CN115268140B - Display device and electronic apparatus - Google Patents
Display device and electronic apparatus Download PDFInfo
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- CN115268140B CN115268140B CN202210925640.8A CN202210925640A CN115268140B CN 115268140 B CN115268140 B CN 115268140B CN 202210925640 A CN202210925640 A CN 202210925640A CN 115268140 B CN115268140 B CN 115268140B
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- display device
- brightness compensation
- emitting element
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night
Abstract
The invention discloses a display device and an electronic device, wherein the display device comprises: the backlight module comprises a first opening; the display panel is arranged on the light emitting side of the backlight module; the optical element is arranged on one side of the backlight module, which is away from the display panel, and corresponds to the first opening; the brightness compensation component is connected with the backlight module and comprises a first light-emitting element, and the brightness compensation component is in an expanding state and a contracting state; in the unfolded state, the brightness compensation component is positioned between the first opening and the optical element, the first light-emitting element emits light towards the display panel, and in the contracted state, the brightness compensation component is at least partially contracted in the first opening so as to expose the optical element, and the first light-emitting element emits light towards the backlight module. Through the mutual conversion of the expansion state and the contraction state of the brightness compensation component, the normal display of the display panel corresponding to the first opening position can be realized while the normal operation of the optical element can be ensured, and the full-screen display can be realized.
Description
Technical Field
The invention belongs to the technical field of electronic products, and particularly relates to a display device and electronic equipment.
Background
The LCD (Liquid Crystal Display, LCD liquid crystal display device) has the advantages of low driving voltage, low power consumption, high reliability, large information display amount, no flicker, low cost, etc., and is an ideal display device, which is widely used in daily life and work of people nowadays.
In the prior art, the front camera can be arranged below the blind hole by the liquid crystal display panel, so that the screen occupation ratio is improved. In order to realize the under-screen camera shooting function and ensure imaging quality, the backlight source, the light guide plate inside the backlight source and the optical film material are required to be hollowed out at the position of the blind hole, so that the display panel cannot be displayed normally at the position corresponding to the blind hole, and the use experience of a user is affected.
Therefore, a new display device and electronic apparatus are needed.
Disclosure of Invention
The display device provided by the embodiment of the invention can realize normal display of the display panel corresponding to the first opening position, namely, realize full screen display while ensuring that the optical element can normally work through the mutual conversion of the expansion state and the contraction state of the brightness compensation component.
In a first aspect, an embodiment of the present invention provides a display apparatus, including: the backlight module comprises a first opening; the display panel is arranged on the light emitting side of the backlight module; the optical element is arranged on one side of the backlight module, which is away from the display panel, and corresponds to the first opening; the brightness compensation component is connected with the backlight module and comprises a first light-emitting element, and the brightness compensation component is in an unfolding state and a shrinking state; in the unfolded state, the brightness compensation component is located between the first opening and the optical element, the first light-emitting element emits light towards the display panel, in the contracted state, the brightness compensation component is at least partially contracted in the first opening so as to expose the optical element, and the first light-emitting element emits light towards the backlight module.
In a second aspect, an embodiment of the present invention provides an electronic device, including: the display device described in any one of the above embodiments.
