CN113284419B - Display panel, display device and vehicle-mounted display device - Google Patents
Display panel, display device and vehicle-mounted display device Download PDFInfo
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- CN113284419B CN113284419B CN202110567903.8A CN202110567903A CN113284419B CN 113284419 B CN113284419 B CN 113284419B CN 202110567903 A CN202110567903 A CN 202110567903A CN 113284419 B CN113284419 B CN 113284419B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/22—Antistatic materials or arrangements
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Abstract
The invention discloses a display panel, a display device and a vehicle-mounted display device, wherein the display panel comprises: the integrated circuit comprises a backboard, an integrated circuit, a pixel layer and an electromagnetic shielding layer, wherein the pixel layer and the electromagnetic shielding layer are sequentially arranged along the direction far away from the backboard; the backboard is grounded, the integrated circuit is connected with the pixel layer, the first side portion of the electromagnetic shielding layer is electrically isolated from the backboard, and the first side portion is the side, closest to the integrated circuit, of the electromagnetic shielding layer, so that damage to the integrated circuit caused by static electricity entering through the backboard is prevented. The invention solves the technical problem of insufficient ESD protection capability of the display panel and the display device in a power-off state. The factory yield and the reliability of the display panel and the display equipment are effectively improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, display equipment and vehicle-mounted display equipment.
Background
Failures caused by Electro-Static discharge (ESD) are failure types requiring heavy protection for various electronic products. Strict ESD reliability tests are required before the display panel and the display device are shipped.
When the display panel is in an operating state, various ESD protection devices or circuits are usually provided to protect the display panel. However, when the display panel is powered off and is in an inoperative state, the protection device or the circuit cannot play a role in protection, which easily causes weak links in the display panel to be damaged by ESD.
It is seen that the ESD protection capability of the display panel and the display device in the power-down state needs to be improved.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a display panel, a display apparatus, and an in-vehicle display apparatus that overcome or at least partially solve the above problems.
In a first aspect, a display panel is provided, including:
the integrated circuit comprises a backboard, an integrated circuit, a pixel layer and an electromagnetic shielding layer, wherein the pixel layer and the electromagnetic shielding layer are sequentially arranged along the direction far away from the backboard;
the backboard is grounded, the integrated circuit is connected with the pixel layer, the first side portion of the electromagnetic shielding layer is electrically isolated from the backboard, and the first side portion is the side, closest to the integrated circuit, of the electromagnetic shielding layer, so that damage to the integrated circuit caused by static electricity entering through the backboard is prevented.
Optionally, the display panel further includes: and the fixing structure is arranged on the electromagnetic shielding layer and the side surface of the back plate so as to coat and fix the side edge of the display panel.
Optionally, the fixing structure is made of a conductive material and is in contact conduction with the back plate, wherein the fixing structure and the electromagnetic shielding layer are arranged at an interval.
Optionally, the fixing structure is made of a conductive material; the fixing structure is arranged at an interval with the first side part and is connected with the second side part of the electromagnetic shielding layer and the backboard, wherein the second side part is opposite to the first side part.
Optionally, the fixing structure includes: an insulating part made of insulating material and arranged on the first side part; the conductive part is made of conductive materials and is arranged on a second side part of the electromagnetic shielding layer, and the second side part is opposite to the first side part; wherein the conductive portion connects the second side portion and the back plate.
Optionally, the insulating part is further disposed on a third side and a fourth side of the electromagnetic shielding layer, wherein the third side and the fourth side are respectively located at two ends of the first side and are connected to the first side.
Optionally, the fixing structure is an adhesive tape.
Optionally, the display panel further includes: the inside of support is fixed with the backplate the pixel layer with the electromagnetic shield layer, wherein, fixed knot constructs the cladding in the outside of support.
