CN109508086B - display screen - Google Patents

Abstract

The present invention provides a display device comprising: a display panel, an oscillator and an adhesive layer. The oscillator is arranged on one side of the display panel; the adhesive layer is arranged between the display panel and the oscillator, a part of the adhesive layer contacts the display panel, and the other part of the adhesive layer contacts the oscillator.

Description

display screen

technical field

The present invention relates to a display device, in particular to a display device with an oscillator.

Background technique

It has become a trend for display devices to pursue borderless screens, that is, the improvement of the screen ratio of display devices will be the focus of future development. However, the display device is generally provided with an ear sound component, and the ear sound component occupies part of the space of the display device, so that the screen ratio of the display area cannot be effectively increased. In addition, the design of the existing ear-audio components often causes the outflow of private audio information, and this shortcoming often causes troubles to users. In addition, most display devices also have the function of touch feedback, that is, when the user touches the display device, the display device will generate vibration feedback to inform the user that the touch input has been successfully received. Most of the display devices in the prior art use a vibration motor to generate the touch feedback function, but the vibration motor cannot adjust the touch feedback force according to the strength of the user touching the display device, so it cannot increase the number of users. The effect of perceptual sensitivity, in addition, the volume and weight of the vibration motor will limit the pursuit of thinning and light-weight display devices.

In view of this, the current display device is pursuing a high screen-to-screen ratio, and there is still room for improvement in the design of the ear-acoustic component. In addition, the display device is required to achieve thinning, light weight, and improve the user's touch sensitivity. , the design of the touch feedback component also has room for improvement.

SUMMARY OF THE INVENTION

The present invention provides a display device, and utilizes the design of the display panel and the oscillator to increase the screen ratio of the display area or reduce the risk of outflow of private audio signals generated by the oscillator, or utilize the design of the display panel and the oscillator to enhance the display The device is thinner and lighter, and the user's touch sensitivity is improved. The display device of the present invention comprises: a display panel; an oscillator disposed on one side of the display panel; and an adhesive layer disposed between the display panel and the oscillator, and a part of the adhesive layer is in contact with the display panel, and the adhesive layer The other part is in contact with the oscillator.

Description of drawings

FIG. 1(A) is a top view of a display device according to an embodiment of the present invention.

Fig. 1(B) is a cross-sectional view of the display device of the embodiment of Fig. 1(A) along the line segment A-A'.

Fig. 1(C) is a cross-sectional view of the display device of another embodiment of Fig. 1(A) along the line segment A-A'.

2(A) is a cross-sectional view of a display panel according to an embodiment of the present invention.

FIG. 2(B) is a cross-sectional view of a display panel according to another embodiment of the present invention.

FIG. 2(C) is a cross-sectional view of a display panel according to still another embodiment of the present invention.

FIG. 3(A) is a top view of a display panel according to an embodiment of the present invention.

FIG. 3(B) is a top view of a display panel according to another embodiment of the present invention.

FIG. 3(C) is a top view of a display panel according to yet another embodiment of the present invention.

FIG. 3(D) is a top view of a display panel according to yet another embodiment of the present invention.

FIG. 4(A) is a top view of a display panel according to an embodiment of the present invention.

FIG. 4(B) is a top view of a display panel according to another embodiment of the present invention.

FIG. 5(A) is a schematic diagram of a display device and a control motherboard according to an embodiment of the present invention.

FIG. 5(B) is a schematic diagram of a display device and a control motherboard according to another embodiment of the present invention.

FIG. 5(C) is a top view of a display device according to an embodiment of the present invention.

FIG. 6(A) is a schematic diagram of an adhesive layer and an oscillator according to an embodiment of the present invention.

FIG. 6(B) is a schematic diagram of an adhesive layer and an oscillator according to another embodiment of the present invention.

FIG. 7(A) is a top view of a simplified structure of a display device according to an embodiment of the present invention.

FIG. 7(B) is a top view of a simplified structure of a display device according to another embodiment of the present invention.

7(C) is a top view of a simplified structure of a display device according to yet another embodiment of the present invention.

FIG. 8 is a cross-sectional view of a display device according to another embodiment of the present invention.

FIG. 9(A) is a cross-sectional view of a display device according to another embodiment of the present invention.

FIG. 9(B) is a cross-sectional view of a display device according to another embodiment of the present invention.

【Symbol Description】

1 Display device 141 upper electrode

10 Display panel 142 Hole injection layer

20 Oscillator 143 Light Emitting Layer

30 Flexible circuit board 144 Electron injection layer

AA display area 145 lower electrode

B Non-display area 14, 15 Light emitting diode layer

A-A’ Section Line 151 Top Electrode

40 Adhesive layer 152 Light-emitting layer

21 The first electrode plate 153 The lower electrode

22 Piezoelectric material area1 The first area

23 The second electrode plate area2 The second area

19 Frame 50 Control Board

T1 first thickness S1 first welding point

T2 second thickness S2 second welding point

11(a) The third welding point of the upper polarizer S3

11(b) Fourth welding point of lower polarizer S4

12(a) The first thimble hole of the upper substrate h1

12(b) The second ejector pin hole of the lower substrate h2

13 LCD pixel unit p1 first thimble

13(a) Color filter p2 Second thimble

13(b) Liquid crystal layer 60 Touch panel

16 Backlight Module 70 Glass Cover

16(a) Upper diffuser 80 midframe

16(b) Prism sheet 16 90 Frame

16(c) Lower diffuser plate 14 LED layer

16(d) Light guide plate 65 Pressure detector

16(e) Reflector T3 Thickness

16(f) Light source

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in the present invention. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present invention can also be modified and changed for different viewpoints and applications without departing from the spirit of the present creation.

Furthermore, the ordinal numbers such as "first", "second", "third" and other terms used in the description and the claims are used to modify the corresponding elements, and they do not mean that the elements have any ordinal numbers. , does not represent the order of a certain element and another element, or the order of the manufacturing method, the use of these ordinal numbers is only used to make an element with a certain name and another element with the same name can make it clear distinguish.

