CN111752039A - Liquid crystal display module and display device - Google Patents
Liquid crystal display module and display device Download PDFInfo
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- CN111752039A CN111752039A CN202010629601.4A CN202010629601A CN111752039A CN 111752039 A CN111752039 A CN 111752039A CN 202010629601 A CN202010629601 A CN 202010629601A CN 111752039 A CN111752039 A CN 111752039A
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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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a liquid crystal display module and a display device, wherein the liquid crystal display module is provided with a first display area and a second display area and comprises a liquid crystal panel, a backlight module and an optical assembly, the backlight module is arranged on one side of the bottom surface of the liquid crystal panel, a through hole is formed in the position, corresponding to the first display area, of the backlight module, the optical assembly is arranged on one side, facing the backlight module, of the liquid crystal panel and corresponds to the through hole, the optical assembly comprises a photosensitive assembly and a first light source, light of the first light source is emitted to the light emitting side of the backlight module through a light emitting surface in a first driving state, and incident light is emitted to the photosensitive assembly through the liquid crystal panel and the through hole in a. According to the liquid crystal display module, the first light source is used for providing backlight for the position, corresponding to the first display area, of the liquid crystal panel, so that the position, corresponding to the first display area, of the liquid crystal panel can be lightened, display of the liquid crystal panel at the first display area is achieved, and further the display effect of a full-face screen can be achieved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a liquid crystal display module and a display device.
Background
In the information age, the display screen is more and more important as one of the most important carriers of information in the work and life of people. The 100% full screen display is one of display dreams pursued by people, but due to the existence of the front camera, the full screen with absolute significance is difficult to realize, and the under-screen camera technology appearing in recent years brings possibility for realizing the full screen.
The camera under the screen is just referred to as setting up leading camera under the screen, and the camera can be hidden to this kind of mode, nevertheless can lead to the region that corresponds to set up the camera on the Display screen to the LCD (Liquid Crystal Display, LCD) simultaneously and can't be lighted and show, consequently also can't realize real comprehensive screen yet, seriously influences user experience.
Disclosure of Invention
The invention aims to provide a liquid crystal display module and a display device, wherein a liquid crystal panel of the liquid crystal display module can be lightened at a position corresponding to a photosensitive assembly, and the display effect of a full-face screen can be realized.
In one aspect, the present invention provides a liquid crystal display module, which has a first display area and a second display area, and includes: the liquid crystal panel is provided with a display surface and a bottom surface which are opposite; the backlight module is arranged on one side of the bottom surface of the liquid crystal panel, and a through hole is formed in the position, corresponding to the first display area, of the backlight module; the optical assembly is arranged on one side, facing the backlight module, of the liquid crystal panel and corresponds to the through hole, the optical assembly is provided with a light emitting surface, the light emitting surface faces the liquid crystal panel, and the optical assembly comprises a photosensitive assembly and a first light source; the light of the first light source is emitted to the light emitting side of the backlight module through the light emitting surface in the first driving state, and the light incident through the display surface is incident to the photosensitive assembly through the liquid crystal panel and the through hole in the second driving state.
According to a first aspect of the embodiments of the present invention, the first light source includes a plurality of point light sources, and the plurality of point light sources are distributed in an array along at least one circular line with the photosensitive assembly as a center.
According to one aspect of the invention, the point sources are equally spaced on each annular line.
According to an aspect of the present invention, the light spot emitted from the first light source and reaching the bottom surface of the liquid crystal panel through the through hole in the first driving state completely covers the first display region.
According to one aspect of the present invention, the optical assembly further includes a base having a tapered circular truncated cone, the photosensitive assembly is mounted on the tapered circular truncated cone, the point light source is disposed on a surface of the base adjacent to the tapered circular truncated cone, a vertical distance h from the point light source to the liquid crystal panel satisfies relation 1,
wherein α is the taper angle of the conical round table, d1Is the diameter of the upper bottom surface of the conical round table, d2The diameter of the lower bottom surface of the conical round platform, D is the diameter of the through hole, h1The vertical distance from the backlight module to the liquid crystal panel is greater than 45 degrees and less than α degrees and less than 85 degrees, and d is greater than 0 degree1＜d2＜D，h1＜h≤20mm，3mm≤D≤5mm，3mm≤h1Less than or equal to 10mm, h and d2The units of (a) are identical.