Compared with the related art, the display device provided by the embodiment of the invention comprises a backlight module, a display panel, an optical element and a brightness compensation component, wherein the optical element can be a camera or an infrared identification element and the like, the brightness compensation component has an unfolding state and a shrinking state, in the unfolding state, the optical element does not work, a first light-emitting element of the brightness compensation component emits light towards the display panel so as to provide light for a region of the display panel corresponding to the first opening, the brightness requirement of the display panel is met, full-screen display is realized, and in the shrinking state, the optical element starts to work, so that the brightness compensation component needs to be at least partially shrunk in the first opening to expose the optical element, and the first light-emitting element of the shrunk brightness compensation component emits light towards the backlight module so as to improve the light-emitting brightness of the backlight module and further improve the display effect of the display panel. The display device provided by the embodiment of the invention can realize normal display of the display panel corresponding to the first opening position, namely, realize full screen display while ensuring that the optical element can normally work through the mutual conversion of the expansion state and the contraction state of the brightness compensation component.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
Fig. 1 is a schematic structural view of a display device according to an embodiment of the present invention;
FIG. 2 is a block diagram of the film layers at A-A of FIG. 1 provided in accordance with one embodiment of the present invention;
FIG. 3 is a diagram of the film layer structure at A-A of FIG. 1 provided in accordance with another embodiment of the present invention;
FIG. 4 is a diagram of the film structure at B in FIG. 3 provided in accordance with one embodiment of the present invention;
FIG. 5 is a top view of a brightness compensation assembly provided in accordance with one embodiment of the invention;
FIG. 6 is a top view of a brightness compensation assembly provided in accordance with another embodiment of the invention;
fig. 7 is a schematic structural view of a first light emitting element according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a telescopic member according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
In order to better understand the present invention, a display device and an electronic apparatus according to embodiments of the present invention are described in detail below with reference to fig. 1 to 8.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a display device according to an embodiment of the invention; FIG. 2 is a block diagram of the film layers at A-A of FIG. 1 provided in accordance with one embodiment of the present invention; FIG. 3 is a block diagram of the film layer at A-A of FIG. 1 provided in accordance with another embodiment of the present invention.
An embodiment of the present invention provides a display device including: the backlight module 1 comprises a first open hole K; a display panel 2 disposed on the light-emitting side of the backlight module 1; the optical element 3 is arranged on one side of the backlight module 1 away from the display panel 2 and corresponds to the first opening K; a brightness compensation assembly 4 connected to the backlight module 1, the brightness compensation assembly 4 including a first light emitting element 41 and a support plate 42, the brightness compensation assembly 4 having an expanded state and a contracted state; as shown in fig. 2, the brightness compensation component 4 is located between the first opening K and the optical element 3 in the unfolded state, and the first light emitting element 41 emits light toward the display panel 2, as shown in fig. 3, the brightness compensation component 4 is at least partially shrunk in the first opening K in the shrunk state to expose the optical element 3, and the first light emitting element 41 emits light toward the backlight module 1.
The display device provided by the embodiment of the invention comprises a backlight module 1, a display panel 2, an optical element 3 and a brightness compensation component 4, wherein the optical element 3 can be a camera or an infrared identification element, and the like, the brightness compensation component 4 has an unfolding state and a shrinking state, in the unfolding state, the optical element 3 does not work, a first light-emitting element 41 of the brightness compensation component 4 emits light towards the display panel 2 so as to provide light for a region of the display panel 2 corresponding to a first opening K, thereby meeting the brightness requirement of the display panel 2, realizing full-screen display, and in the shrinking state, the optical element 3 starts to work, so that the brightness compensation component 4 needs to be at least partially shrunk in the first opening K to expose the optical element 3, and the first light-emitting element 41 of the shrunk brightness compensation component 4 emits light towards the backlight module 1 so as to improve the light-emitting brightness of the backlight module 1, thereby improving the display effect of the display panel 2. The display device provided by the embodiment of the invention can realize normal display of the display panel 2 corresponding to the position of the first opening K, namely, realize full screen display while ensuring that the optical element 3 can normally work through the mutual conversion of the expansion state and the contraction state of the brightness compensation component 4.
Optionally, the optical element 3 in this embodiment may be a camera, when the camera is not required to be used for photographing or shooting, the brightness compensation component 4 is in an expanded state, as shown in fig. 2, the brightness compensation component 4 is located between the first opening K and the optical element 3, when the camera is required to be used for photographing or shooting, the brightness compensation component 4 is converted from the expanded state to a contracted state, and the brightness compensation component 4 is at least partially contracted in the first opening K, so that the camera can be exposed to receive external light, thereby realizing the requirement of photographing or shooting, as shown in fig. 3.
The backlight module 1 is provided with the first opening K for accommodating the optical element 3 and the brightness compensation component 4, and is convenient for external light to enter the optical element 3 through the display panel 2 and the first opening K when photographing or shooting is required, so as to meet the light requirement of the optical element 3.