In addition, the descriptions of "when" or "when" in the present invention represent solutions such as "now, before or after", and are not limited to simultaneous occurrences. Unless otherwise limited, they will be described here first. In the present invention, descriptions such as "arranged on" and the like indicate the corresponding positional relationship between the two components, and do not limit whether the two components are in contact. Furthermore, when the present invention describes multiple components or effects, if the word "or" is used between the components or effects, it means that the components or effects can exist independently, but it does not exclude that multiple components or effects can exist simultaneously.

FIG. 1(A) is a top view of a display device 1 according to an embodiment of the present invention. As shown in FIG. 1(A), the display device 1 includes a display panel 10 and an oscillator 20, wherein the display panel 10 has a display area (AA) and a non-display area (B). In this embodiment, the display surface of the display panel 10 is defined to face the Z direction (that is, the Z direction is defined as the normal direction of the display panel 10 ), and the oscillator 20 is disposed on the display panel 10 corresponding to the normal direction of the display panel 10 . the back side (ie, the opposite side of the display side). In another embodiment, the display device 1 can be a flexible display device or a curved display device, but it is not limited. If the display device 1 is a flexible or curved display device, the display surface is defined as The light emitting surface of the display panel 10 is designed with a curvature, and the oscillator 20 is correspondingly disposed on the back surface (ie, the non-light emitting surface) of the curved display panel 10 . In another embodiment, the display panel 10 can be a rectangle, a non-rectangle, a circle, a polygon, and a free-shape design, but not limited thereto. The following related embodiments will be exemplified by a display panel 10 without a curvature design, but not limited.

1(B) is a cross-sectional view of the display device 1 according to the embodiment of FIG. 1(A) . There is a first cross-section in the normal direction of the (that is, the first cross-section corresponds to the XZ plane). As shown in FIG. 1(B) , the oscillator 20 is disposed at the bottom of the display panel 10 , and in one embodiment, the display device 1 may further include an adhesive layer 40 disposed between the display panel 10 and the oscillator 20 , the oscillator 20 is connected to the bottom of the display panel 10 through the adhesive layer 40 . In one embodiment, at least a part of the adhesive layer 40 may contact the display panel 10 , for example, the upper layer of the adhesive layer 40 corresponding to the Z direction may contact the bottom of the display panel 10 corresponding to the Z direction, but not limited. In one embodiment, at least a part of the adhesive layer 40 may contact the oscillator 20 , for example, the lower layer of the adhesive layer 40 corresponding to the Z direction may contact the top of the oscillator 20 corresponding to the Z direction, but not limited thereto. In one embodiment, the material of the adhesive layer 40 can be any viscous material, such as resin, super glue, instant adhesive, foam glue, UV curing glue, hot melt glue, pressure sensitive glue, etc. ), the present invention is not limited, as long as the adhesive material that can be used to fix the oscillator 20 to the bottom of the display panel 10 falls within the scope of the present invention. In one embodiment, the thickness (T3) of the adhesive layer 40 in the normal direction of the display panel 10 may be between 10 micrometers (um) and 50 micrometers (um), but not limited.

Referring to FIGS. 1(A) and 1(B) , in one embodiment, when the display panel 10 is viewed from above the display surface of the display panel 10 , the position of the oscillator 20 may overlap the display area (AA), that is, by When the normal direction of the display panel 10 is viewed from above, the position of the oscillator 20 may be located in the display area (AA), but it is not limited. In addition, the overlap referred to here includes complete overlap and partial overlap. In another embodiment, the oscillator 20 may not overlap the display area (AA). In one embodiment, since the oscillator 20 may overlap the display area (AA), the display area (AA) may have a larger area on the display device 1 , thereby increasing the screen ratio of the display device 1 .

In addition, in one embodiment, the display device 1 may further include a circuit board, for example, the circuit board may be a flexible printed circuit (FPC) or a rigid printed circuit (RPC) ), the following embodiments all take the flexible circuit board 30 as an example, but it is not a limitation of the present invention. In one embodiment, at least a part of the display panel 10 can be electrically connected to the flexible circuit board 30. For example, in the case where the flexible circuit board 30 is provided with a timing controller (not shown), the display area ( The pixel array in AA) can be electrically connected to the flexible circuit board 30, or the flexible circuit board 30 can be electrically connected to the scan driver or data driver (not shown) on the non-display area (B) of the display panel 10. , to control the scan timing or data transfer timing of the pixels of the display panel 10 , but it is not limited. In another embodiment, when the display panel 10 is assembled with an out-cell touch panel (not shown in the figure), the flexible circuit board 30 can also be electrically connected to the touch panel, but not limited to , In another embodiment, the circuit of the touch panel can also be integrated on the TFT substrate of the display panel 10 (in-cell touch), or the circuit of the touch panel can be integrated on the CF substrate of the display panel 10 (on-cell touch) ), the flexible circuit board 30 can be electrically connected to the display panel 10 , in other words, in the case of the above-mentioned embodiment, the flexible circuit board 30 can be electrically connected to the display panel 10 and the touch panel at the same time, or can only be electrically connected to the display panel 10 and the touch panel. The electrical connection between the display panel 10 and the touch panel is not limited in the present invention. In addition, in one embodiment, the flexible circuit board 30 is a bendable structure, so it can be bent according to assembly requirements. For example, at least a part of the flexible circuit board 30 can be bent to the bottom of the display panel 10 and adjacent to the bottom of the display panel 10 . In the oscillator 20, but not limited. In one embodiment, the flexible circuit board 30 can be electrically connected with the oscillator 20, but it is not limited. It should be noted that although the flexible circuit board 30 in FIG. 1(A) is connected to the top of the display panel 10 and is partially bent at the back of the display panel 10 (ie, in the opposite direction of the Y direction), the flexible circuit board is actually 30 can be connected to different positions of the display panel 10 , for example, it can be arranged at the right side, the lower side or the left side of the display panel 10 connected to the display panel 10 . In addition, the size, shape and bending method of the flexible circuit board 30 are not limited.