Optionally, the display panel is a liquid crystal panel, the pixel layer includes an array substrate, a liquid crystal layer and a color filter substrate that are sequentially arranged along a direction away from the backplane, the liquid crystal panel further includes: the backlight module, the lower polarizer and the upper polarizer are sequentially arranged along the direction far away from the back plate; the pixel layer and the electromagnetic shielding layer are both arranged between the upper polarizer and the lower polarizer.
In a second aspect, a display device is provided, which includes the display panel of any one of the first aspect.
In a third aspect, an on-vehicle display device is provided, which includes the display panel of any one of the first aspect.
The technical scheme provided by the embodiment of the invention at least has the following technical effects or advantages:
according to the display panel, the display device and the vehicle-mounted display device provided by the embodiment of the invention, the electromagnetic shielding layer is electrically isolated from the backboard closest to the first side part of the integrated circuit, and the first side part and the backboard can be completely disconnected or a resistor is arranged between the first side part and the backboard to serve as a buffer through the electrical isolation. Therefore, when the grounded back plate is impacted by ESD, ESD energy is totally or mainly acted on the back plate and is led out through grounding, the ESD energy cannot be directly acted on the integrated circuit, the integrated circuit which is easy to be damaged by static electricity is effectively protected, and the reliability of the product is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a first cross-sectional view of a display panel according to an embodiment of the present invention;
FIG. 2 is a top view of the display panel shown in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a second display panel according to an embodiment of the present invention;
FIG. 4 is a top view of the display panel shown in FIG. 3 according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a display panel in accordance with an embodiment of the present invention;
FIG. 6 is a top view of the display panel shown in FIG. 5 according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of a display panel according to an embodiment of the present invention;
fig. 8 is a structural diagram of a display device in an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1 to 7, the display panel 100 of the present invention includes:
the display comprises a backboard 1, an integrated circuit 2, a pixel layer 3 and an electromagnetic shielding layer 4 which are sequentially arranged along the direction far away from the backboard 1;
the back plate 1 is grounded, the integrated circuit 2 is connected with the pixel layer 3, the first side portion 41 of the electromagnetic shielding layer 4 is electrically isolated from the back plate 1, and the first side portion 41 is the side of the electromagnetic shielding layer 4 closest to the integrated circuit 2, so that damage of static electricity entering through the back plate 1 to the integrated circuit 2 is blocked.
The Display panel 100 may be a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or a Light-Emitting Diode (LED), but is not limited thereto.
This display panel 100 can be the display panel of mobile unit, and because mobile unit has higher requirement to security and reliability, the inspection of leaving the factory is stricter, so mobile unit adopts the display panel 100 that this application provided, can increase the qualification rate and the safety in utilization of leaving the factory. Of course, the display panel may also be used in products such as notebook computers, tablet computers, mobile phones, etc., without limitation.
As shown in fig. 1, the electromagnetic shielding layer 4 is disposed on the pixel layer 3 to reduce interference of external electromagnetic energy to the pixel layer 3, thereby performing a shielding function. The electromagnetic shielding layer 4 has conductivity and transparency, and the resistance value is generally 100-200 ohms. Specifically, the electromagnetic shielding layer 4 is often made of an ITO thin film, i.e., a transparent conductive film of an indium tin oxide semiconductor, to satisfy the requirements of light transmission and electric conduction.
The specific structure of the pixel layer 3 is different according to the type of the display panel. If the display panel 100 is a liquid crystal display panel, the pixel layer 3 includes an array substrate, a liquid crystal layer, and a color filter substrate sequentially arranged in a direction away from the backplane 1. If the display panel 100 is an OLED display panel, the pixel layer 3 includes a transistor layer, a first electrode layer, a light emitting layer, and a second electrode layer sequentially arranged along a direction away from the backplane 1.
An Integrated Circuit (IC) 2 is often disposed on one side of the electromagnetic shielding layer 4. Specifically, as shown in fig. 1, the integrated circuit 2 is disposed near the first side portion 41 and at the same layer as the electromagnetic shielding layer 4 and/or the pixel layer 3. The integrated circuit 2 may also be bent under the first side portion 41 by a flexible board, wherein the integrated circuit 2 is connected to the pixel layer 3, and the integrated circuit 2 may be a display driver IC or a power supply IC, which is not limited herein.