The backlight module 1 in the present embodiment is configured to provide light to the display panel 2 so that the display panel 2 can realize light-emitting display, and will be described below by taking the display panel 2 as an LCD (Liquid Crystal Display ) panel as an example.
Optionally, the display panel 2 includes an array substrate 21 and a color film substrate 22 that are stacked, a liquid crystal layer is further disposed between the array substrate 21 and the color film substrate 22, the array substrate 21 includes components such as a thin film transistor, a pixel electrode, and a common electrode, and the color film substrate 22 includes a film layer such as a black matrix and a color resistor.
The light-emitting side of the display panel 2 may be further provided with a polarizer 7, an optical adhesive layer 8, a cover plate 9, and other film layers in sequence.
Referring to fig. 4 and 5, fig. 4 is a diagram illustrating a structure of a film layer at B in fig. 3 according to an embodiment of the present invention; fig. 5 is a top view of a brightness compensation assembly 4 provided in accordance with one embodiment of the invention. In some alternative embodiments, the brightness compensation assembly 4 includes at least two support plates 42, each support plate 42 is connected to a portion of the backlight module 1 located on a peripheral side of the first opening K, and the first light emitting element 41 is disposed on a side of the support plate 42 facing away from the optical element 3.
It should be noted that, each support plate 42 also has an expanded state and a contracted state, the support plates 42 can move relative to the backlight module 1, specifically, the support plates 42 are arranged flatly in the expanded state, so that the side, away from the optical element 3, of the support plate 42 faces the display panel 2, and light is further provided to the display panel 2, and in the contracted state, the support plates 42 contract inward toward the first opening K, specifically, a portion of the support plates 42 (for example, a portion of each support plate 42 located in the first opening K) bends 90 ° toward the first opening K, so that the first light emitting element 41 can face the backlight module 1. The support plate 42 may be made of a material having a certain bending property so that the support plate 42 can be converted between an expanded state and a contracted state, for example, polyimide, polystyrene, polyethylene terephthalate, parylene, polyethersulfone, or polyethylene naphthalate, or other resin materials may be used as the support plate 42, and is not particularly limited.
Optionally, the first light emitting element 41 and the supporting plate 42 may be adhered by an adhesive, for example, an adhesive layer with a certain viscosity such as OCA (Optically Clear Adhesive, optical adhesive), acrylic adhesive material or silicone adhesive, so as to ensure the stability of fixing the first light emitting element 41.
Of course, the conversion between the extended state and the contracted state of the support plates 42 may be achieved by other forms, for example, each support plate 42 may be rotatably connected to the adjacent backlight module 1, and in the contracted state, each support plate 42 may rotate toward the first opening K to adjust the light emitting direction of the first light emitting element 41.
Since the brightness compensation member 4 needs to be located between the first opening K and the optical element 3 in the unfolded state, a light source is provided to the display panel 2 corresponding to the area of the first opening K through the first light emitting element 41, and the brightness compensation member 4 needs to be at least partially retracted in the first opening K in the retracted state, in order to achieve the above arrangement, as shown in fig. 5, in some alternative embodiments, the front projection shape of the brightness compensation member 4 on the display panel 2 and the front projection shape of the first opening K on the display panel 2 are matched.
In this embodiment, since the first opening K is generally configured to correspondingly configure the optical element 3, for example, when the front projection of the optical element 3 on the display panel 2 is circular, the front projection of the first opening K and the brightness compensation component 4 on the display panel 2 are also correspondingly circular, specifically, since the brightness compensation component 4 mainly comprises the support plate 42 and the first light emitting element 41, and the first light emitting element 41 is relatively small and is located on the support plate 42, the front projection shape of the brightness compensation component 4 on the display panel 2 is mainly determined by the support plate 42, and when the front projection of the first opening K on the display panel 2 is circular, the front projection of the structure formed by mutually splicing the support plates 42 on the display panel 2 is circular, and the radius of the front projection of the circular front projection of each support plate 42 is larger than the radius of the front projection of the circular front projection of the first opening K, so that the support plate 42 and the backlight module 1 are connected. Of course, the front projection of the first opening K, the brightness compensation component 4 and the optical element 3 on the display panel 2 may also have a square shape, and is not particularly limited.