In addition, as shown in FIG. 1(B) , in one embodiment, the oscillator 20 may have a first electrode plate 21 , a piezoelectric material 22 and a second electrode plate 23 . In one embodiment, the piezoelectric material 22 may be disposed between the first electrode plate 21 and the second electrode plate 23, but it is not limited. In one embodiment, when a current is applied to the oscillator 20, due to the piezoelectric effect, the piezoelectric material 22 can be deformed (eg, stretched and contracted), thereby driving the display panel 10 to vibrate, thereby generating sound resonance, but not limited to . In one embodiment, the piezoelectric material 22 may be a piezoelectric ceramic material (PZT), but not limited thereto. In one embodiment, the piezoelectric material 22 may be a polyvinylidene fluoride (PVDF) film, but it is not limited. In one embodiment, the piezoelectric material 22 may be any material capable of producing a piezoelectric effect.

FIG. 1(C) is a cross-sectional view of a display device 1 according to another embodiment of FIG. 1(A). In this embodiment, the display panel 10 may further include a frame member 19 , and the frame member 19 is disposed at the bottom of the display panel 10 (ie, the opposite side of the display surface). In one embodiment, the frame member 19 may be a metal material, such as iron, aluminum, or composite metal material, etc., but not limited, and in another embodiment, the frame member 19 may be a non-metal material, such as plastic, In yet another embodiment, the frame member 19 can also be a mixture of metal material and non-metal material, but it is not limited, as long as it can be used to provide support or protect the display The materials used for the panel 10 all fall within the scope of the present invention. In this embodiment, the adhesive layer 40 may be disposed between the frame member 19 and the oscillator 20 , that is, the oscillator 20 is connected to the frame member 19 through the adhesive layer 40 , but it is not limited thereto. In one embodiment, the oscillator 20 has a first thickness (T1) on the first cross section (ie, corresponding to the XZ plane), and the frame member 19 has a second thickness (T2) on the first cross section (for example, the frame member 19 has a second thickness (T2). thickness from side to bottom). In one embodiment, the first thickness (T1) is greater than or equal to 50% of the second thickness (T2) (ie, 0.5≤(T1/T2)), but not limited. In one embodiment, the first thickness (T1) is less than or equal to 70% of the second thickness (T2) (ie (T1/T2)≤0.7), but not limited. In one embodiment, the ratio percentage of the first thickness T1 to the second thickness T2 is greater than or equal to 50% and less than or equal to 70% (ie, 0.5≤(T1/T2)≤0.7), but not limited.

The size, shape and position of the display panel 10 , the display area (AA), the non-display area (B), the oscillator 20 , the frame member 19 or the adhesive layer 40 described above are only examples and not limitations, and the following paragraphs will have More detailed instructions.

Next, the detailed structure of the display panel 10 if it is a liquid crystal panel, an LED panel or a micro-LED panel will be described in more detail, and please refer to FIGS. 1(A) to 2(C) at the same time.

FIG. 2(A) is a cross-sectional view of the display panel 10 according to an embodiment of the present invention. The definition of the cross-sectional direction is the same as that of FIG. 1(B) , and in order to make the details of the display panel 10 clearer, FIG. The flexible circuit board 30 is drawn, but in fact, the display panel 10 of this embodiment can be connected to the flexible circuit board 30 . As shown in FIG. 2(A), the display panel 10 may include a liquid crystal pixel unit 13 (Liquid Crystal pixel unit), and the structure of the liquid crystal pixel unit 13 may include a color filter 13(a) and a liquid crystal layer 13(b) ). In this embodiment, the color filter 13(a) may include various color layers, such as a red color layer (R), a blue color layer (B), and a green color layer (G), and a light-shielding area oppositely disposed At the overlap of two color layers (not shown in the figure), but not limited. In this embodiment, the liquid crystal layer 13(b) may include liquid crystal (LC), transparent electrodes (eg, formed of ITO or IZO), insulating layers (passivation), and alignment layers (eg, formed of polyimide) Form, PI) and other components, and then form a pixel array, but not limited. In addition, in one embodiment, the display panel 10 may further include an upper substrate 12(a) and a lower substrate 12(b), and the liquid crystal pixel unit 13 may be disposed between the upper substrate 12(a) and the lower substrate 12(b). time, but not limited. In one embodiment, the display panel 10 may further include an upper polarizer 11(a) and a lower polarizer 11(b). The liquid crystal pixel unit 13, the upper substrate 12(a) and the lower substrate 12(b) may be disposed on the Between the upper polarizer 11(a) and the lower polarizer 11(b), but not limited. In one embodiment, the display panel 10 may further include a backlight module 16, and the backlight module 16 may be disposed under the lower polarizer 11(b), but not limited thereto. In one embodiment, the backlight module 16 may include an upper diffusion plate 16(a), a prism sheet 16(b), a lower diffusion plate 16(c), a light guide plate 16(d) and a reflection sheet 16(e) , the light guide plate 16(d) can be arranged above the reflection sheet 16(e) (ie, corresponding to the Z direction), the lower diffuser plate 16(c) can be arranged above the light guide plate 16(d), and the prism sheet 16(b) can be arranged Between the upper diffuser plate 16(a) and the lower diffuser plate 16(c), but not limited, the backlight module 16 may have other embodiments. In one embodiment, the backlight module 16 may further include a light source 16(f) (such as a light emitting diode, but not limited) for generating a light source, but not limited. It should be noted that the components included in the above-mentioned display panel 10 are only examples and not limitation. In fact, the display panel 10 may include more or less components (not necessarily including all the above-mentioned components), and the detailed structure of each component is the same as that of each component. The arrangement of the components can also be changed. In other words, various implementations of the liquid crystal unit, the substrate, the polarizer, and the light-emitting unit fall within the scope of the present invention.

In this embodiment, the oscillator 20 is connected to the bottom of the backlight module 16 through the adhesive layer 40 . When the oscillator 20 vibrates, it can drive the display panel 10 to vibrate together, but it is not limited. In another embodiment, a frame 19 may be disposed at the bottom of the backlight module 16 , and the oscillator 20 may be connected to the frame 19 through an adhesive layer 40 , but it is not limited thereto.