Since the integrated circuit 2 in the display panel 100 is a device with weak ESD tolerance capability, and the ESD rating that the integrated circuit 2 can bear per se is about ± 3kV, and the ESD test standard is ± 8kV or ± 15kV, the integrated circuit 2 is often damaged during the test, so that the product cannot pass the certification. Therefore, in the present invention, the electromagnetic shielding layer 4 is electrically isolated from the backplane 1 at the first side portion 41 closest to the integrated circuit 2, that is, the first side portion 41 is completely insulated and disconnected from the backplane 1, or a resistor is arranged between the first side portion 41 and the backplane 1 for buffering conduction. Therefore, ESD energy can be totally or mainly acted on the back plate 1 and is led out through grounding, the ESD energy can not be directly acted on the integrated circuit 2, the integrated circuit 2 which is easy to be damaged by static electricity is effectively protected, and the reliability of a product is improved.
There are various ways of electrically isolating the first side portion 41 from the backplate 1, for example, fixing the electromagnetic shielding layer 4 and the backplate 1 by using an insulator structure, or connecting the first side portion 41 and the backplate 1 through a resistor with a resistance of 100 ohms or more, so as to implement no limitation.
In some alternative embodiments, as shown in fig. 1 to 6, fixing structures 5 (the thick solid line in the cross-sectional view indicates the fixing structure 5, and the shaded portion in the top view indicates the fixing structure 5) may be disposed on the side surfaces of the display panel 100, and the fixing structures 5 are disposed on the side surfaces of the electromagnetic shielding layer 4 and the back plate 1 to wrap and fix the side edges of the display panel 100, so as to perform the supporting and fixing functions. The fixing structure 5 may be wholly or partially made of a conductive material to perform a fixing function and enhance shielding against electromagnetic interference. Wherein the fixing structure 5 may be an adhesive tape for easy assembly and reduced occupied volume.
In combination with the fixing structure 5, there are various ways to realize the electrical isolation between the first side portion 41 and the back plate 1, and three ways are listed as follows:
first, as shown in fig. 1 and fig. 2 (fig. 1 is a cross-sectional view of a display panel 100 in an embodiment of the invention, and fig. 2 is a top view of the display panel 100 in the embodiment of the invention shown in fig. 1), a fixing structure 5 is made of a conductive material and is in contact with a backplane 1, wherein the fixing structure 5 and an electromagnetic shielding layer 4 are disposed at an interval.
Specifically, the fixing structure 5 may be a conductive adhesive tape or a conductive frame, and the fixing structure 5 is connected to the backplane 1 on the bottom surface of the display panel 100, is electrically connected to ground, and covers the side surface of the display panel 100, so as to fix components in the display panel 100 and achieve an electromagnetic shielding effect. The fixing structure 5 only covers the edge of the front surface of the display panel 100, does not contact the electromagnetic shielding layer 4, and is spaced apart from the electromagnetic shielding layer 4 to be insulated from the electromagnetic shielding layer 4, so that the back plate 1 and the electromagnetic shielding layer 4 are electrically isolated from each other.
The above-mentioned first electric isolation setting that provides has not only consolidated display panel 100 through fixed knot structure 5, has still strengthened electromagnetic shield effect through fixed knot structure 5's electric conductive property and ground connection setting to realize backplate 1 and electromagnetic shield layer 4's complete open circuit electric isolation, can effectively guarantee that the ESD energy is all acted on backplate 1 and derive through ground connection, protected integrated circuit 2. However, since the backplane 1 and the electromagnetic shielding layer 4 are arranged in an electrically isolated manner, and the electromagnetic shielding layer 4 is completely insulated and broken, electric charges are generated during the shielding process, and the electric charges cannot be released, which may cause a white screen abnormality of the display panel 100.