Referring to fig. 5 and 6, fig. 6 is a top view of a brightness compensation module 4 according to another embodiment of the invention. In some alternative embodiments, the front projection shape of the brightness compensation member 4 on the display panel 2 and the front projection shape of the first opening K on the display panel 2 are both circular, and the brightness compensation member 4 comprises at least four support plates 42 having a fan shape.
It will be appreciated that the greater the number of support plates 42 included in the brightness compensation assembly 4, the smaller the size of the individual support plates 42, and the less bending stress is applied during bending, and the easier it is to bend into the first opening K in the contracted state. Alternatively, each support plate 42 may be symmetrically distributed about the center of the first opening K, and the orthographic projection of the circle formed by each support plate 42 on the display panel 2 and the orthographic projection of the first opening K on the display panel 2 are in a concentric circle structure, so as to facilitate the expansion and contraction of the support plate 42.
Alternatively, the central angles of the support plates 42 in the shape of a sector are equal. For example, the brightness compensation component 4 includes four fan-shaped support plates 42, where each fan-shaped support plate 42 has a central angle of 90 °, and each support plate 42 is provided with a first light emitting element 41, so that, to ensure uniformity of light emitted from the first light emitting element 41 on the support plate 42, the first light emitting elements 41 may be uniformly distributed on the support plate 42, so that light emitted from the first light emitting element 41 is uniformly irradiated to the display panel 2 or the backlight module 1.
Of course, the brightness compensation assembly 4 may further include other numbers of support plates 42, for example, 6 or 8 corresponding to each support plate 42 having a central angle of 60 ° when 6 support plates 42 are provided, and each support plate 42 having a central angle of 45 ° when 8 support plates 42 are provided, and it should be noted that too many support plates 42 are not desirable, and too many support plates 42 may result in too small support plates 42, so that the first light emitting element 41 is not conveniently provided on the support plates 42.
Referring to fig. 5 and 6, in order to further improve the uniformity of the light emitted from the first light emitting elements 41, in some alternative embodiments, each of the first light emitting elements 41 is uniformly distributed on the support plate 42 in a ring shape with respect to the center of the brightness compensation member 4.
In this embodiment, depending on the light irradiation range of the first light emitting element 41, one or more circles of first light emitting elements 41 may be specifically provided, one circle of first light emitting elements 41 is provided in fig. 5, and two circles of first light emitting elements 41 are provided in fig. 6, so long as the first light emitting elements 41 can meet the light source requirement of the display panel 2 corresponding to the first opening K region, and the first light emitting elements 41 may specifically be Micro LEDs (Micro Light Emitting Diode, micro LEDs) or Mini-LEDs (small LEDs). The Micro LED and the Mini-LED have the advantages of small size, high luminous efficiency, low energy consumption and the like, the size of the Micro LED is smaller than 50 mu m, and the size of the Mini-LED is smaller than 100 mu m.
In view of the fact that the first light emitting element 41 needs to be disposed on the support plate 42, the disposition space is limited, and thus the first light emitting element 41 in this embodiment may be specifically implemented as Micro LEDs of a small size for ease of disposition.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a first light emitting element 41 according to an embodiment of the invention; the first light emitting element 41 may adopt a blue light chip 411, a fluorescent layer 412 is disposed on a light emitting side of the blue light chip 411, and red and green fluorescent powder of the fluorescent layer 412 is excited by light emitted from the blue light chip 411 to emit white light, and a certain proportion of diffusion powder can be mixed in the fluorescent powder to eliminate lamp eyes and optimize the display effect of the display panel 2 in the area corresponding to the first opening K.
Referring to fig. 5 and 6, in some alternative embodiments, each support plate 42 includes a central area A2 near the center of the brightness compensation module 4 and an edge area A1 far from the center of the brightness compensation module 4, where the first light emitting element 41 is disposed at the edge area A1, and where the first light shielding layer Z1 is disposed at least on the side of the support plate 42 facing the display panel 2 in the unfolded state at the central area A2.