2(B) is a cross-sectional view of the display panel 10 according to another embodiment of the present invention, and the definition of the cross-sectional direction is the same as that of FIG. 1(B) , and to make the details of the display panel 10 clearer, FIG. The flexible circuit board 30 is not depicted. As shown in FIG. 2(B), the display panel 10 may include a light emitting diode layer 14 (light emitting layer), wherein the light emitting diode layer 14 may be an organic light emitting body layer (organic light emitting layer) and a quantum dot light emitting body layer (quantum dotlight emitting layer), but not limited. In this embodiment, the light emitting diode layer 14 may include red light emitting diodes, blue light emitting diodes and green light emitting diodes, but not limited thereto. In this embodiment, each light-emitting diode may include an upper electrode 141 , a hole injection layer 142 , at least one light-emitting layer 143 , an electron injection layer 144 and a lower electrode 145 , and the light-emitting layer 143 is disposed on the hole injection layer 142 Between the electron injection layer 144, the hole injection layer 142 and the electron injection layer 144 are disposed between the upper electrode 141 and the lower electrode 145, but not limited. In another embodiment, a hole transport layer (not shown) may be further included between the hole injection layer 142 and the light-emitting layer 143 , and an electron transport layer may be further included between the light-emitting layer 143 and the electron injection layer 144 (not marked in the figure), but not limited. In one embodiment, the display panel 10 may further include an upper substrate 12(a) and a lower substrate 12(b), wherein the light emitting diode layer 14 is disposed between the upper substrate 12(a) and the lower substrate 12(b), But not limited. In one embodiment, the display panel 10 may further include an upper polarizer 11(a), and the upper polarizer 11(a) is disposed above the upper substrate 12(a) (ie, corresponding to the Z direction), but it is not limited. The polarizer 11(a) can also be a circular polarizer, but it is not limited. It should be noted that the components included in the above-mentioned display panel 10 are only examples and not limitation. In fact, the display panel 10 may include more or less components (not necessarily including all the above-mentioned components), and the detailed structure of each component is the same as that of each component. The arrangement between the components can also be changed. In other words, various implementations of the light emitting diode layer, the substrate, and the polarizing plate fall within the scope of the present invention. In this embodiment, the oscillator 20 is disposed on the bottom of the lower substrate 12(b) through the adhesive layer 40 (ie, corresponding to the opposite direction of the Z direction). When the oscillator 20 vibrates, it can drive the display panel 10 to vibrate together. But not limited. In another embodiment, a frame 19 may be disposed on the bottom of the lower substrate 12(b), and the oscillator 20 is connected to the frame 19 through the adhesive layer 40, but not limited thereto.

2(C) is a cross-sectional view of the display panel 10 according to another embodiment of the present invention, and the definition of the cross-sectional direction is the same as that of FIG. 1(B) , and in order to make the details of the display panel 10 clearer, FIG. The flexible circuit board 30 is not depicted. As shown in FIG. 2(C) , the display panel 10 may include a light emitting diode layer 15 . In this embodiment, the light emitting diode layer 15 may include light emitting diodes, such as red light emitting diodes, blue light emitting diodes, and green light emitting diodes, but not limited thereto. The light emitting diode may be a micro light emitting diode (Micro LED), but is not limited. In this embodiment, each micro light-emitting diode may include at least one light-emitting layer 152, and the light-emitting layers 152 may be respectively disposed between an upper electrode 151 and a lower electrode 153, but it is not limited. In one embodiment, the display panel 10 may further include an upper substrate 12(a) and a lower substrate 12(b), wherein the light emitting diode layer 15 is disposed between the upper substrate 12(a) and the lower substrate 12(b), But not limited. In one embodiment, the display panel 10 may further include an anti-glare film 17, and the anti-glare film 17 is disposed above the upper substrate 12(a) (ie, corresponding to the Z direction), but it is not limited. It should be noted that the components included in the above-mentioned display panel 10 are only examples and not limitation. In fact, the display panel 10 may include more or less components (not necessarily including all the above-mentioned components), and the detailed structure of each component is the same as that of each component. The arrangement of the components can also be changed. In other words, various implementations of the light-emitting diode layer, the substrate, and the anti-glare film fall within the scope of the present invention. In this embodiment, the oscillator 20 is disposed on the bottom of the lower substrate 12(b) through the adhesive layer 40 (ie, corresponding to the opposite direction of the Z direction). When the oscillator 20 vibrates, it can drive the display panel 10 to vibrate together. But not limited. In another embodiment, a frame 19 may be disposed at the bottom of the lower substrate 12(b), and the oscillator 20 is connected to the frame 19 through the adhesive layer 40, but it is not limited thereto.

Next, the relative positions of the oscillator 20 , the flexible circuit board 30 and the bottom of the display panel 10 will be described, and please refer to FIGS. 1(A) to 3(D) at the same time. 3(A) to 3(D) are top views of the display panel 10 according to different embodiments of the present invention, that is, the display panel 10 is placed on the XY plane, and the display surface of the display panel 10 corresponds to the Z direction. In addition, in the embodiments of FIGS. 3(A) to 3(D) , the flexible circuit board 30 is a solution that is bent at the bottom of the display panel 10 , but it is not a limitation of the present invention. In addition, in order to make the description more detailed, the frame member 19 is not drawn in FIGS. 3(A) to 3(D) , but actually the bottom of the display panel 10 may have the frame member 19 .

FIG. 3(A) is a top view of the display panel 10 according to an embodiment of the present invention. In this embodiment, an oscillator 20 is disposed at the bottom of the display panel 10 , and the oscillator 20 has a rectangle (at least one long side and at least one short side), a square, a circle, a polygon, or a free shape (free shape). -shape) design, the oscillator 20 in the following embodiment is illustrated with a rectangular design, but it is not a limitation of the present invention. In this embodiment, the oscillator 20 is disposed adjacent to the top of the display panel 10 (that is, corresponding to the Y direction) and at the center (that is, corresponding to the X direction), and the long side of the oscillator 20 is disposed corresponding to the X direction, and the short side of the oscillator 20 is disposed corresponding to the X direction. The sides are set corresponding to the Y direction, but are not limited. In addition, the flexible circuit board 30 bent at the bottom of the display panel 10 is located on the top of the display panel 10 (ie, corresponding to the Y direction), and is adjacent to a long side of the oscillator 20 , but not limited. In this embodiment, in the Z direction, the position of the oscillator 20 may not overlap with the position of the flexible circuit board 30 , but in another embodiment, the position of the oscillator 20 may also be part of the flexible circuit board 30 . overlapping or completely overlapping. In addition, in this embodiment, in the Z direction, the oscillator 20 may completely overlap the display area (AA) of the display panel 10 , but it is not limited.