Secondly, as shown in fig. 3 and fig. 4 (fig. 3 is a second cross-sectional view of the display panel 100 in the embodiment of the invention, and fig. 4 is a top view of the display panel 100 in the embodiment of the invention shown in fig. 3), the fixing structure 5 is made of a conductive material, wherein the fixing structure 5 and the first side portion 41 are arranged at an interval, the fixing structure 5 connects the second side portion 42 of the electromagnetic shielding layer 4 and the back plate 1, wherein the second side portion 42 is opposite to the first side portion 41.
Specifically, the fixing structure 5 may be a conductive tape or a conductive frame, and the fixing structure 5 is connected to the backplane 1 on the bottom surface of the display panel 100, is electrically connected to the ground, and covers the side surface of the display panel 100, so as to fix components in the display panel 100 and achieve an electromagnetic shielding effect. The fixing structure 5 covers only the edge of the front surface of the display panel 100, is connected to and electrically connected to the second side portion 42 of the electromagnetic shielding layer 4, but does not contact the first side portion 41 of the electromagnetic shielding layer 4, i.e., is spaced from the first side portion 41, and further increases the resistance of the electromagnetic shielding layer 4 in the current path between the rear plate 1 and the first side portion 41, thereby realizing the electrical isolation arrangement in which the resistance serves as a buffer.
As shown in fig. 4, the fixing structure 5 may be further disposed to be spaced apart from the third side 43 and the fourth side 44 of the electromagnetic shielding layer 4, wherein the third side 43 and the fourth side 44 are respectively located at two ends of the first side 41 and are connected to the first side 41, so as to increase the resistance between the backplane 1 and the first side 41, and enhance the protection of the integrated circuit 2.
The second electrical isolation arrangement provided above not only reinforces the display panel 100 through the fixing structure 5, but also enhances the electromagnetic shielding effect through the conductive performance and the grounding arrangement of the fixing structure 5. In addition, the current path between the back plate 1 and the first side portion 41 needs to pass through the resistor of the electromagnetic shielding layer 4, so that electrical isolation through the resistor is realized, most of the ESD energy can be effectively ensured to act on the back plate 1 and be led out through grounding, and the integrated circuit 2 is protected. Further, since the backplate 1 and the second side portion 42 are conducted through the fixing structure 5, the charges generated by the electromagnetic shielding layer 4 in the shielding process can be released from the second side portion 42 through the fixing structure 5, thereby avoiding the display panel 100 from having a white screen abnormality. The shielding effect of the electromagnetic shielding layer 4 is also enhanced by the grounding of the electromagnetic shielding layer 4.
Third, as shown in fig. 5 and fig. 6 (fig. 5 is a cross-sectional view of the display panel 100 in the embodiment of the invention, and fig. 6 is a top view of the display panel 100 shown in fig. 5 in the embodiment of the invention), the fixing structure 5 includes an insulating portion 51 and a conductive portion 52. The insulating portion 51 is made of an insulating material and is provided on the first side portion 41 of the electromagnetic shield layer 4. The conductive portion 52 is made of a conductive material and disposed on the second side portion 42 of the electromagnetic shielding layer 4, wherein the second side portion 42 is opposite to the first side portion 41, and the conductive portion 52 connects and electrically connects the second side portion 42 and the back plate 1.
Specifically, the insulating portion 51 may be an insulating tape or an insulating frame, and the conductive portion 52 may be a conductive tape or a conductive frame. The conductive part 52 is connected to the back plate 1 on the bottom surface of the display panel 100, is electrically connected to ground, and covers the side surface of the display panel 100 close to the second side part 42, so as to fix the components in the display panel 100 and achieve the electromagnetic shielding effect. The conductive portion 52 covers an edge position of the second side portion 42 of the electromagnetic shielding layer 4 to be connected to and electrically connected to the second side portion 42. The insulating part 51 covers the back plate 1 at the bottom surface of the display panel 100, covers the side surface of the display panel 100 close to the first side part 41, and covers the edge position of the second side part 42 of the electromagnetic shielding layer 4, so as to achieve a better fixing effect on the components in the display panel 100.