It should be noted that, when each supporting plate 42 is spliced into a circle, the central area A2 is a circular part area close to the center of the circle, and in the unfolded state, the optical element 3 is mainly disposed opposite to the central area A2 of the supporting plate 42, and by disposing the first light shielding layer Z1 in the central area A2 of the supporting plate 42, on one hand, external light can be prevented from entering the optical element 3, and on the other hand, the first light shielding layer Z1 can also play a role of shielding the optical element 3, so as to avoid the problem that the optical element 3 is visible in the unfolded state.
The first light shielding layer Z1 may be made of an opaque material such as an ink material or a black matrix material, and may be formed by a process such as inkjet printing, vapor deposition, or screen printing, and is not particularly limited.
Referring to fig. 3 and 4, in some alternative embodiments, the display device further includes a second light shielding layer Z2 partially disposed between the display panel 2 and the backlight module 1, the second light shielding layer Z2 extends a predetermined distance toward the first opening K, and in the contracted state, the first light shielding layer Z1 on the support plate 42 is at least partially abutted against the second light shielding layer Z2.
It should be noted that, the second light shielding layer Z2 extends to the first opening K by a predetermined distance, and is used for shielding the light emitted from the display panel 2 and/or the backlight module 1, so as to avoid the influence of the light on the working effect of the optical element 3, for example, the effect of the camera, but the light shielding range of the second light shielding layer Z2 is limited, and the support plate 42 in the embodiment of the invention is contracted inwards towards the first opening K in the contracted state, so as to drive the first light shielding layer Z1 on the support plate 42 to at least partially abut against the second light shielding layer Z2, so that the first light shielding layer Z1 and the second light shielding layer Z2 cooperate with each other to shield the light emitted from the display panel 2 and/or the backlight module 1, thereby preventing the light emitted from the part from entering the camera, and ensuring the normal shooting effect of the camera.
The second light shielding layer Z2 may be specifically black PET (Polyethylene Terephthalate ) to ensure a light shielding effect, and compared with the prior art in which two dispensing is used as a fixed light shielding layer, the first light shielding layer Z1 in the embodiment of the present invention is only abutted against the second light shielding layer Z2 when the optical element 3 is in operation, and is in an unfolded state along with the support plate 42 when the optical element 3 is not in operation, so that normal display of the display panel 2 in the area corresponding to the first opening K is not affected. According to the embodiment of the invention, only the second shading layer Z2 is needed to be used as one spot gluing, the first shading layer Z1 can be abutted against the second shading layer Z2 when the optical element 3 works, so that two spot gluing in the prior art is replaced, and the second shading layer Z2 are used for shading the light emitted by the display panel 2 and/or the backlight module 1, so that the light emitted by the second shading layer Z2 is prevented from entering the camera, and the normal shooting effect of the camera is ensured.
To ensure that the first light shielding layer Z1 can at least partially abut against the second light shielding layer Z2, in some alternative embodiments, the depth of the first opening K in the thickness direction of the display device is smaller than the radius of the brightness compensation member 4 in a direction perpendicular to the thickness direction of the display device.
It will be appreciated that, since the brightness compensation assembly 4 needs to shrink inwardly towards the first opening K in the contracted state, when the brightness compensation assembly 4 includes a plurality of fan-shaped support plates 42, the radius of the brightness compensation assembly 4 is the radius of the fan-shaped support plates 42, the first light shielding layer Z1 is disposed in the central area A2 of the support plates 42, in order to ensure that the first light shielding layer Z1 can abut against the second light shielding layer Z2, and the abutting part of the first light shielding layer Z1 can realize shielding of a sufficiently large area, the radius of the brightness compensation assembly 4 needs to be increased, i.e. the radius of the support plates 42, so that more first light shielding layers Z1 can extend into the first opening K and abut against the second light shielding layer Z2. The depth of the first opening K in the thickness direction of the display device and the specific radius of the brightness compensation member 4 in the direction perpendicular to the thickness direction of the display device are required to be selected according to the required contact area of the first light shielding layer Z1 and the second light shielding layer Z2, and are not particularly limited.