FIG. 3(B) is a top view of the display panel 10 according to another embodiment of the present invention. In this embodiment, an oscillator 20 is disposed at the bottom of the display panel 10 , and the oscillator 20 has at least one long side and at least one short side. In this embodiment, the oscillator 20 is disposed adjacent to the top (that is, corresponding to the Y direction) and the center (that is, corresponding to the X direction) of the display panel 10 , and the short side of the oscillator 20 is disposed corresponding to the X direction, and the long side of the oscillator 20 is disposed in the X direction. The sides are set corresponding to the Y direction, but are not limited. In addition, the flexible circuit board 30 bent at the bottom of the display panel 10 is located at the top of the display panel 10 (ie, corresponding to the Y direction), and is adjacent to a short side of the oscillator 20 , but in another embodiment, the oscillator 20 The position of the oscillator 20 may not overlap with the position of the flexible circuit board 30 , but it is not limited. In other embodiments, the position of the oscillator 20 may also partially or completely overlap with the flexible circuit board 30 . In addition, in this embodiment, in the Z direction, the oscillator 20 may completely overlap the display area (AA) of the display panel 10 , but it is not limited.

FIG. 3(C) is a top view of the display panel 10 according to another embodiment of the present invention. In this embodiment, an oscillator 20 is disposed at the bottom of the display panel 10 , and the oscillator 20 has at least one long side and at least one short side. In this embodiment, the oscillator 20 is disposed adjacent to the top of the display panel 10 (that is, corresponding to the Y direction), and is disposed adjacent to the side (that is, corresponding to the side of the display panel 10 in the X direction), and oscillates The short side of the oscillator 20 is arranged corresponding to the X direction, and the long side of the oscillator 20 is arranged corresponding to the Y direction, but it is not limited. In addition, the flexible circuit board 30 bent at the bottom of the display panel 10 is located at the top of the display panel 10 (ie, corresponding to the Y direction), and is adjacent to a short side of the oscillator 20, but not limited. In one embodiment, the position of the oscillator 20 may not overlap the position of the flexible circuit board 30 , but in another embodiment, the position of the oscillator 20 may also partially or completely overlap the position of the flexible circuit board 30 . In addition, in this embodiment, in the Z direction, the oscillator 20 may completely overlap the display area (AA) of the display panel 10 , but it is not limited.

FIG. 3(D) is a top view of a display panel 10 according to yet another embodiment of the present invention. In this embodiment, a plurality of oscillators 20 are disposed on the display panel 10 , and each of the oscillators 20 has at least one long side and at least one short side. In this embodiment, the (eg, two) oscillators 20 are respectively disposed adjacent to the top of the display panel 10 (ie, corresponding to the Y direction), and are respectively disposed adjacent to two sides of the display panel 10 (ie, corresponding to the X direction). The directions are located at two side positions of the display panel 10 ), and the short sides of the oscillator 20 are respectively disposed corresponding to the X direction, and the long sides of the oscillator 20 are disposed corresponding to the Y direction, but not limited. In addition, the flexible circuit board 30 bent at the bottom of the display panel 10 is located on the top of the display panel 10 (ie, corresponding to the Y direction), and is adjacent to a short side of the oscillator 20, but not limited. In one embodiment, the position of the oscillator 20 may not overlap with the position of the flexible circuit board 30 , but in another embodiment, the position of the oscillator 20 may also partially overlap the position of the flexible circuit board 30 or completely overlapping. In addition, in this embodiment, in the Z direction, the oscillator 20 may completely overlap the display area (AA) of the display panel 10 , but it is not limited.

The description of the display panel 10 , the oscillator 20 or the flexible circuit board 30 in the above-mentioned embodiments is only an example and not a limitation, and the present invention may have many different implementations. All are not a rectangle or a square design, the oscillator 20 only needs to be placed adjacent to the top of the display panel 10 (ie, corresponding to the Y direction), the relative placement positions of the display panel 10 and the oscillator 20 , the display panel 10 and the oscillator 20 The size, the shape of the display panel 10 and the oscillator 20, and the alignment of the display panel 10 and the oscillator 20 are not particularly limited, as long as the design enables the user to smoothly receive the resonant sound generated by the display panel 10 and the oscillator 20, all belong to the scope of the present invention.

Next, the size ratio of the oscillator 20 and the display panel 10 will be described, and please refer to FIG. 1(A) to FIG. 4(B) at the same time. 4(A) and 4(B) are top views of the display panel 10 according to different embodiments of the present invention, wherein the oscillator 20 is located at the bottom of the display panel 10 (ie, the opposite side of the display surface). To make the description clearer, FIGS. 4(A) and 4(B) do not draw the flexible circuit board 30 and the frame member 19, but in fact the display panel 10 may be connected with the flexible circuit board 30 or the display panel 10 may have a frame Piece 19.