According to one aspect of the invention, the diameter d of the point light source satisfies relation 2,
D＝d2+2d formula 2
Wherein d, d2And D are in agreement.
According to one aspect of the invention, the optical assembly further comprises an optical film layer, the optical film layer is arranged corresponding to the through hole, and the optical film layer comprises a light guide plate, a prism film arranged on one side of the light guide plate, which is far away from the first light source, and a diffusion film arranged on one side of the prism film, which is far away from the first light source.
According to one aspect of the invention, the optical film is embedded in the through hole and the edge of the optical film is connected to the backlight module.
According to one aspect of the invention, the photosensitive assembly is located in the through hole, and the optical film layer is provided with an opening for light to pass through at a position corresponding to the photosensitive assembly.
In another aspect, the invention further provides a display device, which includes the liquid crystal display module.
The invention provides a liquid crystal display module and a display device, wherein the liquid crystal display module is provided with a first display area and a second display area and comprises a liquid crystal panel, a backlight module and an optical assembly, the backlight module is provided with a through hole corresponding to the first display area, the optical assembly is arranged at one side of the liquid crystal panel facing the backlight module and corresponds to the through hole, the optical assembly comprises a photosensitive assembly and a first light source, light of the first light source is emitted to the light emitting side of the backlight module through a light emitting surface in a first driving state, the position of the liquid crystal panel corresponding to the first display area can be lightened, the display of the liquid crystal panel at the first display area is realized, the display effect of a full-screen can be further realized, and light incident through the display surface of the liquid crystal panel in a second driving state can be incident to the photosensitive assembly through the liquid crystal panel and the through hole, so that the photosensitive assembly can.
Drawings
In the following, brief descriptions will be given to the drawings required to be used in the embodiments of the present invention, and those skilled in the art can obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a liquid crystal display module according to an embodiment of the invention;
FIG. 2 is a cross-sectional view taken along line A-A of the LCD module shown in FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 2;
FIG. 4 is a top view of an optical assembly of a liquid crystal display module according to an embodiment of the present invention;
FIG. 5 is a schematic view of a liquid crystal display module according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of an optical film layer of a liquid crystal display module according to another embodiment of the invention.
Description of reference numerals:
e-a first display area; f-a second display area;
10-a cover plate;
20-a liquid crystal panel;
30-a backlight module; 31-a through hole;
40-an optical component; 41-a photosensitive component; 42-a first light source; 43-a substrate; 44-a conical frustum; 45-an optical film layer; 451-a light guide plate; 452-a prismatic film; 453-diffusion membrane.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, for the purposes of illustrating the principles of the invention. Additionally, the components in the drawings are not necessarily to scale. For example, the dimensions of some of the elements or regions in the figures may be exaggerated relative to other elements or regions to help improve understanding of embodiments of the present invention.
When a layer or a region is referred to as being "on" or "over" another layer or another region in describing the structure of a component, it may be directly on the other layer or the other region or may be included between the layer or the region and the other layer or the other region. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
Furthermore, the terms "comprises," "comprising," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or component comprising a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure or component. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element. It will be apparent 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 present invention by illustrating examples of the present invention.
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
For better understanding of the present invention, the liquid crystal display module and the display device according to the embodiments of the present invention are described in detail below with reference to fig. 1 to 5.
Fig. 1 is a schematic structural diagram of a liquid crystal display module according to an embodiment of the invention, and fig. 2 is a sectional view of the liquid crystal display module shown in fig. 1 along a direction a-a; FIG. 3 is an enlarged view of portion B of FIG. 2; FIG. 4 is a top view of an optical assembly of a liquid crystal display module according to an embodiment of the present invention.