Referring to fig. 3 and 4, in some alternative embodiments, the backlight module 1 includes a frame 11 and a light guide plate 12 disposed in the frame 11, the frame 11 has a side facing the first opening K, and an opening T is formed on the side, and in a contracted state, the first light emitting element 41 of the brightness compensation component 4 at least partially extends into the opening T to emit light to the light guide plate 12.
The light guide plate 12 can convert the linear light source of the first light emitting element 41 into a surface light source by using the principle of total reflection of light, and then, the light is emitted from the front surface of the light guide plate 12 to the display panel 2 by providing a light guide point or the like to destroy the reflection condition. Alternatively, the light guide plate 12 may be made of a polycarbonate plate or an acryl material with a high refractive index and no light absorption, and is not particularly limited.
In order to enable the light emitted from the first light emitting element 41 to irradiate the light guide plate 12, the frame 11 of the backlight module 1 is configured to fixedly support the light guide plate 12, and an opening T is provided on a side surface of the frame 11, and in a contracted state, at least a portion of the first light emitting element 41 of the brightness compensation assembly 4 extends into the opening T, so as to ensure stable and opposite arrangement of the first light emitting element 41 and the light guide plate 12, and improve the light utilization rate of the first light emitting element 41 irradiating the light guide plate 12.
Optionally, the backlight module 1 further includes a diffusion layer 14 and a light enhancement layer 15 laminated on the light emitting side of the light guide plate 12, where the light enhancement layer 15 may also be called BEF (BrightnessEnhancement Film, light enhancement film) is an optical film formed by precisely molding a uniform prism pattern on the surface of PET (Polyethylene Terephthalate ) with very good transparency using acrylic resin. The front brightness can be improved by about 100% by assembling the backlight in front of the backlight and collecting the light emitted by the light source in the direction of the display device user. Light that is not utilized outside the viewing angle is recycled according to the light re-reflection effect and collected at an optimum angle.
In one embodiment, the diffusion layer 14 may also be referred to as a diffusion plate (Diffuser), and its main function is to provide a uniform surface light source for the display panel 2. The diffusion layer 14 is made of a material having high light transmittance such as PET (polyethylene terephthalate)/PC (Polycarbonate)/PMMA (polymethyl methacrylate). The diffusion layer 14 may be a diffusion film substrate, in which a single chemical particle is added, and as a scattering particle, the micro particles of the diffusion layer 14 are dispersed between the resin layers, so that the light passes through the diffusion layer 14 continuously in two mediums with different refractive indexes, and at the same time, many phenomena of refraction, reflection and scattering occur to the light, so that an optical diffusion effect is caused.
Referring to fig. 3 and fig. 4, in some alternative embodiments, the backlight module 1 further includes a second light emitting element 13 disposed on a side of the light guide plate 12 facing away from the first opening K, and the light emitted from the second light emitting element 13 faces the opposite side of the light guide plate 12.
It can be understood that, since the light emitted from the second light emitting element 13 is directed to the side surface of the opposite light guide plate 12, that is, the second light emitting element 13 adopts a side-in light emitting element, since the first light emitting element 41 emits light to the light guide plate 12 only in the contracted state, the light intensity is supplemented, and the main light emitted from the backlight module 1 is realized by the second light emitting element 13, so that the light intensity and the irradiation range of the second light emitting element 13 are generally larger than those of the first light emitting element 41.
Alternatively, the maximum size of the first light emitting element 41 is smaller than the maximum size of the second light emitting element 13. Specifically, the first light emitting element 41 may employ a Micro LED, and the second light emitting element 13 may employ a Mini LED. Of course, light emitting diodes of other suitable dimensions may be used without particular limitation.
In order to effectively fix the support plate 42 and the frame 11, in some alternative embodiments, the display device further includes a fixing adhesive layer 5, and the support plate 42 and the frame 11 are connected through the fixing adhesive layer 5.
The fixing adhesive layer 5 may be specifically made of a material having a certain viscosity, such as a double-sided adhesive tape, OCA (Optically Clear Adhesive), an optical adhesive, an acryl adhesive material, or a silicone adhesive, so long as the fixing adhesive layer can be effectively adhered between the support plate 42 and the frame 11.
