CN113316750A

CN113316750A - Display device and electronic apparatus

Info

Publication number: CN113316750A
Application number: CN201980073714.6A
Authority: CN
Inventors: 陈松亚
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd; Royole Corp
Priority date: 2019-02-18
Filing date: 2019-02-18
Publication date: 2021-08-27
Also published as: WO2020168455A1

Abstract

A display device (10) and an electronic apparatus (1) are provided. The display device (10) comprises an induction layer (100) and a display module (200), wherein the induction layer (100) and the display module (200) are arranged in a stacked mode, or the induction layer (100) is embedded in the display module (200), the induction layer (100) detects the pressure of the outside to the display module (200) and is used for indicating whether the display module (200) is damaged or not and the damaged part of the display module (200). The display device (10) can detect whether the display module (200) is damaged or not and the damaged part, and has reference value for after-sale judgment of the display module (200).

Description

Display device and electronic apparatus

Technical Field

The present invention relates to the field of display technologies, and in particular, to a display device and an electronic apparatus.

Background

For the active matrix organic light emitting diode display module, a polymer film material with excellent bending property is usually used as a flexible cover plate to protect the display panel. Because this type display module can not be like toughened glass and reach higher surface hardness, intensity and thickness, shock resistance is relatively weak, the electronic equipment that has this flexible display module causes flexible display panel to damage very easily falling or collision in-process, and because flexible display module can not appear like the protection toughened glass on traditional smart mobile phone surface can take place local crack or breakage after receiving the impact or striking in the part, it is improper to judge from the outward appearance or flexible screen self quality problem local demonstration unusual or bad point appears, judge to cause great difficulty after sale.

Disclosure of Invention

The embodiment of the invention provides a display device which comprises a sensing layer and a display module, wherein the sensing layer and the display module are arranged in a stacked mode, or the sensing layer is embedded in the display module, the sensing layer detects the pressure of the outside on the display module and is used for indicating whether the display module is damaged or not and the damaged part of the display module.

The display device provided by the embodiment of the invention comprises the sensing layer and the display module, wherein in some possible implementation modes, the sensing layer and the display module are arranged in a stacked mode, and in other implementation modes, the sensing layer is embedded in the display module. Wherein, the response layer is used for detecting outside pressure to display module assembly to whether take place to damage to and when display module assembly took place to damage, instruct display module assembly to take place the position of damaging. The sensing layer is arranged to judge whether the damage reason of the flexible screen is caused by improper manual operation or whether local display abnormity or dead spots occur in the quality problem of the flexible screen, and the method has a reference value for after-sale judgment of the flexible screen.

An embodiment of the present invention further provides an electronic apparatus, which includes a hinge portion, a first casing, a second casing, and the display device provided in any of the above embodiments, where the hinge portion is located between the first casing and the second casing, the first casing and the second casing are used together to support the display device, and the display device corresponding to the first casing can move relative to the display device corresponding to the second casing through the hinge portion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first display device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another implementation of the first display device according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a second display device according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a third display device according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a fourth display device according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a fifth display device according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a sixth display device according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a seventh display device according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of an eighth display device according to an embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a ninth display device according to an embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a tenth display device according to an embodiment of the present invention.

Fig. 12 is a schematic structural diagram of an eleventh display device according to an embodiment of the present invention.

Fig. 13 is a schematic structural diagram of a twelfth display device according to an embodiment of the present invention.

Fig. 14 is a schematic structural diagram of a thirteenth display device according to an embodiment of the present invention.

Fig. 15 is a schematic structural diagram of a fourteenth display device according to an embodiment of the present invention.

Fig. 16 is a schematic structural diagram of a fifteenth display device according to an embodiment of the present invention.

Fig. 17 is a schematic structural diagram of a first electronic device according to an embodiment of the present invention.

Fig. 18 is a schematic structural diagram of a second electronic device according to an embodiment of the present invention.

Fig. 19 is a schematic structural diagram of a third electronic device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a first display device 10 according to an embodiment of the present disclosure. The display device 10 comprises a sensing layer 100 and a display module 200, wherein the sensing layer 100 and the display module 200 are stacked, or the sensing layer 100 is embedded in the display module 200, the sensing layer 100 detects the pressure of the outside on the display module 200 and is used for indicating whether the display module 200 is damaged or not and the damaged part of the display module 200.

The display module 200 is a flexible display module 200.

The sensing layer 100 may be an ultra-thin pressure-sensitive film or a piezoelectric film. For the specific embodiment of the sensing layer 100 being a pressure sensitive film and a piezoelectric film, refer to the following detailed description.

In some possible embodiments, the display module 200 is an integrally packaged structure, and the sensing layer 100 and the display module 200 are stacked, that is, the sensing layer 100 may be located above the display module 200 or below the display module 200. When the sensing layer 100 is located on the display module 200, the sensing layer 100 can serve as an encapsulation layer, that is, the sensing layer 100 can protect the display module 200, and can be used for detecting the pressure of the outside of the display module 200 on the display module 200 and indicating whether the display module 200 is damaged or not and indicating the damaged portion of the display module 200. Because the sensing layer 100 is located on the display module 200, when external pressure acts on the display device 10, the external pressure directly acts on the sensing layer 100, and the external pressure does not need to be transmitted to the sensing layer 100 through other layer structures, in other words, the sensing layer 100 at this moment is more sensitive to the external pressure, so that the thickness of the sensing layer 100 can be reduced on the premise that the sensing layer 100 is ensured to have higher detection precision, and the light and thin design of the display device 10 is facilitated. When the sensing layer 100 is located under the display module 200, the pressure is transmitted to the sensing layer 100 by pressing the display module 200, and then the pressure applied to the display module 200 from the outside can be better measured by different phenomena expressed by the sensing layer 100, thereby being beneficial to improving the precision of damage detection.

