CN213780604U - Display module assembly and electronic equipment - Google Patents
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- CN213780604U CN213780604U CN202023050478.5U CN202023050478U CN213780604U CN 213780604 U CN213780604 U CN 213780604U CN 202023050478 U CN202023050478 U CN 202023050478U CN 213780604 U CN213780604 U CN 213780604U
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Abstract
The utility model discloses a display module assembly and electronic equipment, include: a first display area and a second display area; in the first display area, the backlight module is provided with a light sensing element accommodating hole; the vertical projection of the light sensing element accommodating hole on the first substrate is positioned in the first display area; the light sensing element is at least partially arranged in the light sensing element accommodating hole, and the light sensing surface of the light sensing element faces the display panel; the light polarization state selection layer is positioned between the backlight module and the liquid crystal layer, and the vertical projection of the light polarization state selection layer on the first substrate is positioned in the first display area; when the first display area is in a shooting mode, at least part of light incident to the liquid crystal layer is transmitted to the light sensing element accommodating hole after passing through the light polarization state selection layer; when the first display area is in a display mode, light rays incident to the liquid crystal layer are selected by the light polarization state selection layer, and at least part of the light rays are reflected to form white state display of the display panel or at least part of the light rays are transmitted to form dark state display of the display panel, so that comprehensive screen display is realized.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a display module assembly and electronic equipment.
Background
With the progress and development of the times, a 'full-screen' with high screen ratio and an ultra-narrow frame limit becomes a hot spot in the field of small-size display screens. The advantage of the 'full screen' is that the display area of the screen is utilized to the maximum, so that better visual experience is brought to the user. The problem of the placement of the front camera, the ambient light sensor, the receiver and other photosensitive devices of the mobile phone is the difficulty of the design of a comprehensive screen.
Because of the advantages of thin body, soft Display screen, no harm to eyes, no radiation, etc., Liquid Crystal Display (LCD) modules are widely used in terminal devices such as mobile phones and tablet computers, and household appliances such as televisions. In the design of the mainstream liquid crystal display equipment at present, one is to arrange the opening on the display panel, so that the contradiction between the front camera and the screen occupation ratio is better solved under the condition that the structure of the original display panel is kept unchanged. However, due to the existence of the opening, the opening area or the slotted area cannot be displayed, and the full screen in the complete sense is not realized. The other is that the front camera is set to be in a pop-up form, namely, the front camera is popped up when being used, and is contained in a cabin in the mobile phone when not being used. However, such a mobile phone has a complex structure, high processing difficulty, high manufacturing cost, and low operation reliability of the front camera, and frequent popping up easily causes problems such as collision and damage of the front camera. In addition, in order to ensure that the camera is smoothly popped out, the mobile phone is inevitably provided with an avoiding gap, the gap is easy to enter water and ash, and the quality of the whole mobile phone is influenced, so that a novel display panel is required to be found to solve the problems.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a display module assembly and electronic equipment to realize the full screen display and show.
In a first aspect, an embodiment of the present invention provides a display module, including: comprises a first display area and a second display area, wherein the second display area at least partially surrounds the first display area; the display module assembly still includes: the display panel comprises a first substrate, a second substrate, a liquid crystal layer and a first polarizing layer; the liquid crystal layer is positioned between the first substrate and the second substrate, the polarizing layer is positioned on one side of the second substrate, which is far away from the liquid crystal layer, and the backlight module is positioned on one side of the first substrate, which is far away from the liquid crystal layer;
in the first display area, the backlight module is provided with a light sensing element accommodating hole; the vertical projection of the light sensing element accommodating hole on the first substrate is positioned in the first display area;
the light sensing element is at least partially arranged in the light sensing element accommodating hole, and the light sensing surface of the light sensing element faces the display panel;
the light polarization state selection layer is positioned between the backlight module and the liquid crystal layer, and the vertical projection of the light polarization state selection layer on the first substrate is positioned in the first display area;
the second polarizing layer is positioned on one side, close to the backlight module, of the first substrate, and the vertical projection of the second polarizing layer on the first substrate is positioned in the second display area;
when the first display area is in a shooting mode, at least part of light rays incident to the liquid crystal layer are transmitted to the light sensing element accommodating hole after being selected by the light polarization state selection layer;
when the first display area is in a display mode, light rays incident to the liquid crystal layer are selected by the light polarization state selection layer and then at least partially reflected to form white state display of the display panel or at least partially transmitted to form dark state display of the display panel.