Referring to fig. 2 and 3, in some alternative embodiments, the optical element 3 is telescopically disposed relative to the backlight module 1, and the optical element 3 and the support plate 42 are connected by a telescopic member 6.
It should be noted that, the optical element 3 is connected to the supporting plate 42 through the telescopic member 6, so that the telescopic member 3 stretches to drive the supporting plate 42 to stretch, so as to realize linkage between the optical element 3 and the supporting plate 42, specifically, when the optical element 3 does not need to work, for example, does not need to be photographed by a camera, the optical element 3 contracts downward relative to the backlight module 1, and meanwhile, the supporting plate 42 is also driven to retract from the first opening K through the telescopic member 6, that is, the telescopic member 6 drives the supporting plate 42 to be converted into an unfolded state; when the optical element 3 works, for example, a camera is required to shoot, the optical element 3 moves towards the direction of the first opening K, and the telescopic piece 6 drives the support plate 42 to shrink inwards towards the first opening K, so that the support plate 42 avoids the optical element 3, and exposes the optical element 3, thereby facilitating the work of the optical element 3.
In the embodiment, the telescopic piece 6 is arranged to realize the linkage between the optical element 3 and the supporting plate 42, and other power is not required to be additionally arranged to drive the supporting plate 42 to move along with the state of the optical element 3, so that the structure is simple and the operation is easy.
Optionally, referring to fig. 8, fig. 8 is a schematic structural view of the telescopic member 6 according to an embodiment of the present invention. The telescopic member 6 is a telescopic rod 61 including at least two sections, and when the optical element 3 moves between the sections of telescopic rods 61, the sections can be relatively telescopic to drive the state of the adjusting support plate 42, and the specific number and length of the telescopic rods 61 need to be selected according to the size of the support plate 42 and parameters such as the telescopic length of the optical element 3, and are not particularly limited.
Of course, other structures, such as springs, Z-shaped spring plates, and other components with certain expansion and contraction performance, can be adopted for expansion and contraction.
The embodiment of the invention also provides electronic equipment, which comprises: the display device of any one of the above embodiments.
Therefore, the electronic device provided in the embodiment of the present invention has the technical effects of the technical solution of the display device in any of the foregoing embodiments, and the explanation of the same or corresponding structure and terms as those of the foregoing embodiments is not repeated herein. The electronic device provided by the embodiment of the invention can be a mobile phone or any electronic product with a display function, including but not limited to the following categories: television, notebook computer, desktop display, tablet computer, digital camera, smart bracelet, smart glasses, vehicle-mounted display, medical equipment, industrial control equipment, touch interactive terminal, etc., which are not particularly limited in this embodiment of the invention.
In the foregoing, only the specific embodiments of the present invention are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the locating processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and they should be included in the scope of the present invention.
It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.
Claims (15)
1. A display device, comprising:
the backlight module comprises a first opening;
the display panel is arranged on the light emitting side of the backlight module;
the optical element is arranged on one side of the backlight module, which is away from the display panel, and corresponds to the first opening;
the brightness compensation component is connected with the backlight module and comprises a first light-emitting element, and the brightness compensation component is in an unfolding state and a shrinking state; the brightness compensation assembly comprises at least two support plates, each support plate is respectively connected with a part of the backlight module located on the periphery of the first opening, and the first light-emitting element is arranged on one side of the support plate, which is away from the optical element; each supporting plate comprises a central area close to the center of the brightness compensation component and an edge area far away from the center of the brightness compensation component, the first light-emitting element is arranged in the edge area, and a first shading layer is arranged at least on one side of the supporting plate facing the display panel in the unfolding state in the central area;
in the unfolded state, the brightness compensation component is located between the first opening and the optical element, the first light-emitting element emits light towards the display panel, in the contracted state, the brightness compensation component is at least partially contracted in the first opening so as to expose the optical element, and the first light-emitting element emits light towards the backlight module.
2. The display device of claim 1, wherein the brightness compensation assembly has a front projection shape on the display panel that matches a front projection shape of the first aperture on the display panel.