In other possible embodiments, the sensing layer 100 is embedded in the display module 200, that is, the sensing layer 100 is located between any two adjacent layers of the display module 200, the sensing layer 100 is embedded in the display module 200, and the sensing layer 100 and the display module 200 can be integrally formed as a whole, so that the modular design is facilitated, and the subsequent installation, disassembly, replacement and the like are facilitated. Moreover, since the sensing layer 100 is embedded in the display module 200, the sensing layer 100 can be better attached to the display module 200. Furthermore, the sensing layer 100 is attached to the display module 200, so that the sensing layer 100 can be effectively prevented from falling off from the display module 200, and the service life of the display device 10 can be prolonged.

Further, in some other possible embodiments, the sensing layer 100 may be an integral layer structure, and may be kept at the same size as the display module 200, so as to detect whether any portion of the display module 200 is damaged or not and the specific portion when the damage occurs.

Referring to fig. 2, in other possible embodiments, the sensing layer 100 may also be formed by combining a plurality of small sensing units 110 arranged at intervals, at this time, since the adjacent sensing units 110 are arranged at intervals, no mutual squeezing action is generated between the adjacent sensing units 110, so that the stress between the adjacent sensing units 110 can be well eliminated, and further the stress between the sensing layer 100 and the display module 200 is released, which is helpful for avoiding the problem of stress concentration, and if there is a stress concentration between the display module 200 and the sensing layer 100, the internal stress between the display module 200 and the sensing layer 100 may interfere with the external pressure, which may cause the condition of inaccurate detection, so that the stress concentration between the display module 200 and the sensing layer 100 can be solved by forming the sensing layer 100 by arranging the plurality of sensing units 110 at intervals, thereby improving the detection accuracy of the display device 10 in detecting the external pressure. Thereby improving the detection accuracy of the display device 10 for detecting whether the display module 200 is damaged or not and the damaged portion.

Optionally, a plurality of sensing units 110 are arranged in an array to form the sensing layer 100. When external pressure is applied to the sensing unit 110, the pressure applied to the display module 200 from the outside of the display module 200 is detected through the sensing unit 110, and the pressure is used for indicating whether the display module 200 is damaged or not and indicating the damaged position of the display module 200. When external pressure is applied to a portion between two adjacent sensing units 110, the pressure applied to the display module 200 from the outside of the display module 200 is detected by averaging the pressures detected by the two adjacent sensing units 110, and the pressure is used for indicating whether the display module 200 is damaged or not and the damaged portion of the display module 200. When external pressure acts on a plurality of adjacent sensing units 110 at the same time, a weight coefficient is distributed according to the direction of the external pressure and the distance between the center parts of the sensing units 110, and the pressure of the outside of the display module 200 to the display module 200 is calculated according to the weight coefficient distributed to the plurality of sensing units 110, and is used for indicating whether the display module 200 is damaged or not and the damaged part of the display module 200. And specifically, the smaller the distance between the direction of the external pressure and the central portion of the sensing unit 110 is, the larger the assigned weight coefficient is.

For example, it is assumed that an external pressure is simultaneously applied to the adjacent first sensing unit 110, second sensing unit 110, and third sensing unit 110, a distance between an acting direction of the external pressure and the first sensing unit 110 is d1, a distance between an acting direction of the external pressure and the second sensing unit 110 is d2, and a distance between an acting direction of the external pressure and the third sensing unit 110 is d3, when d1< d2< d3, a weight coefficient allocated to the first sensing unit 110 for calculating the external pressure is a1, a weight coefficient allocated to the second sensing unit 110 for calculating the external pressure is a2, and a weight coefficient allocated to the third sensing unit 110 for calculating the external pressure is a3, where a1> a2> a3, and a1+ a2+ a3 is 1.

The display device 10 according to an embodiment of the present invention includes a sensing layer 100 and a display module 200, in some possible embodiments, the sensing layer 100 and the display module 200 are stacked, and in other embodiments, the sensing layer 100 is embedded in the display module 200. The sensing layer 100 is used for detecting the pressure of the outside on the display module 200, and indicating whether the display module 200 is damaged or not, and indicating the damaged portion of the display module 200 when the display module 200 is damaged. Whether the damage reason of the flexible display module 200 is caused by improper manual operation or whether local display abnormality or a dead spot occurs in the quality problem of the flexible display module 200 is judged by arranging the sensing layer 100, and the reference value is provided for after-sale judgment of the flexible display module 200.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a second display device 10 according to an embodiment of the invention. The structural schematic diagram of the second display device 10 is substantially the same as the structural schematic diagram of the first display device 10, except that the sensing layer 100 is a piezoelectric layer, when the display module 200 is subjected to an external pressure, the sensing layer 100 generates a piezoelectric current, the display device 10 further includes a controller 300, and the controller 300 determines whether the display module 200 is damaged according to the magnitude of the piezoelectric current generated by the sensing layer 100.