Referring to fig. 1 to 4, a liquid crystal display module according to an embodiment of the invention includes a first display area E and a second display area F, and the liquid crystal display module includes a liquid crystal panel 20, a backlight module 30, and an optical assembly 40.
The liquid crystal panel 20 is used for displaying pictures, and the liquid crystal panel 20 has a display surface and a bottom surface which are opposite; the backlight module 30 is disposed on one side of the bottom surface of the liquid crystal panel 20 and is used for providing backlight light for the liquid crystal panel 20, and a through hole 31 is disposed at a position of the backlight module 30 corresponding to the first display area E; the optical assembly 40 is disposed corresponding to the through hole 31 on a side of the liquid crystal panel 20 facing the backlight module 30, the optical assembly 40 has a light exit surface facing the liquid crystal panel 20, the optical assembly 40 includes a light sensing assembly 41 and a first light source 42, light of the first light source 42 exits to a light exit side of the backlight module 30 through the light exit surface in a first driving state, and light entering through the display surface enters the light sensing assembly 41 through the liquid crystal panel 20 and the through hole 31 in a second driving state.
In the liquid crystal display module provided by the embodiment of the invention, the first light source 42 is arranged around the photosensitive assembly 41, when the liquid crystal panel 20 needs to display an image, the first light source 42 can be used for providing backlight for the position, corresponding to the first display area E, of the liquid crystal panel 20, so that the position, corresponding to the first display area E, of the liquid crystal panel 20 can be lightened, the display of the liquid crystal panel 20 at the position, corresponding to the first display area E, of the first display area E is realized, and further, the basis is made for realizing full-screen display; in addition, the external light incident through the display surface in the second driving state can be incident to the photosensitive assembly 41 through the liquid crystal panel 20 and the through hole 31, so that the incident light is provided for the photosensitive assembly 41, and the photosensitive assembly 41 can be ensured to normally collect light.
It should be noted that, in the first driving state, when the light of the first light source 42 exits to the light exit side of the backlight module 30 through the light exit surface, the first display area may be completely covered to achieve the effect of full-screen display, and the first display area may also be partially covered, which is also within the protection scope of the present application.
It is understood that the first display area E is a multiplexing area of the lighting function and the display function, the second display area F is a main display area, and the second display area F may have only the display function.
In some alternative embodiments, the first display area E may be located at a vertex angle of the liquid crystal display module, the through hole 31 is correspondingly disposed at the vertex angle of the backlight module 30, and the optical element 40 is correspondingly mounted at the vertex angle of the liquid crystal display module. Of course, the position of the first display area E is not limited thereto, and may be located at the top, middle or bottom edge of the lcd module.
In some alternative embodiments, the liquid crystal display module may have one or more first display regions E. Accordingly, the lcd module may include one or more optical assemblies 40, and the optical assemblies 40 respectively correspond to the first display regions E to respectively realize the optical performance of the optical assemblies 40. In addition, one optical assembly 40 may be correspondingly disposed in the first display area E, or a plurality of optical assemblies 40 may be disposed, that is, the plurality of optical assemblies 40 may share one first display area E.
It is understood that the cross-sectional shape of the first display area E may be a square, a circle, an ellipse, or the like. Optionally, the first display area E is circular.
In some optional embodiments, the liquid crystal display module provided in the embodiments of the present invention further includes a cover plate 10, where the cover plate 10 is disposed on a display surface side of the liquid crystal panel 20, and the liquid crystal panel 20 can be protected by the cover plate 10.
Optionally, the cover plate 10 is a transparent cover plate 10 to transmit light. The cover plate 10 may be a glass cover plate 10, a resin cover plate 10, or the like.