3. The display device of claim 2, wherein the front projection shape of the brightness compensation member on the display panel and the front projection shape of the first opening on the display panel are both circular, and the brightness compensation member comprises at least four support plates having a fan shape.
4. A display device according to claim 3, wherein the central angles of the support plates in the shape of sectors are equal.
5. The display device according to claim 1, wherein each of the first light emitting elements is uniformly distributed in a ring shape on the support plate with respect to a center of the brightness compensation member.
6. The display device according to claim 1, further comprising a second light shielding layer partially disposed between the display panel and the backlight module, wherein the second light shielding layer extends toward the first opening by a predetermined distance, and in the contracted state, the first light shielding layer on the support plate is at least partially abutted against the second light shielding layer.
7. The display device according to claim 1, wherein a depth of the first opening in a thickness direction of the display device is smaller than a radius of the brightness compensation member in a direction perpendicular to the thickness direction of the display device.
8. The display device according to claim 1, wherein the backlight module comprises a frame and a light guide plate disposed in the frame, the frame has a side surface facing the first opening, an opening is disposed on the side surface, and in the contracted state, the first light emitting element of the brightness compensation assembly extends into the opening at least partially to emit light to the light guide plate.
9. The display device according to claim 8, wherein the backlight module further comprises a second light emitting element disposed on a side of the light guide plate facing away from the first opening, and light emitted from the second light emitting element faces an opposite side of the light guide plate.
10. The display device according to claim 9, wherein a maximum size of the first light emitting element is smaller than a maximum size of the second light emitting element.
11. The display device according to claim 10, wherein the first light-emitting element and the second light-emitting element are each light-emitting diodes.
12. The display device of claim 8, further comprising a layer of fixing glue, wherein the support plate and the frame are connected by the layer of fixing glue.
13. The display device according to claim 1, wherein the optical element is telescopically arranged relative to the backlight module, and the optical element and the support plate are connected by a telescopic member.
14. The display device of claim 13, wherein the telescoping member is a telescoping rod comprising at least two sections; or, the telescopic piece is a spring.
15. An electronic device, comprising: the display device of any one of claims 1 to 14.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210925640.8A CN115268140B (en) | 2022-08-03 | 2022-08-03 | Display device and electronic apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210925640.8A CN115268140B (en) | 2022-08-03 | 2022-08-03 | Display device and electronic apparatus |
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| CN115268140B true CN115268140B (en) | 2023-09-15 |
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|---|---|---|---|---|
| WO2008108287A1 (en) * | 2007-03-02 | 2008-09-12 | Sanryu Co., Ltd. | Multiple-image displaying method and device |
| JP2009117232A (en) * | 2007-11-08 | 2009-05-28 | Sharp Corp | Backlight unit, method of manufacturing backlight unit, and liquid crystal display device |
| CN208953838U (en) * | 2018-10-29 | 2019-06-07 | 惠州市宝明精工有限公司 | Finger touch identifies back light module unit structure under a kind of improved screen |
| CN210518431U (en) * | 2019-10-31 | 2020-05-12 | 深圳市德仓科技有限公司 | Terminal display module |
| CN112951086A (en) * | 2021-02-01 | 2021-06-11 | 厦门天马微电子有限公司 | Display module, application method thereof and display device |
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2022
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008108287A1 (en) * | 2007-03-02 | 2008-09-12 | Sanryu Co., Ltd. | Multiple-image displaying method and device |
| JP2009117232A (en) * | 2007-11-08 | 2009-05-28 | Sharp Corp | Backlight unit, method of manufacturing backlight unit, and liquid crystal display device |
| CN208953838U (en) * | 2018-10-29 | 2019-06-07 | 惠州市宝明精工有限公司 | Finger touch identifies back light module unit structure under a kind of improved screen |
| CN210518431U (en) * | 2019-10-31 | 2020-05-12 | 深圳市德仓科技有限公司 | Terminal display module |
| CN112951086A (en) * | 2021-02-01 | 2021-06-11 | 厦门天马微电子有限公司 | Display module, application method thereof and display device |
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| CN115268140A (en) | 2022-11-01 |
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