The controller 300 may be a microprocessor or a central processing unit. The controller 300 is used for determining whether the display module 200 is damaged according to the magnitude of the piezoelectric current generated by the sensing layer 100. Specifically, since the sensing layer 100 is a piezoelectric layer, which has a piezoelectric effect, when the display module 200 is under the action of an external pressure, a weak current signal, i.e., a piezoelectric current, is generated on the sensing layer 100. The piezoelectric current will be fed back to the display device 10 through the integrated circuit in the display module 200 to make background recording of the coordinate on the display module 200 corresponding to the generated piezoelectric current, the external force value obtained according to the magnitude of the piezoelectric current and the time of generating the piezoelectric current, and the data is retained, so that when the display device 10 is maintained subsequently, the coordinate on the display module 200 corresponding to the generated piezoelectric current, the external force value obtained according to the magnitude of the piezoelectric current and the time of generating the piezoelectric current are used as the judgment of artificial damage or the failure of the display module 200 itself.

In a possible embodiment, when the display module 200 is damaged, the controller 300 further determines a location of the display module 200, which is subjected to a pressure impact, according to a location of the sensing layer 100 generating a piezoelectric current.

Specifically, since the sensing layer 100 is a piezoelectric layer, when the sensing layer is under external pressure, a piezoelectric current is generated, and therefore, a corresponding relationship exists between a portion of the sensing layer 100 generating the piezoelectric current and a portion of the display module 200 under pressure impact. When the display module 200 is under external pressure, a weak piezoelectric current is generated on the sensing layer 100. The piezoelectric current will be fed back to the display device 10 for background recording and data retention through the integrated circuit in the display module 200 to generate the piezoelectric current corresponding to the coordinates on the display module 200. When the damage detection of the display module 200 is required, the data recorded in the background of the display device 10 can be used as a reference, and the damaged portion of the display module 200 can be determined according to the portion generating the piezoelectric current.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a third display device 10 according to an embodiment of the invention. The structural schematic diagram of the third display device 10 is substantially the same as the structural schematic diagrams of the first and second display devices 10, except that when the sensing layer 100 and the display module 200 are stacked, a double-sided tape 400 is disposed between the sensing layer 100 and the display module 200, and the double-sided tape 400 is used to fixedly connect the sensing layer 100 and the display module 200.

Wherein the double-sided adhesive tape 400 is an ultrathin high-resilience double-sided adhesive tape 400.

In an embodiment, the double-sided tape 400 is a whole layer of double-sided tape 400, that is, the double-sided tape 400 is a whole block, and is used to fixedly connect the sensing layer 100 and the display module 200, so that the sensing layer 100 is tightly attached to the display module 200, thereby allowing external pressure to be well transmitted to the sensing layer 100 through the display module 200, and then the external pressure can be accurately detected through the sensing layer 100.

In another embodiment, the double-sided tape 400 includes a plurality of colloid units 410 arranged at intervals. Optionally, the colloid units 410 arranged at intervals are arranged in an array. The colloid units 410 arranged at intervals bond the induction layer 100 on the display module 200, and no direct contact exists between the adjacent colloid units 410, so that the internal stress generated between the adjacent colloid units 410 can be well eliminated, the internal stress between the induction layer 100 and the display module 200 is further eliminated, the problem of stress concentration generated between the induction layer 100 and the display module 200 is favorably solved, and the service life of the display device 10 can be prolonged.

Furthermore, the gap between the adjacent colloid units 410 corresponding to the edge of the display module 200 is a first gap, the gap between the adjacent colloid units 410 corresponding to the middle of the display module 200 is a second gap, and the first gap is larger than the second gap. Because the edge of display module assembly 200 is when laminating with response layer 100, stress concentration's problem appears more easily, consequently, when the first clearance between the adjacent colloid unit 410 that corresponds display module assembly 200 edge setting is greater than the second clearance between the adjacent colloid unit 410 that corresponds display module assembly 200 middle part and set up, stress concentration's problem appears between the colloid unit 410 that can be better avoids display module assembly 200 edge setting, and then improve the stress concentration problem when laminating of display module assembly 200 edge and response layer 100.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a fourth display device 10 according to an embodiment of the invention. The structural schematic diagram of the fourth display device 10 is substantially the same as the structural schematic diagrams of the first and second display devices 10, except that the display device 10 further includes a display panel 500 and a flexible cover 600, which are stacked, and the sensing layer 100 is located on a side of the display panel 500 away from the flexible cover 600.

The flexible cover 600 covers the surface of the display panel 500. The flexible cover 600 is a polyimide material (PI material). Polyimide is one of organic polymer materials with the best comprehensive performance, resists high temperature of more than 400 ℃, has a long-term use temperature range of-200 to 300 ℃, has no obvious melting point on part and has high insulating property. The flexible cover 600 forms part of the external structure of the display device 10, and is used for protecting the display panel 500, and functions as an encapsulation layer and a protection layer. The flexible cover 600 and the display panel 500 may be fixedly connected by a transparent optical adhesive.

The display panel 500 is a flexible display panel 500.

In the present embodiment, the sensing layer 100 is fixed on the surface of the display panel 500 away from the flexible cover 600 by the double-sided tape 400. Wherein the double-sided adhesive tape 400 may be an ultra-thin high-resilience double-sided adhesive tape 400. Because the sensing layer 100 is far away from the flexible cover plate 600 relative to the display panel 500, when external pressure acts on the flexible cover plate 600, the external pressure is transmitted to the display panel 500 through the flexible cover plate 600, and then transmitted to the sensing layer 100 through the display panel 500, the sensing layer 100 can be used for judging whether the damage reason of the flexible display panel 500 is caused by improper manual operation or whether local display abnormity or dead spots occur in the quality problem of the flexible display panel 500, and the sensing layer has reference value for after-sale judgment of the flexible display panel 500. And the sensing layer 100 is far away from the flexible cover plate 600 relative to the display panel 500, so that the sensing layer 100 can be prevented from shielding the display panel 500, and the display effect of the display device 10 can be improved.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a fifth display device 10 according to an embodiment of the disclosure. The structural schematic diagram of the fifth display device 10 is substantially the same as the structural schematic diagrams of the first and second display devices 10, except that the display device 10 further includes a display panel 500 and a flexible cover 600, which are stacked, and the sensing layer 100 is embedded in the display panel 500.