Optionally, the light polarization state selection layer comprises a metal wire grid.
Optionally, the metal wire grid polarizer further comprises at least one hollow structure;
the first display area comprises a plurality of sub-pixels, and the vertical projection of at least one sub-pixel on the first substrate is positioned in the vertical projection of the hollow structure on the first substrate.
Optionally, the display panel further includes a color filter layer, where the color filter layer is located on one side of the second substrate close to the liquid crystal layer;
the color filter layer comprises a second hollow structure, and the vertical projection of the second hollow structure on the first substrate is located in the first display area.
Optionally, the wire grid direction of the light polarization state selection layer is perpendicular to the polarization direction of the first polarization layer, and the first display area and the second display area each include a plurality of sub-pixels;
the sub-pixels of the first display area are powered up in a shooting mode, and light rays incident to the liquid crystal layer of the first display area are transmitted after passing through the light polarization state selection layer;
the sub-pixels of the first display area are powered off in a display mode, and light rays incident to the liquid crystal layer of the first display area are reflected through the light polarization state selection layer to form white state display; or the like, or, alternatively,
and when the sub-pixels of the first display area are powered up in a display mode, light incident to the liquid crystal layer of the first display area is transmitted through the light polarization state selection layer to form dark state display.
Optionally, the wire grid direction of the light polarization state selection layer is parallel to the polarization direction of the first polarization layer, and the first display area and the second display area each include a plurality of sub-pixels;
the sub-pixels of the first display area are powered off in a shooting mode, and light rays incident to the liquid crystal layer of the first display area are transmitted after passing through the light polarization state selection layer;
when the sub-pixels of the first display area are powered up in a display mode, light rays incident to the liquid crystal layer of the first display area are reflected through the light polarization state selection layer to form white state display; or the like, or, alternatively,
and the sub-pixels of the first display area are powered off in the display mode, and light rays incident to the liquid crystal layer of the first display area are transmitted through the light polarization state selection layer to form dark state display.
Optionally, the light source is further included, and the light source is located on the side wall of the light sensing element accommodating hole.
Optionally, in the first display area, the light sensing element accommodating hole penetrates through the backlight module along a direction perpendicular to the plane of the display panel.
Optionally, the display module further comprises an auxiliary light guide film; the auxiliary light guide film is positioned in the first display area and positioned on one side, facing the display panel, of the light sensing surface of the light sensing element.
In a second aspect, an embodiment of the present invention further provides an electronic device, including the display module according to any one of the first aspects.
The embodiment of the utility model provides a display module assembly, through set up light sense component holding hole on the backlight unit that is located first display area, light sense component holding downthehole photosensitive element that is provided with, and be provided with light polarization selection layer between backlight unit and the liquid crystal layer, when display panel is in the mode of shooing, the light of incidenting to the liquid crystal layer transmits to light sense component holding hole behind light polarization selection layer, the setting is received ambient light at the downthehole photosensitive element of light sense component holding and is realized shooing. When the display panel is in a white display mode, light incident to the liquid crystal layer is reflected to the second substrate after passing through the light polarization state selection layer, and at the moment, the first display area and the second display area both perform picture display, so that full-screen display of the display panel is realized.
Drawings
Fig. 1 is a schematic structural diagram of a display module according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a display module according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a metal wire grid according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of another display module according to a second embodiment of the present invention;
fig. 6 is a schematic view of a partial structure of a display panel according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display module according to a third embodiment of the present invention;
fig. 8 is a schematic structural diagram of another display module according to a third embodiment of the present invention;
fig. 9 is a schematic structural diagram of another display module according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a schematic structural diagram of a display module assembly provided in the first embodiment of the present invention, as shown in fig. 1, the display module assembly includes a first display area AA1 and a second display area AA2, the second display area AA2 at least partially surrounds the first display area AA1, the display module assembly further includes: backlight unit 100 and display panel 200, display panel 200 includes first base plate 10, second base plate 20, liquid crystal layer 30 and first polarisation layer 40, and liquid crystal layer 30 is located between first base plate 10 and the second base plate 20, and first polarisation layer 40 is located the one side that second base plate 20 deviates from liquid crystal layer 30, and backlight unit 100 is located the one side that first base plate 10 deviates from liquid crystal layer 30. In the first display area AA1, the backlight module 100 is provided with a light sensing element accommodating hole 101, a vertical projection of the light sensing element accommodating hole 101 on the first substrate 10 is located in the first display area AA1, the light sensing element 300 is at least partially disposed in the light sensing element accommodating hole 101, a light sensing surface of the light sensing element 300 faces the display panel 200, the light polarization state selection layer 400 is located between the backlight module 100 and the liquid crystal layer 30, and a vertical projection of the light polarization state selection layer 400 on the first substrate 10 is located in the first display area AA 1. The second polarizing layer 41 is located on one side of the first substrate 10 close to the backlight module 100, and a vertical projection of the second polarizing layer 41 on the first substrate 10 is located in the second display area AA 2; when the first display area AA1 is in the shooting mode, the light incident on the liquid crystal layer 30 passes through the light polarization state selection layer 400 and at least partially transmits to the light sensing element accommodating hole 101; when the first display area AA1 is in the display mode, light incident on the liquid crystal layer 30 is at least partially reflected to the second substrate 20 after passing through the light polarization state selection layer 400.