In some optional embodiments, the liquid crystal panel 20 may specifically include an array substrate, a liquid crystal layer, and a color filter substrate, the color filter substrate is disposed opposite to the array substrate, and the liquid crystal layer is sandwiched between the array substrate and the color filter substrate. The array substrate controls the arrangement mode of liquid crystal molecules in the liquid crystal layer, the passing state of light is changed, and different image display requirements are met.
It can be understood that, when the photosensitive element 41 needs to collect light, the liquid crystal molecules in the liquid crystal layer corresponding to the first display area E can be controlled to deflect to form a liquid crystal lens, so that the external light can pass through the liquid crystal panel 20 corresponding to the first display area E and reach the photosensitive element 41.
It can be understood that the backlight module 30 is disposed on the bottom side of the liquid crystal panel 20, the backlight module 30 can provide backlight for the liquid crystal panel 20, and when the backlight module 30 emits light on the bottom side of the liquid crystal panel 20, the light is transmitted through the liquid crystal panel 20, so that the influence displayed by the liquid crystal panel 20 can be seen by human eyes.
In some alternative embodiments, the backlight module 30 may be a Light Emitting Diode (OLED) backlight or a Quantum Dot (QD) backlight. In some optional embodiments, in the first driving state, the first light source 42 and the backlight module 30 may be turned on simultaneously, the first light source 42 provides backlight to the liquid crystal panel 20 corresponding to the first display area E, and the backlight module 30 provides backlight to the liquid crystal panel 20 corresponding to the second display area F, so as to achieve a full-screen display effect.
It can be understood that, when the photosensitive assembly 41 needs to collect light, the liquid crystal display module is in the second driving state, and in the second driving state, the first light source 42 and the backlight module 30 can be turned off, so as not to affect the light collecting operation of the photosensitive assembly 41. In some alternative embodiments, the shape of the through hole 31 disposed at the position of the backlight module 30 corresponding to the first display area E may be adapted to the first display area E to facilitate the installation of the optical assembly 40. It will be appreciated that the cross-section of the through-hole 31 may be square, circular, oval or the like. Optionally, the through-hole 31 is a circular hole.
The optical assembly 40 is disposed corresponding to the through hole 31, and the optical assembly 40 includes a photosensitive assembly 41 and a first light source 42. In some alternative embodiments, the photosensitive component 41 may be a camera component or an infrared sensor.
In some optional embodiments, the first light source 42 may include a plurality of point light sources, and the plurality of point light sources are distributed in an array along at least one circular line with the photosensitive assembly 41 as a center, so as to ensure the photosensitive performance of the photosensitive assembly 41 and maximize the light emitting area of the first light source 42. Preferably, the photosensitive member 41 may be disposed corresponding to the center of the through hole 31 such that the entire optical member 40 faces the through hole 31.
It can be understood that the plurality of point light sources may be distributed in an array along one circular line with the photosensitive assembly 41 as a center, or may be distributed in an array along a plurality of circular lines with gradually increasing radii, that is, the photosensitive assembly 41 may surround only one circle of point light sources, or surround a plurality of circles of point light sources.
Optionally, the number of the point light sources on each circular line may be the same or different, and this application does not specifically limit this.
Alternatively, the point light sources are equally spaced on each circular line to make the backlight provided by the first light source 42 to the liquid crystal panel 20 as uniform as possible.
Optionally, a white light LED can be selected as a point light source, and the LED light source is small in size, long in service life and recyclable.
In some alternative embodiments, the light intensity of the first light source 42 can be adjusted by controlling the power of the point light source, so as to ensure that the brightness of the liquid crystal panel 20 corresponding to the first display area E is consistent with the brightness of the liquid crystal panel 20 corresponding to the second display area F.
It should be noted that, the power of the point light sources is not limited in the present application, and may be specifically selected according to the light intensity of the backlight module 30, the number of the point light sources, and the like.
