolation structure 4 is used to isolate the touch module 3 and the module frame 1, maintaining a certain distance between them. A second isolation structure 5 is also used to isolate the display module 2 and the touch module 3, maintaining a certain distance between them. This prevents the touch module 3 from rubbing against both the display module 2 and the module frame 1, thus avoiding high-frequency noise and heat generation that could affect the user experience. Furthermore, the first isolation structure 4 and the second isolation structure 5 do not completely fix the touch module 3, therefore they do not significantly suppress the vibration of the touch module 3 when the touch sensor 31 is working. This effectively ensures the intensity of tactile perception without reducing the vibration amplitude of the touch module 3.

[0111] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A display device, wherein, include: The module has an outer frame with an internal accommodating space, and the outer frame also has a display window. The module frame includes a fixed component located within the receiving space; A display module is fixed within the receiving space, with the light-emitting side of the display module facing the display window; A touch module is fixed between the display module and the display window. The touch module includes a tactile sensor, which is configured to generate a standing wave on the surface of the touch module when it is in operation. A first isolation structure is located between the touch module and the module frame, and the first isolation structure is configured to isolate the touch module from the module frame; A second isolation structure is located between the display module and the touch module, configured to isolate the display module from the touch module; wherein, the first isolation structure is located at two opposite edge positions of the touch module, and the second isolation structure is located at two opposite edge positions of the display module, and the first isolation structure and the second isolation structure are located at the same edge position; the shape of the first isolation structure can be a strip with an L-shaped cross-section, and the first isolation structure is located between the fixing component and the touch module; the first isolation structure and the second isolation structure are connected or in contact.

2. The display device as claimed in claim 1, wherein, The Young's modulus of both the first isolation structure and the second isolation structure is less than 0.1 MPa.

3. The display device as claimed in claim 2, wherein, The first isolation structure is made of polydimethylsiloxane (PDMS), foam, or rubber; the second isolation structure is made of PDMS, foam, or rubber.

4. The display device as claimed in claim 1, wherein, The second isolation structure, located at a border position, comprises multiple second isolation sections spaced apart from each other.

5. The display device as claimed in claim 1, wherein, The second isolation structure is located on two side frames whose extension directions are perpendicular to the vibration propagation direction of the standing wave.

6. The display device as claimed in claim 1, wherein, The second isolation structure is located on the two shorter side borders.

7. The display device as claimed in claim 1, wherein, The second isolation structure is fixed to the surface of the display module facing the touch module.

8. The display device as claimed in claim 7, wherein, The module outer frame includes a module side frame and a module bottom frame, and the display window is located on the side away from the module bottom frame; the second isolation structure is also fixed to the side of the display module facing the module side frame.

9. The display device as claimed in claim 1, wherein, The first isolation structure, located at a border position, includes a plurality of first isolation sections spaced apart from each other.

10. The display device as claimed in claim 1, wherein, The module outer frame includes a module side frame, a module bottom frame, and a module top frame, and the module top frame has the display window; the first isolation structure is fixed to the surface of the touch module facing the module top frame.

11. The display device as claimed in claim 10, wherein, The first isolation structure and the second isolation structure are covered by the top frame of the module and do not overlap with the display window.

12. The display device as claimed in claim 11, wherein, The tactile sensor is covered by the top frame of the module and does not overlap with the display window.

13. The display device as claimed in claim 12, wherein, The tactile sensor, the first isolation structure, and the second isolation structure are located at two opposite short side border positions; the relationship between the width L2 of the tactile sensor at one short side border and the width L1 of the tactile sensor from the edge of the short side border satisfies: 0 < L1 ≤ L / n; 0 < L2 ≤ L / n; where n is a positive integer and L is the length of the touch module.

14. The display device as claimed in claim 10, wherein, The first isolation structure is also fixed to the side of the touch module facing the module side frame.

15. The display device as claimed in claim 10, wherein, The top frame of the module has a limiting structure on the side facing the bottom frame of the module, and the limiting structure is configured to limit the position of the touch module; the first isolation structure is also fixed between the touch module and the limiting structure.

16. The display device as claimed in claim 1, wherein, The module frame includes a fixing component located within the receiving space, the fixing component being configured to fix the display module and the touch module; the first isolation structure is located between the fixing component and the touch module.

17. The display device according to any one of claims 1-7, wherein, The module outer frame includes a module side frame and a module bottom frame, and the display window is located on the side away from the module bottom frame; the first isolation structure is located between the touch module and the module side frame.

18. The display device as claimed in claim 17, wherein, The first isolation structure is arranged around the touch module.

19. The display device as claimed in claim 17, wherein, The tactile sensor and the second isolation structure are located at two opposite short side bezels, and the touch module has a light-shielding layer that blocks the tactile sensor and the second isolation structure.

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