The following embodiments are described by taking a TN mode liquid crystal display panel as an example, in which a pixel electrode of the display panel is located on a side of a first substrate close to a liquid crystal layer, and a common electrode is located on a side of a second substrate close to the liquid crystal layer, and rotation of liquid crystal molecules of the liquid crystal layer is achieved by applying a voltage signal between the pixel electrode and the common electrode.
Illustratively, as shown in fig. 1, the light polarization state selection layer 400 is located between the backlight module 100 and the liquid crystal layer 30, the light polarization state selection layer 400 is a metal wire grid, wherein when the polarization direction of the incident light is parallel to the wire grid direction of the light polarization state selection layer 400, the light is reflected, when the polarization direction of the incident light is perpendicular to the wire grid direction of the light polarization state selection layer 400, the light is transmitted through the light polarization state selection layer 400, the liquid crystal layer is a liquid crystal of 90 ° TN type, and the polarization direction of the first polarization layer 40 is perpendicular to the wire grid direction of the light polarization state selection layer 400. When the display panel is in the display mode, at this time, in the first display area AA1, after the ambient light passes through the first polarizing layer 40, the light parallel to the polarization direction of the first polarizing layer 40 passes through the first polarizing layer 40 to reach the liquid crystal layer 30, when the liquid crystal layer 30 is driven without an external electric field, the liquid crystal layer 30 of 90 ° TN type is in a 90 ° rotation state, the polarization direction of the incident light passing through the liquid crystal layer 30 is changed by 90 °, at this time, the polarization direction of the light incident to the light polarization state selection layer 400 is parallel to the wire grid direction of the light polarization state selection layer 400, and the light is reflected by the light polarization state selection layer 400 to form a white state. When an external electric field drives the liquid crystal layer 30, as shown in fig. 2, liquid crystal molecules of the liquid crystal layer 30 rotate to a vertical state, the polarization direction of light incident to the liquid crystal layer 30 after passing through the liquid crystal layer 30 is not changed, the polarization direction of light incident to the light polarization state selection layer 400 is perpendicular to the direction of the wire grid of the light polarization state selection layer 400, and the light penetrates through the light polarization state selection layer 400 to form a dark state. And when the display panel is in the photographing mode, continuing to refer to fig. 2, at this time, in the first display area AA1, after the ambient light passes through the polarizing layer 40, part of the light parallel to the polarization direction of the first polarizing layer 40 passes through the first polarizing layer 40 and reaches the liquid crystal layer 30, at this time, because the liquid crystal of the liquid crystal layer 30 is in the vertical state, the polarization direction of the polarized light passing through the liquid crystal layer 30 is not changed, and when the light reaches the light polarization state selection layer 400, the light is perpendicular to the wire grid direction of the light polarization state selection layer 400, therefore, the ambient light passes through the light polarization state selection layer 400, at this time, the ambient light passes through the light polarization state selection layer 400 and then transmits to the light sensing element 300, so as to implement the photographing function.
In the second display area AA2 of the display module, the display panel further includes a second polarizing layer 41 located on the first substrate 10 and away from the liquid crystal layer 30, as shown in fig. 1, wherein the first polarizing layer 40 is perpendicular to the polarization direction of the second polarizing layer 41, when no external electric field is applied to the liquid crystal layer 30, after light emitted from the backlight module 100 passes through the second polarizing layer 41, the polarized light rotates 90 ° through 90 ° TN liquid crystal polarization direction, and can pass through the first polarizing layer 40, so that the display panel in the second display area AA2 forms a white state. When an external electric field is applied to the liquid crystal layer 30, after light emitted from the backlight module 100 passes through the second polarizing layer 41, the polarization direction of the polarized light is unchanged after the polarized light passes through the vertically arranged liquid crystal layer 30, and the polarized light cannot pass through the first polarizing layer 40, so that the display panel in the second display area AA2 is in a black state.