In some optional embodiments, in the first driving state, the light spot emitted by the first light source 42 and reaching the bottom surface of the liquid crystal panel 20 through the through hole 31 may completely cover the first display area E, so as to ensure that the position of the liquid crystal panel 20 corresponding to the first display area E can be completely lighted, and further the liquid crystal panel 20 is lighted on the full screen, thereby realizing full-screen display.
Alternatively, in order to make the backlight luminance provided by the first light source 42 everywhere on the liquid crystal panel 20 uniform, the light spot emitted from the first light source 42 and reaching the bottom surface of the liquid crystal panel 20 through the through hole 31 can completely cover the first display region E without overlapping.
In some optional embodiments, to facilitate the installation of the photosensitive assembly 41 and the first light source 42, the optical assembly 40 may further include a base 43 having a tapered circular truncated cone 44, the photosensitive assembly 41 is installed on the tapered circular truncated cone 44, and the point light source is disposed on a surface of the base 43 adjacent to the tapered circular truncated cone 44.
It will be appreciated that the taper angle of the tapered circular truncated cone 44 is α, and the diameter of the upper bottom surface of the tapered circular truncated cone 44 is d1The diameter of the lower bottom surface of the conical frustum 44 is d2If the vertical distance h from the point light source to the liquid crystal panel 20 is h, the vertical distance h from the point light source to the liquid crystal panel 20 satisfies the following relation 1 in order to allow the light spot emitted from the first light source 42 and reaching the bottom surface of the liquid crystal panel 20 through the through hole 31 to completely cover the first display region E without overlapping,
let D be the diameter of the through hole 31, and h be the vertical distance from the backlight module 30 to the liquid crystal panel 201Then 0 < d1＜d2＜D，h＞h1H and d2Optionally, according to the design requirement of the liquid crystal display module, the diameter D of the through hole 31 may be set to be 3mm to 5mm, the size range of the taper angle α of the tapered circular table 44 may be 45 ° to 85 °, and the vertical distance h from the backlight module 30 to the liquid crystal panel 20 may be h1May be set to 3mm to 10 mm.
It should be noted that the vertical distance from the point light source to the liquid crystal panel 20 refers to the vertical distance from the point light source to the liquid crystal layer of the liquid crystal panel 20, and the vertical distance from the backlight module 30 to the liquid crystal panel 20 refers to the vertical distance from the backlight module 30 to the liquid crystal layer of the liquid crystal panel 20.
Alternatively, the plurality of point light sources are distributed in an array along a circular line centered on the photosensitive assembly 41. On the basis, the diameter d of the point light source can satisfy the relation 2,
D＝d2+2d formula 2
Wherein d, d2Is in accordance with the unit of DSo that the projection of the outer edge of the first light source 42 in the thickness direction of the liquid crystal panel 20 and the projection of the backlight module 30 in the thickness direction of the liquid crystal panel 20 have no gap and no overlap.
Alternatively, the substrate 43 may be a driving circuit board, and the first light source 42 and the backlight module 30 are electrically connected to the driving circuit board. In the first driving state, the driving circuit board controls the first light source 42 and the backlight module 30 to be turned on, the photosensitive assembly 41 does not work, the first light source 42 and the backlight module 30 provide backlight for the whole liquid crystal panel 20, the liquid crystal panel 20 displays images in full screen, in the second driving state, the driving circuit board controls the first light source 42 and the backlight module 30 to be turned off, liquid crystal molecules in a liquid crystal layer corresponding to the first display area E deflect to form a liquid crystal lens, so that external light can enter the photosensitive assembly 41 through the liquid crystal panel 20 and the through hole 31, and the photosensitive assembly 41 performs lighting work.
It can be understood that, when the photosensitive element 41 does not operate, the first light source 42 may be turned on or off, and the backlight module 30 may be turned on or off, specifically, the first light source 42 may be controlled to be turned on or off according to the actual display condition of the liquid crystal panel 20.
Referring to fig. 5 and fig. 6 together, fig. 5 is a schematic structural diagram of a liquid crystal display module according to another embodiment of the present invention; fig. 6 is a schematic structural diagram of an optical film layer of a liquid crystal display module according to another embodiment of the invention.