The display panel 500 is a flexible display panel 500. The flexible cover 600 covers the surface of the display panel 500. The flexible cover 600 is a polyimide material (PI material). The flexible cover 600 forms part of the external structure of the display device 10, and is used for protecting the display panel 500, and functions as an encapsulation layer and a protection layer. The flexible cover 600 and the display panel 500 may be fixedly connected by a transparent optical adhesive.

In the present embodiment, the sensing layer 100 is embedded in the display panel 500. I.e., the sensing layer 100 may be located between any adjacent two layer structures within the display panel 500. At this time, the sensing layer 100 and the display panel 500 may be integrally formed as a unitary structure, which is convenient for subsequent installation, removal, replacement, and the like. When the sensing layer 100 is embedded in the display panel 500, the distance between the sensing layer 100 and the flexible cover 600 is closer, so that the thickness of the sensing layer 100 is reduced on the premise that the display device 10 has higher detection precision, and the light and thin design of the display device 10 is realized.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a sixth display device 10 according to an embodiment of the disclosure. The structural schematic diagram of the sixth display device 10 is substantially the same as the structural schematic diagrams of the first and second display devices 10, except that the display device 10 further includes a display panel 500 and a flexible cover 600, which are stacked, and the sensing layer 100 is located between the display panel 500 and the flexible cover 600.

The display panel 500 is a flexible display panel 500. The flexible cover 600 covers the surface of the sensing layer 100, and the sensing layer 100 covers the surface of the display panel 500. The flexible cover 600 is a polyimide material (PI material). The flexible cover 600 forms part of the external structure of the display device 10, and is used for protecting the display panel 500, and functions as an encapsulation layer and a protection layer. The flexible cover 600 and the sensing layer 100 and the display panel 500 may be fixedly connected by a transparent optical adhesive.

In the present embodiment, the sensing layer 100 is located between the flexible cover 600 and the display panel 500. At this moment, the distance between the sensing layer 100 and the flexible cover plate 600 can be closer, when external pressure acts on the flexible cover plate 600, the external pressure can be quickly transmitted to the sensing layer 100, and then the thickness of the sensing layer 100 can be reduced on the premise that the display device 10 has higher detection precision, so that the light and thin design of the display device 10 is realized.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a seventh display device 10 according to an embodiment of the disclosure. The structure of the seventh display device 10 is substantially the same as the structure of the first and second display devices 10, except that the display device 10 further includes a display panel 500 and a flexible cover 600, and the sensing layer 100 is located on a side of the flexible cover 600 away from the display panel 500.

The display panel 500 is a flexible display panel 500. The sensing layer 100 covers the surface of the flexible cover 600, and the flexible cover 600 covers the surface of the display panel 500. The flexible cover 600 is a polyimide material (PI material). The sensing layer 100 forms part of the external appearance structure of the display device 10, and together with the flexible cover 600, serves to protect the display panel 500, and serves as an encapsulation layer and a protection layer. The sensing layer 100 and the flexible cover 600 and the display panel 500 may be fixedly connected by a transparent optical adhesive.

In the present embodiment, the flexible cover 600 is located between the sensing layer 100 and the display panel 500. At this time, the external pressure may directly act on the sensing layer 100, so that the thickness of the sensing layer 100 may be reduced to the maximum extent on the premise of ensuring that the display device 10 has higher detection accuracy, thereby implementing a light and thin design of the display device 10. And since the sensing layer 100 is located on the surface of the flexible cover 600, the flexible cover 600 and the display panel 500 can be further protected, which helps to prolong the service life of the display device 10.

Referring to fig. 9, fig. 9 is a schematic structural diagram of an eighth display device 10 according to an embodiment of the present invention. The structural schematic diagram of the eighth display device 10 is substantially the same as the structural schematic diagrams of the fourth to seventh display devices 10, except that a first optical adhesive 450 is disposed between the display panel 500 and the flexible cover 600, the first optical adhesive 450 is used to fixedly connect the display panel 500 and the flexible cover 600, the display panel 500 includes a touch layer 510, a second optical adhesive 520, a polarizer 530, a light emitting layer 540, a third optical adhesive 550, and a substrate 560, which are sequentially stacked, and the touch layer 510 is disposed adjacent to the flexible cover 600 relative to the second optical adhesive 520.

The first optical glue 450 is a transparent optical glue. In one embodiment, the first optical adhesive 450 is a whole layer of adhesive and is disposed between the flexible cover 600 and the display panel 500 to fixedly connect the flexible cover 600 and the display panel 500.

The touch layer 510 includes driving electrodes and sensing electrodes arranged in a crossing manner, and is used for implementing a touch function of the display device 10.

The second optical adhesive 520 is also a transparent optical adhesive, and the second optical adhesive 520 may be a whole layer of optical adhesive to fixedly connect the touch layer 510 and the polarizer 530. The second optical adhesive 520 may also be formed by combining a plurality of colloid units 410 arranged at intervals, which is helpful for eliminating the internal stress formed between the adjacent colloid units 410, thereby eliminating the internal stress between the touch layer 510 and the polarizer 530, and prolonging the service life of the display device 10.