As shown in fig. 6, an insulating part 51 may also be disposed on the third side part 43 and the fourth side part 44 of the electromagnetic shielding layer 4, wherein the third side part 43 and the fourth side part 44 are respectively located at two ends of the first side part 41 and connected to the first side part 41, so as to increase the resistance value between the backplane 1 and the first side part 41 and enhance the protection of the integrated circuit 2.
The third electrical isolation arrangement provided above not only reinforces the display panel 100 by the fixing structure 5, but also enhances the electromagnetic shielding effect by the conductive property and grounding arrangement of the conductive portion 52 in the fixing structure 5. Moreover, due to the electrical isolation of the insulating portion 51, the current path between the backplate 1 and the first side portion 41 needs to pass through the resistor of the electromagnetic shielding layer 4, so that the electrical isolation through the resistor is realized, most of the ESD energy can be effectively ensured to act on the backplate 1 and be led out through grounding, and the integrated circuit 2 is protected. Further, since the back plate 1 and the second side portion 42 are electrically connected through the conductive portion 52, charges generated by the electromagnetic shielding layer 4 during the shielding process can be released from the second side portion 42 through the conductive portion 52, and the display panel 100 is prevented from being abnormal in white screen. The shielding effect of the electromagnetic shielding layer 4 is also enhanced by the grounding of the electromagnetic shielding layer 4.
Of course, the manner of electrically isolating the first side portion 41 from the back plate 1 with the fixing structure 5 is not limited to the above three, and all the fixing structures 5 may be made of an insulating material such as an insulating tape or an insulating frame to provide a fixing function and to electrically isolate the first side portion 41 from the back plate 1.
As shown in fig. 1, the display panel may further include: the support 6 fixes the back plate 1, the pixel layer 3 and the electromagnetic shielding layer 4 on the inner side of the support 6, and the fixing structure 5 is coated on the outer side of the support 6 to further reinforce and stabilize the positions of all the components in the display panel 100. The support 6 is an insulating support to ensure an electrically isolated arrangement between the first side 41 and the back plate 1.
In some alternative embodiments, the display panel 100 may further include, as shown in fig. 7, according to the type and functional requirements of the display panel: the backlight module 7 and the upper polarizer 8 are sequentially arranged along the direction far away from the back plate 1, wherein the pixel layer 3 and the electromagnetic shielding layer 4 are both arranged between the upper polarizer 8 and the backlight module 7. A lower polarizer 9 can be arranged between the optical module 7 and the upper polarizer 8, and the pixel layer 3 and the electromagnetic shielding layer 4 are arranged between the upper polarizer 8 and the lower polarizer 9. Of course, the display panel 100 may further include other components, such as a gasket, a protective layer, etc., which are not limited and are not listed here.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, as shown in fig. 8, which is a structural diagram of the display device in the embodiment of the present invention, including: the embodiment of the invention provides a display panel 100.
It should be noted that the display device may be a vehicle-mounted display screen, a notebook computer, a television, a tablet computer, a mobile phone, or a medical display device, and the like, which is not limited herein.
Based on the same inventive concept, an embodiment of the present invention further provides a vehicle-mounted display device, including: the embodiment of the invention provides a display panel 100.
It should be noted that the vehicle-mounted display device may be a display device integrally prepared on the vehicle, or may be a device that can be mounted on the vehicle or used independently of the vehicle, and is not limited herein.