In some optional embodiments, the optical assembly 40 may further include an optical film 45, and the optical film 45 is disposed between the first light source 42 and the liquid crystal panel 20 corresponding to the through hole 31 to improve the emergent brightness of the first light source 42, and enable the first light source 42 to provide backlight with uniform brightness for the liquid crystal panel 20, so as to avoid bright and dark light marks when displaying a picture.
Optionally, the optical film layer 45 may specifically include a light guide plate 451, a prism film 452 and a diffusion film 453, the prism film 452 is disposed on a side of the light guide plate 451 facing away from the first light source 42, and the diffusion film 453 is disposed on a side of the prism film 452 facing away from the first light source 42; the optical film 45 can modify the light emitted from each point of the first light source 42 into a surface light with uniform brightness, so that when the light emitted from the first light source 42 exits to the light exit side of the backlight module 30 through the light exit surface, the light emitted from the first light source 42 can be integrated with the light of the backlight module 30.
It can be understood that, after the optical film 45 is disposed between the first light source 42 and the liquid crystal panel 20, a side surface of the optical film 45 facing away from the first light source 42 is a light emitting surface of the optical assembly 40.
Alternatively, the optical film 45 may be disposed within the through hole 31, and the edge of the optical film 45 may be connected to the backlight film. Of course, it is also within the scope of the present invention to cover the optical film 45 directly on the light-emitting side of the first light source 42.
In some optional embodiments, to ensure that the photosensitive assembly 41 can work normally in a daylighting manner, the optical film 45 may be provided with an opening for light to pass through, corresponding to the photosensitive assembly 41.
Alternatively, the upper bottom surface of the conical circular truncated cone 44 can extend into the through hole 31, so that the photosensitive assembly 41 is located in the through hole 31; on this basis, the opening on the optical film 45 may be disposed corresponding to the upper bottom surface of the tapered circular truncated cone 44, so that the optical film 45 is annular, and the inner edge of the optical film 45 may be connected to the photosensitive element 41.
In addition, the embodiment of the invention also provides a display device which comprises the liquid crystal display module.
The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Also, different features that are present in different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art upon studying the drawings, the specification, and the claims.
Claims (10)
1. The utility model provides a liquid crystal display module assembly, has first display area and second display area, its characterized in that includes:
the liquid crystal panel is provided with a display surface and a bottom surface which are opposite;
the backlight module is arranged on one side of the bottom surface of the liquid crystal panel, and a through hole is formed in the position, corresponding to the first display area, of the backlight module;
the optical assembly is arranged on one side, facing the backlight module, of the liquid crystal panel and corresponds to the through hole, the optical assembly is provided with a light emitting surface, the light emitting surface faces the liquid crystal panel, and the optical assembly comprises a photosensitive assembly and a first light source;
the light of the first light source is emitted to the light emitting side of the backlight module through the light emitting surface in the first driving state, and the light incident through the display surface in the second driving state is incident to the photosensitive assembly through the liquid crystal panel and the through hole.
2. The liquid crystal display module of claim 1, wherein the first light source comprises a plurality of point light sources, and the plurality of point light sources are distributed in an array along at least one circular line with the photosensitive assembly as a center.
3. The liquid crystal display module of claim 2, wherein the point light sources are equally spaced on each of the annular lines.
4. The liquid crystal display module of claim 2, wherein the first display region is completely covered by a light spot emitted from the first light source and reaching the bottom surface of the liquid crystal panel through the through hole in the first driving state.