FIG. 4(A) is a top view of the display panel 10 according to an embodiment of the present invention. In this embodiment, an oscillator 20 is disposed at the bottom of the display panel 10 , and the oscillator 20 and the display area (AA) of the display panel 10 can be connected to each other. Overlapping, but not limiting. As shown in FIG. 4(A) , the oscillator 20 has a first area (area1) on the XY plane, and the display area (AA) has a second area (area2) on the XY plane. In one embodiment, the ratio of the first area (area1) to the second area (area2) is greater than or equal to 5% (ie, 0.05≤(area1/area2)), but not limited. 4(B) is a top view of the display panel 10 according to another embodiment of the present invention. In this embodiment, an oscillator 20 is disposed at the bottom of the display panel 10 , and the oscillator 20 is connected to the display area (AA) of the display panel 10 . Can overlap, but not limited. As shown in FIG. 4(B), the oscillator 20 has a first area (areal) on the XY plane, the display area (AA) has a second area (area2) on the XY plane, and in this embodiment, the first area (areal) The percentage ratio of the area (areal) to the second area (area2) is less than or equal to 70% (ie (area1/area2)≤0.7), but not limited. In addition, in another embodiment, the oscillator 20 has a first area (area1) on the XY plane, the display area (AA) has a second area (area2) on the XY plane, and the first area (area1) and the second area (area1) are on the XY plane. The percentage of the proportion of the two areas (area2) is greater than or equal to 5% and less than or equal to 70% (ie, 0.05≤(area1/area2)≤0.7), but not limited. In another embodiment, if the display area (AA) of the display panel 10 and the oscillator 20 are both non-rectangular designs (not shown in the figure), the oscillator 20 and the display area (AA) of the display panel 10 are respectively located in The area ratio projected on the XY plane can also be applied to the ratio range percentages of the above-mentioned FIG. 4(A) to FIG. 4(B) , but it is not limited.

The descriptions of the display panel 10 , the display area (AA) or the oscillator 20 in the above embodiments are only examples and not limitations, and the present invention may have many different implementations.

In addition, the display device 1 (or the display panel 10 thereof) of this embodiment can also be assembled with a control motherboard 50, and the control motherboard controls the display device 1, but it is not limited. Next, the assembling method of the display device 1 and the control motherboard 50 will be described. Please refer to FIG. 1(A) to FIG. 5(C) at the same time. FIG. 5(A) to FIG. 5(C) are different embodiments of the present invention. A schematic diagram of an assembly method of the display device 1 and the control motherboard 50 .

FIG. 5(A) is a schematic diagram of the display device 1 and the control motherboard 50 according to an embodiment of the present invention. To make the description clearer, the frame member 19 is not drawn in FIG. 5(A) , but the display panel 10 of the display device 1 is actually displayed. A frame member 19 may be provided. In addition, the display device 1 of this embodiment is defined as being placed on the XY plane, the display surface of the display panel 10 is defined as facing the Z direction, and the flexible circuit board 30 is bent at the bottom of the display panel 10 (ie, the opposite side of the display surface). ), but not limited. As shown in FIG. 5(A) , the part of the flexible circuit board 30 bent at the bottom of the display panel 10 may have a first welding point ( S1 ), the oscillator 20 may have a second welding point ( S2 ), and the control board 50 may have a third welding point (S3) corresponding to the first welding point (S1) and a fourth welding point (S4) corresponding to the second welding point (S2), and through the corresponding welding of the welding points (eg, The first welding point ( S1 ) is welded with the third welding point ( S3 ), and the second welding point ( S2 ) is welded with the fourth welding point ( S4 ), so that the control main board 50 and the oscillator 20 and the flexible circuit board 30 are formed. Electrical connection. In this embodiment, the oscillator 20 and the flexible circuit board 30 do not overlap, but in another embodiment, the oscillator 20 and the flexible circuit board 30 may overlap partially or completely. Figure 5 (A ) are only examples, not limitations of the present invention.

FIG. 5(B) is a schematic diagram of a display device 1 and a control motherboard 50 according to another embodiment of the present invention. To make the description clearer, the frame member 19 is not drawn in FIG. 5(B), but the display panel of the display device 1 is actually displayed. 10 may be provided with a frame member 19 . In addition, the display device 1 of this embodiment is defined to be placed on the XY plane, the display surface of the display panel 10 is defined to face the Z direction, and the flexible circuit board 30 of this embodiment is bent at the bottom of the display panel 10 (ie The opposite side of the display side), but not limited. In addition, for convenience of description, FIG. 5(B) is presented as a side view of the display device 1 . As shown in FIG. 5(B), the portion of the flexible circuit board 30 bent at the bottom of the display panel 10 may have a first ejector pin hole (h1), and the oscillator 20 may have a second ejector pin hole (h2). The control board 50 can have a first ejector pin (p1) and a second ejector pin (p2), wherein the first ejector pin (p1) can be arranged corresponding to the first ejector pin hole (h1), and the second ejector pin (p2) can be arranged with the first ejector pin (p2). The two ejector pin holes (h2) are correspondingly arranged. When the control motherboard 50 is assembled with the display device 1, the first ejector pin (p1) can be inserted into the first ejector pin hole (h1) correspondingly, and the second ejector pin (p1) can be inserted into the second ejector pin correspondingly. The thimble hole (h2) enables the control main board 50 to be electrically connected with the oscillator 20 and the flexible circuit board 30, but is not limited. In this embodiment, the oscillator 20 and the flexible circuit board 30 do not overlap, but in another embodiment, the oscillator 20 and the flexible circuit board 30 may overlap partially or completely (for example, but not limited to sharing a top pinhole). The embodiment of FIG. 5(B) is only an example and not a limitation of the present invention.

FIG. 5(C) is a schematic diagram of a display device 1 according to an embodiment of the present invention. It should be noted that the frame member 19 is drawn in FIG. 5(C) , that is, the oscillator 20 can be disposed on the frame member 19 . In this embodiment, the frame member 19 is connected to the oscillator 20 , and the frame member 19 is made of metal or a part of metal, so the frame member 19 can be used as the ground terminal of the oscillator 20 . In other words, this embodiment can decide whether to The frame member 19 is used as a ground terminal, but it is not limited. The embodiment of FIG. 5(C) is only an example, and not a limitation of the present invention.

Next, the bonding method of the adhesive layer 40 and the oscillator 20 will be described, and please refer to FIG. 1(B), FIG. 6(A) and FIG. 6(B) at the same time.

6(A) is a schematic diagram of the adhesive layer 40 and the oscillator 20 according to an embodiment of the present invention, wherein the oscillator 20 and the adhesive layer 40 are disposed on the XY plane, and the adhesive layer 40 faces the Z direction. As shown in FIG. 6(A) , the adhesive layer 40 is a fully-fitted structure, that is, the adhesive layer 40 is completely covered on one side of the oscillator 20 , so that the side of the oscillator 20 (that is, the side facing the Z direction) can be completely fitted On the display panel 10 or the frame member 19, but not limited.