The technical scheme provided by the embodiment of the invention at least has the following technical effects or advantages:
according to the display panel, the display device and the vehicle-mounted display device provided by the embodiment of the invention, the electromagnetic shielding layer is electrically isolated from the backboard closest to the first side part of the integrated circuit, and the first side part and the backboard can be completely disconnected or a resistor is arranged between the first side part and the backboard to serve as a buffer through the electrical isolation. Therefore, when the grounded back plate is impacted by ESD, ESD energy is totally or mainly acted on the back plate and is led out through grounding, the ESD energy cannot be directly acted on the integrated circuit, the integrated circuit which is easy to be damaged by static electricity is effectively protected, and the reliability of the product is improved.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed to reflect the intent: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the apparatus of an embodiment may be adaptively changed and disposed in one or more apparatuses other than the embodiment. The modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore, may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (10)
1. A display panel, comprising:
the backlight module comprises a back plate, an integrated circuit, and a backlight module, a pixel layer, an electromagnetic shielding layer and an upper polaroid which are sequentially arranged along the direction far away from the back plate;
the backboard is grounded, and the integrated circuit is connected with the pixel layer, wherein the first side part of the electromagnetic shielding layer is electrically isolated from the backboard, and the first side part is the side of the electromagnetic shielding layer closest to the integrated circuit so as to block the damage of static electricity entering through the backboard to the integrated circuit;
the display panel further includes: the fixing structure is arranged on the electromagnetic shielding layer and the side surface of the back plate so as to coat and fix the side edge of the display panel;
the fixing structure is in contact conduction with the back plate, wherein the fixing structure and the first side portion are arranged at intervals, or the fixing structure comprises an insulating portion made of insulating materials, and the insulating portion is arranged on the first side portion.
2. The display panel of claim 1, wherein when the securing structure is spaced apart from the first side portion:
the fixing structure is made of conductive materials and is in contact conduction with the back plate, wherein the fixing structure and the electromagnetic shielding layer are arranged at intervals.
3. The display panel of claim 1, wherein when the securing structure is spaced apart from the first side portion:
the fixing structure is made of a conductive material;
the fixing structure is arranged at an interval with the first side part and is connected with the second side part of the electromagnetic shielding layer and the backboard, wherein the second side part is opposite to the first side part.
4. The display panel according to claim 1, wherein when the fixing structure includes the insulating portion, the fixing structure further includes:
the conductive part is made of conductive materials and is arranged on a second side part of the electromagnetic shielding layer, and the second side part is opposite to the first side part; wherein the conductive part connects the second side part and the back plate.
5. The display panel of claim 4, wherein:
the insulating part is further arranged on a third side part and a fourth side part of the electromagnetic shielding layer, wherein the third side part and the fourth side part are respectively positioned at two ends of the first side part and are connected with the first side part.
6. The display panel of claim 1, wherein the securing structure is an adhesive tape.
7. The display panel of claim 1, wherein the display panel further comprises:
the support, the inboard of support is fixed with the backplate, pixel layer and electromagnetic shield layer, wherein, fixed knot constructs the cladding in the outside of support.
8. The display panel according to any one of claims 1 to 7, wherein the display panel is a liquid crystal panel, the pixel layer includes an array substrate, a liquid crystal layer, and a color filter substrate that are sequentially arranged in a direction away from the backplane, and the liquid crystal panel further includes:
the backlight module, the lower polarizer and the upper polarizer are sequentially arranged along the direction far away from the back plate;
the pixel layer and the electromagnetic shielding layer are both arranged between the upper polarizer and the lower polarizer.
9. A display device comprising the display panel according to any one of claims 1 to 8.
10. An in-vehicle display apparatus characterized by comprising the display panel according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110567903.8A CN113284419B (en) | 2021-05-24 | 2021-05-24 | Display panel, display device and vehicle-mounted display device |
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| CN202110567903.8A CN113284419B (en) | 2021-05-24 | 2021-05-24 | Display panel, display device and vehicle-mounted display device |
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| CN113284419A CN113284419A (en) | 2021-08-20 |
| CN113284419B true CN113284419B (en) | 2022-11-29 |
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