5. The LCD module of claim 4, wherein the optical assembly further comprises a base having a truncated cone, the photosensitive assembly is mounted on the truncated cone, the point light source is disposed on a surface of the base adjacent to the truncated cone, a vertical distance h from the point light source to the LCD panel satisfies relation 1,
wherein α is the taper angle of the conical frustum, d1Is the diameter of the upper bottom surface of the conical circular truncated cone, d2The diameter of the lower bottom surface of the conical round platform, D is the diameter of the through hole, h1The vertical distance from the backlight module to the liquid crystal panel is 45 degrees < α < 85 degrees, and 0 < d1＜d2＜D，h1＜h≤20mm，3mm≤D≤5mm，3mm≤h1Less than or equal to 10mm, h and d2The units of (a) are identical.
6. The liquid crystal display module of claim 5, wherein the diameter d of the point light source satisfies the relation 2,
D＝d2+2d formula 2
Wherein d, d2And D are in agreement.
7. The LCD module as claimed in any one of claims 1 to 6, wherein the optical assembly further comprises an optical film layer disposed corresponding to the through hole, the optical film layer comprising a light guide plate, a prism film disposed on a side of the light guide plate facing away from the first light source, and a diffusion film disposed on a side of the prism film facing away from the first light source.
8. The liquid crystal display module according to claim 7, wherein the optical film is embedded in the through hole and the edge of the optical film is connected to the backlight module.
9. The LCD module as recited in claim 8, wherein the photosensitive element is disposed in the through hole, and the optical film layer has an opening for light to pass through corresponding to the photosensitive element.
10. A display device comprising the liquid crystal display module according to any one of claims 1 to 9.
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| CN202010629601.4A CN111752039A (en) | 2020-07-03 | 2020-07-03 | Liquid crystal display module and display device |
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| CN202010629601.4A CN111752039A (en) | 2020-07-03 | 2020-07-03 | Liquid crystal display module and display device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130377A (en) * | 2020-10-10 | 2020-12-25 | 厦门天马微电子有限公司 | Display device and control method thereof |
| CN113176682A (en) * | 2021-04-26 | 2021-07-27 | 厦门天马微电子有限公司 | Display device |
| CN114530093A (en) * | 2021-12-24 | 2022-05-24 | 厦门天马微电子有限公司 | Display module, driving method of display device and display device |
| CN114594630A (en) * | 2022-03-03 | 2022-06-07 | 厦门天马微电子有限公司 | Backlight module and display device |
| WO2023019621A1 (en) * | 2021-08-19 | 2023-02-23 | 惠州华星光电显示有限公司 | Display device |
| WO2023201819A1 (en) * | 2022-04-20 | 2023-10-26 | 武汉华星光电技术有限公司 | Display apparatus and display method therefor |
-
2020
- 2020-07-03 CN CN202010629601.4A patent/CN111752039A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130377A (en) * | 2020-10-10 | 2020-12-25 | 厦门天马微电子有限公司 | Display device and control method thereof |
| CN112130377B (en) * | 2020-10-10 | 2022-09-13 | 厦门天马微电子有限公司 | Display device and control method thereof |
| CN113176682A (en) * | 2021-04-26 | 2021-07-27 | 厦门天马微电子有限公司 | Display device |
| CN113176682B (en) * | 2021-04-26 | 2022-06-14 | 厦门天马微电子有限公司 | Display device |
| WO2023019621A1 (en) * | 2021-08-19 | 2023-02-23 | 惠州华星光电显示有限公司 | Display device |
| US11971622B2 (en) | 2021-08-19 | 2024-04-30 | Huizhou China Star Optoelectronics Display Co., Ltd. | Display device |
| CN114530093A (en) * | 2021-12-24 | 2022-05-24 | 厦门天马微电子有限公司 | Display module, driving method of display device and display device |
| CN114530093B (en) * | 2021-12-24 | 2024-01-19 | 厦门天马微电子有限公司 | Display module, driving method of display device and display device |
| CN114594630A (en) * | 2022-03-03 | 2022-06-07 | 厦门天马微电子有限公司 | Backlight module and display device |
| WO2023201819A1 (en) * | 2022-04-20 | 2023-10-26 | 武汉华星光电技术有限公司 | Display apparatus and display method therefor |
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