The light-emitting layer 540 is an Active-matrix organic light-emitting diode (OLED) light-emitting device layer.

The third optical adhesive 550 is also a transparent optical adhesive, and the third optical adhesive 550 can be a whole layer of optical adhesive to fixedly connect the light-emitting layer 540 and the substrate 560. The third optical adhesive 550 may also be formed by combining a plurality of colloid units 410 arranged at intervals, which is helpful for eliminating the internal stress formed between adjacent colloid units 410, and further eliminating the internal stress between the light-emitting layer 540 and the substrate 560, so as to prolong the service life of the display device 10.

The substrate 560 is a flexible substrate 560, and may be a Polyimide (PI) material or a polyethylene terephthalate (PET) material.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a ninth display device 10 according to an embodiment of the disclosure. The structural schematic diagram of the ninth display device 10 is substantially the same as the structural schematic diagram of the first display device 10, except that the sensing layer 100 is a pressure-sensitive layer 110, when the display module 200 is subjected to an external pressure and a pressure value is greater than a preset threshold value, the sensing layer 100 may present a preset color, and the preset color is used for indicating that the display module 200 is damaged.

In one possible embodiment, the sensing layer 100 may present a predetermined color for indicating the damage degree of the display module 200.

For example, when the sensing layer 100 is the pressure sensitive layer 110, the display module 200 is under an external pressure, the sensing layer 100 will appear red, the sensing layer 100 appears dark red to indicate that the display module 200 at the corresponding portion is under a larger external pressure, and light red to indicate that the display module 200 at the corresponding portion is under a smaller external pressure. At this time, the preset color is the same color.

It is understood that in other embodiments, the sensing layer 100 may exhibit different colors, and the different colors represent different pressure values. For example, when the display module 200 is subjected to an external pressure, the sensing layer 100 may show colors of red, orange, yellow, green, etc., and the red color of the sensing layer 100 indicates that the external pressure applied to the display module 200 at the corresponding portion is the greatest, the second color is orange, the second color is yellow, and the last color is green. At this time, the preset colors are different colors.

In another possible embodiment, the area size of the predetermined color presented by the sensing layer 100 is used to indicate the damaged area size of the display module 200.

Since the sensing layer 100 is the pressure sensitive layer 110, the sensing layer 100 can show a predetermined color under the action of external pressure, and therefore, the area size of the predetermined color shown by the sensing layer 100 and the damaged area size of the display module 200 have a corresponding relationship.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a tenth display device 10 according to an embodiment of the disclosure. The structure diagram of the tenth display device 10 is substantially the same as the structure diagram of the ninth display device 10, except that the pressure-sensitive layer 110 includes a first thin film layer 111, a separation layer 112 and a second thin film layer 113, which are sequentially stacked, the separation layer 112 is used for separating the first thin film layer 111 from the second thin film layer 113, the first thin film layer 111 is composed of first particles 111a, the second thin film layer 113 is composed of second particles 113a, and when a pressure value is greater than a preset threshold value, the separation layer 112 is broken, and the first particles 111a and the second particles 113a react to present the preset color.

The first particles 111a and the second particles 113a are chemical particles, and when an external pressure is applied to the display module 200, the isolation layer 112 between the first particles 111a and the second particles 113a is broken, so that the first particles 111a and the second particles 113a generate an irreversible chemical reaction and present a specific color.

Referring to fig. 12, fig. 12 is a schematic structural diagram of an eleventh display device 10 according to an embodiment of the disclosure. The structural schematic diagram of the eleventh display device 10 is substantially the same as that of the tenth display device 10, except that the display device 10 further includes a display panel 500 and a flexible cover 600, which are stacked, a first glue 521 is disposed between the display panel 500 and the flexible cover 600, the first glue 521 is used to fixedly connect the display panel 500 and the flexible cover 600, the display panel 500 includes a touch layer 510, a second glue 522, a polarizer 530, a light-emitting layer 540, a third glue 551 and a substrate 560, which are stacked in sequence, the touch layer 510 is disposed adjacent to the flexible cover 600 relative to the second glue 522, the sensing layer 100 is disposed on a side of the display panel 500 away from the flexible cover 600, and the first thin film layer 111 is disposed adjacent to the substrate 560 relative to the second thin film layer 113, the first film layer 111 and the substrate 560 are fixedly connected by a double-sided tape 400.

The first colloid 521 is a transparent optical adhesive. In one embodiment, the first adhesive 521 is a whole layer of adhesive and is disposed between the flexible cover 600 and the display panel 500 to fixedly connect the flexible cover 600 and the display panel 500.

The second adhesive body 522 is also a transparent optical adhesive, and the second adhesive body 522 may be a whole layer of optical adhesive to fixedly connect the touch layer 510 and the polarizer 530. The second colloid 522 may also be formed by combining a plurality of colloid units 410 arranged at intervals, which is helpful for eliminating the internal stress formed between the adjacent colloid units 410, thereby eliminating the internal stress between the touch layer 510 and the polarizer 530, and prolonging the service life of the display device 10.

The third encapsulant 551 is also transparent optical adhesive, and the third encapsulant 551 can be a whole layer of optical adhesive to fixedly connect the light-emitting layer 540 and the substrate 560. The third colloid 551 may also be formed by combining a plurality of colloid units 410 arranged at intervals, which is helpful for eliminating the internal stress formed between adjacent colloid units 410, and further eliminating the internal stress between the light-emitting layer 540 and the substrate 560, and thus prolonging the service life of the display device 10.