6(B) is a schematic diagram of the adhesive layer 40 and the oscillator 20 according to another embodiment of the present invention, wherein the oscillator 20 and the adhesive layer 40 are disposed on the XY plane, and the adhesive layer 40 faces the Z direction. As shown in FIG. 6(B) , the adhesive layer 40 is a partial adhesion structure, that is, the adhesive layer 40 is locally distributed on one side of the oscillator 20 , for example, the adhesive layer 40 is only distributed on the edge of the side of the oscillator 40 , and There is no adhesive layer 40 distributed in the middle part of the surface, whereby the oscillator 20 can be connected with the display panel 10 or the frame member 19 through the edge part thereof, but it is not limited. In addition, the above-mentioned solution of partial sticking is only an example and not a limitation.

Next, the shapes of the display panel 10 , the display area (AA) and the oscillator 20 will be described, and please refer to FIGS. 1(A) to 7(C) at the same time.

7(A) is a top view of a simplified structure of the display device 1 according to an embodiment of the present invention, which is disposed on the XY plane, and the display surface of the display panel 10 faces the Z direction. In addition, in order to emphasize the variation of its detailed components, FIG. 7(A) only shows the display panel 10, the display area (AA) and the oscillator 20, but in fact the display device 1 may include more components. In this embodiment, the shape of the oscillator 20 may be different from the shape of the display panel 10 or the shape of the display area (AA). In one embodiment, the shape of the display panel 10 may be a rectangle, but it is not limited. In one embodiment, the shape of the oscillator 20 may be non-rectangular, such as an ellipse, but not limited thereto. The embodiment of FIG. 7(A) is only an example and not a limitation.

7(B) is a plan view of a simplified structure of a display device 1 according to another embodiment of the present invention, which is disposed on the XY plane and the display surface of the display panel 10 faces the Z direction. In addition, FIG. 7(B) only shows the display panel 10 , the display area (AA) and the oscillator 20 , but the display device 1 may actually include more components. In this embodiment, the shape of the display panel 10 may be different from the shape of the display area (AA) or the shape of the oscillator 20 . In one embodiment, the shape of the display panel 10 may be non-rectangular, such as a circle, but it is not limited. In one embodiment, the shape of the display area (AA) may be a rectangle, but it is not limited. In addition, the shape of the oscillator 20 may be rectangular, but not limited. The embodiment of FIG. 7(B) is only an example and not a limitation.

7(C) is a top view of a simplified structure of a display device 1 according to yet another embodiment of the present invention, which is disposed on the XY plane, and the display surface of the display panel 10 faces the Z direction. In addition, FIG. 7(C) also only shows the display panel 10, the display area (AA) and the oscillator 20, but in fact the display device 1 may include more components. In this embodiment, the shape of the display area (AA) may be different from the shape of the display panel 10 or the shape of the oscillator 20 . In one embodiment, the shape of the display area (AA) may be non-rectangular, such as an ellipse, but not limited. In one embodiment, the shape of the display panel 10 may be a rectangle, but it is not limited. In one embodiment, the shape of the oscillator 20 may be rectangular, but not limited. The embodiment of FIG. 7(C) is only an example and not a limitation.

The features of the embodiments of FIGS. 7(A) to 7(C) can be arbitrarily modified or combined, that is, the shape of the display panel 10, the display area (AA) or the oscillator 20 can have different shapes according to the needs of the application, such as When the display device 1 is applied to a mobile phone or a watch, different shapes may be required. In addition, when the shape of the display panel 10 , the display area (AA) or the oscillator 20 is changed, the shape of the frame member 19 or the adhesive layer 40 can also be changed together. Likewise, the size of the components can also be changed accordingly.

The display apparatus 1 of the present invention can be combined with other devices according to different applications. 8 is a cross-sectional view of a display device 1 according to another embodiment of the present invention, wherein the display surface of the display panel 10 corresponds to the Z direction, and the definition of the cross-section is the same as that in FIG. 1(B). In this embodiment, the display device 1 further includes a touch panel 60 (out-cell touch) and a glass cover 70, wherein the display panel 10 is disposed under the touch panel 60, and the glass cover 70 can be disposed on the display The upper part (corresponding to the Z direction) of the panel 10 and the touch panel 60, but the present invention is not limited to this. In one embodiment, the circuits of the touch panel 60 can also be integrated with the display panel 10 on the TFT substrate (in-cell touch), or the circuits of the touch panel 60 and the display panel 10 can be integrated on the CF substrate (on-cell touch). touch), the present invention is not limited and is not limited to this. In addition, when the display panel 1 is applied to some electronic devices, such as but not limited to mobile phones, smart watches, and tablets, the bottom of the display panel 1 and the oscillator 20 can be covered by a middle frame 80 , and the middle frame 80 can be repositioned. Covered by an outer frame 90, but not limited. In one embodiment, since the oscillator 20 is disposed on the display panel 1, the resonance of the sound will be concentrated on the display panel 1, thereby reducing the chance of the sound flowing out of the middle frame 80 or the outer frame 90, but it is not limited.

In addition, a display device 1 (or its display panel 10 ) can also be combined with a pressure sensor 65 and an oscillator 20 to form a display device 1 with a touch feedback function, but it is not limited thereto. Next, the corresponding structural cross-sectional view (corresponding to the Z direction) of the display device 1 with the touch feedback function will be described.

FIG. 9(A) is a cross-sectional view of a display device 1 according to another embodiment of the present invention, wherein the orientation and structure of the display panel 10 can be referred to the embodiment of FIG. 1(B). In this embodiment, the display device 1 further includes a touch panel 60 , a pressure detector 65 and a glass cover 70 . The display panel 10 is disposed under the touch panel 60 , the pressure detector 65 is disposed on the touch panel 60 , and the glass cover 70 is disposed on the pressure detector 65 . Alternatively, the pressure detectors 65 can be disposed at four corners of the touch panel 60 ( FIG. 9(A ) only shows the pressure detectors 65 in two corners), surrounding the four sides of the touch panel 60 . , or covering the entire touch panel 60 .