The substrate 560 is a flexible substrate 560, and may be a Polyimide (PI) material or a polyethylene terephthalate (PET) material. The substrate 560 is fixedly connected with the first film layer 111 through a double-sided adhesive tape 400, and the double-sided adhesive tape 400 is an ultrathin high-resilience double-sided adhesive tape 400.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a twelfth display device 10 according to an embodiment of the disclosure. The structure diagram of the twelfth display device 10 is substantially the same as the structure diagram of the ninth display device 10, except that the display device 10 further includes a display panel 500 and a flexible cover 600, which are stacked, a first adhesive 521 is disposed between the display panel 500 and the flexible cover 600, the first adhesive 521 is used to fixedly connect the display panel 500 and the flexible cover 600, the display panel 500 includes a touch layer 510, a second adhesive 522, a polarizer 530, a light emitting layer 540, a third adhesive 551 and a substrate 560, which are sequentially stacked, the touch layer 510 is disposed adjacent to the flexible cover 600 relative to the second adhesive 522, and the sensing layer 100 is disposed between the substrate 560 and the light emitting layer 540.

The sensing layer 100 and the substrate 560 and the sensing layer 100 and the light-emitting layer 540 are connected by optical glue. At this moment, the distance between response layer 100 and the flexible apron 600 is more nearly, acts on flexible apron 600 when external pressure, can be very fast transmit to response layer 100 through flexible apron 600, then the size of rethread response layer 100 detection external pressure, and then the impaired position when instructing display module assembly 200 whether to take place to damage and take place to damage.

Referring to fig. 14, fig. 14 is a schematic structural diagram of a thirteenth display device 10 according to an embodiment of the disclosure. The structure diagram of the thirteenth display device 10 is substantially the same as the structure diagram of any one of the display devices 10, except that the middle portion 101 of the sensing layer 100 corresponds to a first pressure threshold, the edge portion 102 of the sensing layer 100 corresponds to a second pressure threshold, and the first pressure threshold is greater than the second pressure threshold.

Specifically, because the stress distribution at the middle portion of the display module 200 is uniform, and the stress distribution at the edge portion of the display module 200 is not uniform, the edge portion of the display module 200 is more easily damaged compared to the middle portion of the display module 200. In other words, the edge portion of the display module 200 is more sensitive to the external pressure. When the first pressure threshold corresponding to the middle portion 101 of the sensing layer 100 is greater than the second pressure threshold corresponding to the edge portion 102 of the sensing layer 100, different bearing capacities of the middle portion and the edge portion of the display module 200 to the external pressure can be detected more accurately, and the sensitivity of the display device 10 to the external pressure detection can be increased.

In one embodiment, the first pressure threshold corresponding to the middle portion 101 of the sensing layer 100 is a constant value, and the second pressure threshold corresponding to the edge portion 102 of the sensing layer 100 is also a constant value, so that the sensing layer 100 can be more conveniently and easily manufactured, and the detection accuracy of the external pressure can be satisfied.

In another embodiment, the first pressure threshold corresponding to the middle portion 101 of the sensing layer 100 is a gradually changing value, the second pressure threshold corresponding to the edge portion 102 of the sensing layer 100 is also a gradually changing value, and the pressure threshold of the sensing layer 100 gradually decreases from the middle portion 101 of the sensing layer 100 to the edge portion 102 of the sensing layer 100. In a possible embodiment, the pressure threshold of the sensing layer 100 is uniformly reduced from the middle portion 101 of the sensing layer 100 toward the edge portion 102 of the sensing layer 100, so that the actual stress distribution of the display module 200 itself can be more closely fitted, which helps to improve the accuracy of the display device 10 for detecting the external pressure.

Referring to fig. 15, fig. 15 is a schematic structural diagram of a fourteenth display device 10 according to an embodiment of the disclosure. The structural diagram of the fourteenth display device 10 is substantially the same as that of the thirteenth display device 10, except that the thicknesses of the middle portion 101 of the sensing layer 100 and the edge portion 102 of the sensing layer 100 are kept the same, and the density of the middle portion 101 of the sensing layer 100 is less than that of the edge portion 102 of the sensing layer 100.

Specifically, when the thicknesses corresponding to the respective portions of the sensing layer 100 are uniform, the thickness of the entire display device 10 can be ensured to be uniform, thereby facilitating to eliminate the problem of stress concentration inside the display device 10. When the density of the middle portion 101 of the sensing layer 100 is less than the density of the edge portion 102 of the sensing layer 100, since the material of the middle portion 101 of the sensing layer 100 is more sparse and the material of the edge portion 102 of the sensing layer 100 is more dense, when the middle portion 101 of the sensing layer 100 is acted by an external pressure, the sensitivity to the external pressure is lower, and when the edge portion 102 of the sensing layer 100 is acted by the external pressure, the sensitivity to the external pressure is higher, that is, the pressure threshold corresponding to the middle portion 101 of the sensing layer 100 is greater than the pressure threshold of the edge portion 102 of the sensing layer 100. Because the stress distribution at the middle of the display module 200 is uniform and the stress distribution at the edge of the display module 200 is non-uniform, the edge of the display module 200 is more easily damaged than the middle of the display module 200. By setting the density of the edge portions 102 of the sensing layer 100 to be greater, the edge portions 102 of the sensing layer 100 can be made more sensitive to the detection of the external pressure.

Referring to fig. 16, fig. 16 is a schematic structural diagram of a fifteenth display device 10 according to the embodiment of the present invention. The schematic structural diagram of the fifteenth display device 10 is substantially the same as the schematic structural diagram of the thirteenth display device 10, except that the densities of the middle portion 101 of the sensing layer 100 and the edge portion 102 of the sensing layer 100 are kept consistent, and the thickness of the middle portion 101 of the sensing layer 100 is smaller than the thickness of the edge portion 102 of the sensing layer 100.

Specifically, when the density of the middle portion 101 of the sensing layer 100 is consistent with the density of the edge portion, the preparation of the edge sensing layer 100 may be performed, which helps to simplify the preparation process of the sensing layer 100.

Further, since the stress distribution at the middle portion of the display module 200 is uniform, and the stress distribution at the edge portion of the display module 200 is not uniform, the edge portion of the display module 200 is more easily damaged compared to the middle portion of the display module 200. When the thickness of the middle part 101 of the sensing layer 100 is smaller than the thickness of the edge part 102 of the sensing layer 100, the sensitivity of the middle part 101 of the sensing layer 100 corresponding to the external pressure is reduced, the sensitivity of the edge part 102 of the sensing layer 100 corresponding to the external pressure is improved, at the moment, the actual situation of the stress distribution inside the display module 200 can be attached, and the sensitivity of the display device 10 to the external pressure detection is improved.

Referring to fig. 17, fig. 17 is a schematic structural diagram of a first electronic device 1 according to an embodiment of the invention. The electronic device 1 comprises a hinge portion 20, a first casing 30, a second casing 40 and the display device 10 provided in any of the above embodiments, wherein the hinge portion 20 is located between the first casing 30 and the second casing 40, the first casing 30 and the second casing 40 are used together for supporting the display device 10, and the display device 10 corresponding to the first casing 30 can move relative to the display device 10 corresponding to the second casing 40 through the hinge portion 20.

The electronic device 1 is a device that is composed of electronic components such as an integrated circuit, a transistor, and an electron tube, and functions by applying electronic technology (including) software, and the common electronic device 1 includes: smart phones, tablet computers, notebook computers, palm computers, Mobile Internet Devices (MID), wearable devices such as smart watches, smart bracelets, pedometers, and the like. The hinge 20 is a hinge.

The first casing 30 and the second casing 40 together constitute an outer case of the electronic apparatus 1 for enclosing and protecting the display device 10. The first housing 30 and the second housing 40 may be metal housings or plastic housings.

The electronic device 1 provided by the embodiment of the invention includes a display device 10, where the display device 10 includes a sensing layer 100 and a display module 200, in some possible implementations, the sensing layer 100 and the display module 200 are stacked, and in other implementations, the sensing layer 100 is embedded in the display module 200. The sensing layer 100 is used for detecting the pressure of the outside on the display module 200, and indicating whether the display module 200 is damaged or not, and indicating the damaged portion of the display module 200 when the display module 200 is damaged. When the display module 200 is applied to the electronic device 1, the sensing layer 100 is arranged to determine whether the damage cause of the electronic device 1 is caused by misoperation or local display abnormality or dead pixel occurs in the quality problem of the electronic device 1 itself, so that the after-sale judgment of the electronic device 1 has a reference value.

Referring to fig. 18, fig. 18 is a schematic structural diagram of a second electronic device 1 according to an embodiment of the invention. The structural schematic diagram of the second electronic device 1 is substantially the same as that of the first electronic device 1, except that the electronic device 1 further includes a flexible portion 50, the flexible portion 50 is located between the first casing 30 and the second casing 40, and the flexible portion 50 is located on a side of the hinge portion 20 away from the display device 10, and when the display device 10 is folded, the flexible portion 50 moves under the traction of the first casing 30 and the second casing 40.

Specifically, the flexible portion 50 is connected between the first housing 30 and the second housing 40, and is used to enclose and protect the hinge portion 20. The flexible portion 50 may be moved under the traction of the first and

second housings

30 and 40. When the display device 10 corresponding to the first casing 30 is folded toward the display device 10 corresponding to the second casing 40, the flexible portion 50 is arched away from the display device 10 to form a receiving space for receiving a portion of the hinge portion 20.

Referring to fig. 19, fig. 19 is a schematic structural diagram of a third electronic device 1 according to an embodiment of the invention. The structural schematic diagram of the third electronic device 1 is substantially the same as the structural schematic diagram of the first electronic device 1, except that the electronic device 1 further includes a middle frame 60 and a battery 70, the middle frame 60 is partially accommodated in the first casing 30 and the second casing 40, the middle frame 60 is disposed adjacent to the display device 10 relative to the battery 70, and the battery 70 is used for supplying power to the display device 10.