The pressure detectors 65 are used to detect the touch pressure, that is, according to the size of the user's pressing force, the pressure detectors 65 transmit the detected touch pressure signals to the oscillator 20 to trigger the oscillator 20 oscillation. At this point, the oscillator 20 can provide touch (tactile) feedback. The user can know the effectiveness of the touch.

Further, if the display panel 10 of FIG. 1(C) is used instead, the frame member 19 can become a resonant cavity for touch feedback.

Further, the oscillator 20 can determine the amplitude (intensity) of the haptic feedback according to the pressing force of the user.

In addition, in this embodiment, when the oscillator 20 provides the function of touch feedback, the oscillation frequency is relatively low, and the frequency is greater than or equal to 1 hertz (Hz) and less than or equal to 250 Hz. In contrast, when the oscillator 20 functions as an ear sound component, the oscillation frequency of the sound is high, and the frequency is greater than or equal to 20 Hz and less than or equal to 20 kilohertz (KHz).

FIG. 9(B) is a cross-sectional view of a display device 1 according to another embodiment of the present invention. This embodiment is similar to FIG. 9(A), the difference is that the pressure detectors 65 of this embodiment are disposed between the touch panel 60 and the display panel 10. Other features can be combined or modified with reference to the embodiment of FIG. 9(A), but are not limited.

As shown in FIG. 9(A) and FIG. 9(B) , a supporting substrate 45 may be further included between the oscillator 20 and the adhesive layer 40 to enhance the touch feedback force of the oscillator 20 . The supporting substrate 45 At least a part of the support substrate 45 can be in contact with the oscillator 20, and the material of the support substrate 45 can be a metal material, such as iron, aluminum, or a composite metal material, but not limited. In another embodiment, the material of the support substrate 45 can be It is a non-metal material, such as plastic, acrylic, or composite plastic material. In yet another embodiment, the material of the support substrate 45 can also be a mixture of metal material and non-metal material, but not limited thereto. As shown in FIG. 9(A) and FIG. 9(B), in order to enhance the touch feedback force of the oscillator 20, the oscillator 20 can also be designed with a double-layer (or more) oscillator structure, and the double-layer oscillator The thickness in the Z-axis direction is greater than or equal to 0.1 mm and less than or equal to 5 mm (0.1 mm≤thickness of the double-layer oscillator≤5 mm), but not limited. In addition, in one embodiment, the thickness of the supporting substrate 45 in the Z-axis direction is greater than or equal to 0.1 mm and less than or equal to 2 mm (0.1 mm≤thickness of the supporting substrate 45≤2 mm), but not limited.

In the present invention, the display device or touch display device prepared in the foregoing embodiments can be applied to any electronic device known in the art that requires a display screen, such as monitors, mobile phones, notebook computers, tablet computers, and watches. , VR displays, cameras, cameras, music players, mobile navigation devices, TVs, car dashboards, center consoles, electronic rearview mirrors, head-up displays and other electronic devices that need to display images.

Thereby, the present invention provides an improved display device 1 , through the special composition of the display panel 10 and the oscillator 20 , it is not necessary to reserve space for the oscillator 20 around the display area (AA), thereby making the display device 1 easier Achieve the effect of a borderless screen. Alternatively, the present invention can also make the oscillator 20 drive the display device 1 to resonate, and the resonance of the sound can be concentrated to the display device 1 . When applied to an electronic device, the chance of sound outflow can be reduced. Furthermore, the present invention can be combined with the pressure detector 65 , the touch panel 60 , the display panel 10 and the oscillator 20 , so that the display device 1 also has a touch feedback function.

The above-mentioned embodiments are only examples for convenience of description, and the scope of the claims claimed in the present invention should be based on the scope of the patent application, rather than being limited to the above-mentioned embodiments.

Claims (9)

1. A display device, comprising:

a display panel;

a frame member disposed at the bottom of the display panel;

the oscillator is arranged at the bottom of the frame piece;

a middle frame covering the oscillator and the bottom of the display panel;

an outer frame covering the middle frame;

an adhesive layer disposed between the frame and the oscillator, wherein one part of the adhesive layer contacts the frame and the other part of the adhesive layer contacts the oscillator, wherein an upper layer of the adhesive layer contacts a bottom of the frame and a lower layer of the adhesive layer contacts a top of the oscillator, and when an oscillation frequency of the oscillator is greater than or equal to 1 Hz and less than or equal to 250Hz, the oscillator vibrates the display panel to provide a touch feedback function; when the oscillation frequency of the oscillator is greater than or equal to 20Hz and less than or equal to 20 kHz, the oscillator vibrates the display panel to provide the function of an ear sound component, and the generated sound is concentrated on the display panel; and

the touch panel comprises a touch panel and a glass outer cover, wherein the display panel is arranged below the touch panel, and the glass outer cover is arranged above the display panel and the touch panel.

2. The display device of claim 1, further comprising a flexible printed circuit board, the flexible printed circuit board being adjacent to the oscillator or the flexible printed circuit board at least partially overlapping the oscillator.

3. The display device of claim 1, wherein the oscillator has a first electrode plate, a piezoelectric material, and a second electrode plate, wherein the piezoelectric material is disposed between the first electrode plate and the second electrode plate.

4. The display device of claim 3, wherein the piezoelectric material is a piezoelectric ceramic material or a polyvinylidene fluoride film.

5. The display apparatus of claim 1, wherein the oscillator has a first thickness, the frame has a second thickness, and a percentage ratio of the first thickness to the second thickness ranges from 50% to 70%.

6. The display device according to claim 1, wherein the display panel has a display area, the oscillator has a first area, the display area of the display panel has a second area, and a ratio of the first area to the second area is in a percentage range greater than or equal to 5% and less than or equal to 50%.

7. The display apparatus of claim 1, further comprising a plurality of pressure sensors disposed on the display panel.

8. The display device of claim 1, wherein the adhesive layer is a partially conformable structure or a fully conformable structure.

9. The display device of claim 1, wherein the display panel has a display area, and the oscillator overlaps the display area.

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