The middle frame 60 is partially accommodated in the first casing 30 and partially accommodated in the second casing 40, and the middle frame 60 is used for supporting the display device 10. The battery 70 may be accommodated between the first casing 30 and the middle frame 60, or between the second casing 40 and the middle frame 60. The battery 70 is disposed far from the display device 10 with respect to the middle frame 60, and the middle frame 60 may prevent heat of the battery 70 from being transferred toward the display device 10, thereby protecting the display device 10 and preventing the display device 10 from being damaged due to high temperature from the battery 70.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

The display device is characterized by comprising an induction layer and a display module, wherein the induction layer is stacked with the display module, or the induction layer is embedded in the display module, the induction layer detects the external pressure of the display module and is used for indicating whether the display module is damaged or not, and the damaged part of the display module is generated.
The display device according to claim 1, wherein the sensing layer is a piezoelectric layer, and when the display module is subjected to an external pressure, the sensing layer generates a piezoelectric current, and the display device further comprises a controller, and the controller determines whether the display module is damaged according to the magnitude of the piezoelectric current generated by the sensing layer.
The display device according to claim 2, wherein when the display module is damaged, the controller further determines a position of the display module, which is subjected to pressure impact, according to a position of the sensing layer, which generates the piezoelectric current.
The display device according to any one of claims 1 to 3, wherein when the sensing layer and the display module are stacked, a double-sided adhesive tape is disposed between the sensing layer and the display module, and the double-sided adhesive tape is used for fixedly connecting the sensing layer and the display module.
The display device according to any one of claims 1 to 3, wherein the display device further comprises a display panel and a flexible cover sheet arranged in a stack, and the sensing layer is located on a side of the display panel away from the flexible cover sheet.
The display device according to any one of claims 1 to 3, wherein the display device further comprises a display panel and a flexible cover plate which are stacked, and the sensing layer is embedded in the display panel.
The display device according to any one of claims 1 to 3, wherein the display device further comprises a display panel and a flexible cover sheet arranged in a stack, the sensing layer being located between the display panel and the flexible cover sheet.
The display device according to any one of claims 1 to 3, wherein the display device further comprises a display panel and a flexible cover plate arranged in a stack, and the sensing layer is positioned on a side of the flexible cover plate away from the display panel.
The display device according to any one of claims 5 to 8, wherein a first optical adhesive is disposed between the display panel and the flexible cover plate, the first optical adhesive is used for fixedly connecting the display panel and the flexible cover plate, the display panel includes a touch layer, a second optical adhesive, a polarizer, a light emitting layer, a third optical adhesive, and a substrate, which are sequentially stacked, and the touch layer is disposed adjacent to the flexible cover plate relative to the second optical adhesive.
The display device as claimed in claim 1, wherein the sensing layer is a pressure sensitive layer, and when the display module is subjected to an external pressure and the pressure value is greater than a predetermined threshold value, the sensing layer exhibits a predetermined color, and the predetermined color is used to indicate that the display module is damaged.
The display device as claimed in claim 10, wherein the sensing layer exhibits a predetermined color for indicating a degree of damage of the display module.
The display device as claimed in claim 10, wherein the area size of the predetermined color presented by the sensing layer is used for indicating the damaged area size of the display module.
The display device according to any one of claims 10 to 12, wherein the pressure-sensitive layer includes a first thin film layer, a spacer layer, and a second thin film layer, which are sequentially stacked, the spacer layer being configured to form a spacer for the first thin film layer and the second thin film layer, the first thin film layer being composed of first particles, the second thin film layer being composed of second particles, and the spacer layer being broken when a pressure value is greater than a predetermined threshold value, the first particles and the second particles reacting to exhibit the predetermined color.
The display device according to claim 13, wherein the display device further comprises a display panel and a flexible cover plate which are stacked, a first adhesive is disposed between the display panel and the flexible cover plate, the first adhesive is used for fixedly connecting the display panel and the flexible cover plate, the display panel comprises a touch layer, a second adhesive, a polarizer, a light emitting layer, a third adhesive and a substrate which are stacked in sequence, the touch layer is disposed adjacent to the flexible cover plate relative to the second adhesive, the sensing layer is disposed on a side of the display panel away from the flexible cover plate, the first thin film layer is disposed adjacent to the substrate relative to the second thin film layer, and the first thin film layer and the substrate are fixedly connected through a double-sided adhesive.
The display device according to any one of claims 10 to 12, wherein the display device further comprises a display panel and a flexible cover plate, which are stacked, a first adhesive is disposed between the display panel and the flexible cover plate, the first adhesive is used to fixedly connect the display panel and the flexible cover plate, the display panel comprises a touch layer, a second adhesive, a polarizer, a light emitting layer, a third adhesive, and a substrate, which are stacked in sequence, the touch layer is disposed adjacent to the flexible cover plate relative to the second adhesive, and the sensing layer is disposed between the substrate and the light emitting layer.
The display device of any one of claims 1-15, wherein a middle portion of the sensing layer corresponds to a first pressure threshold and an edge portion of the sensing layer corresponds to a second pressure threshold, the first pressure threshold being greater than the second pressure threshold.
The display device of claim 16, wherein a thickness of a middle portion of the sensing layer and an edge portion of the sensing layer are maintained to be uniform, and a density of the middle portion of the sensing layer is less than a density of the edge portion of the sensing layer.
The display device of claim 16, wherein a density of a middle portion of the sensing layer and an edge portion of the sensing layer is maintained to be uniform, and a thickness of the middle portion of the sensing layer is smaller than a thickness of the edge portion of the sensing layer.
An electronic device, comprising a hinge portion, a first housing, a second housing, and a display device as claimed in any one of claims 1-18, wherein the hinge portion is located between the first housing and the second housing, the first housing and the second housing are used together to support the display device, and the display device corresponding to the first housing is movable relative to the display device corresponding to the second housing via the hinge portion.
The electronic device of claim 19, further comprising a flexible portion between the first housing and the second housing and on a side of the hinge portion away from the display device, the flexible portion moving under traction of the first housing and the second housing when the display device is folded.
The electronic device of claim 19, further comprising a bezel and a battery, the bezel being partially housed within the first housing and the second housing, the bezel being disposed adjacent to the display device relative to the battery, the battery being configured to power the display device.