It should be noted that fig. 1 and fig. 2 exemplarily show that the light polarization state selection layer 400 is disposed on one side of the first substrate 10 away from the liquid crystal layer 30, and the light polarization state selection layer 400 can also be disposed on one side of the first substrate 10 close to the liquid crystal layer 30, and the embodiment of the present invention does not limit the specific position of the light polarization state selection layer 400, so long as it satisfies that, in the photographing mode, the light incident to the liquid crystal layer 30 is transmitted to the light sensing element accommodating hole 101 through the light polarization state selection layer 400.
Fig. 1 and fig. 2 exemplarily show that the liquid crystal molecule of liquid crystal layer 30 does not deflect when the display panel is in the white state display mode, and when the display panel is in the photographing mode or in the dark state, the liquid crystal molecule deflects, and further, the liquid crystal molecule that can also set up liquid crystal layer 30 deflects when the display panel is in the white state display mode, and when the display panel is in the photographing mode or in the dark state, the liquid crystal molecule does not deflect.
The embodiment of the utility model provides a display module assembly, through set up light sense component holding hole on the backlight unit that is located first display area, light sense component holding downthehole photosensitive element that is provided with, and be provided with light polarization selection layer between backlight unit and the liquid crystal layer, when display panel is in the mode of shooing, the light of incidenting to the liquid crystal layer transmits to light sense component holding hole behind light polarization selection layer, the setting is received ambient light at the downthehole photosensitive element of light sense component holding and is realized shooing. In the first display area, when the display panel is in a white display mode, light incident to the liquid crystal layer is reflected back to human eyes after passing through the light polarization state selection layer, and when the display panel is in a dark display mode, light incident to the liquid crystal layer is transmitted into the liquid crystal layer after passing through the light polarization state selection layer. In the second display area, the polarization directions of the first polarization layer and the second polarization layer are perpendicular to each other, and when no external electric field is applied to the liquid crystal, after light from a backlight passes through the lower-layer polarizer, the polarized light rotates 90 degrees through the polarization direction of the 90-degree TN liquid crystal, and can form a white state through the first polarization layer. When an external electric field is applied to the liquid crystal, after light from the backlight passes through the second polarizing layer, the polarization direction of the polarized light is unchanged through the vertically arranged liquid crystal and cannot pass through the upper-layer polarizer to form a black state, and at the moment, the first display area and the second display area both display pictures, so that full-screen display of the display panel is realized.
Example two
Optionally, on the basis of the above embodiment, fig. 3 is a schematic structural diagram of a display module according to a second embodiment of the present invention, and as shown in fig. 3, the light polarization state selection layer 400 includes a metal wire grid 410.
Illustratively, as shown in fig. 3, by arranging the light polarization state selection layer 400 to include the metal wire grid 410, when the ambient light reaches the metal wire grid 410 through the liquid crystal layer 30, the ambient light in a direction parallel to the wire grid of the metal wire grid 410 cannot be reflected through the metal wire grid, and the incident light in a direction perpendicular to the wire grid of the metal wire grid 410 can be transmitted through the metal wire grid 410.
Fig. 4 is a schematic structural diagram of a metal wire grid according to a second embodiment of the present invention, as shown in fig. 4, wherein a width W of the metal wire grid is less than 1um, a height T of the metal wire grid is less than 1um, a total length P of a gap between two adjacent metal wire grids and the width W of the metal wire grid is about 200nm, and the metal wire grid is made of metal Al.
Optionally, on the basis of the above embodiment, fig. 5 is a schematic structural diagram of another display module provided by the second embodiment of the present invention, fig. 6 is a schematic partial structural diagram of a display panel provided by the second embodiment of the present invention, and with reference to fig. 5 and fig. 6, the metal wire grid 410 includes at least one hollow structure 420, the first display area AA1 includes a plurality of sub-pixels, and a vertical projection of at least one sub-pixel 110 on the first substrate 10 is located in a vertical projection of the hollow structure 420 on the first substrate 10.
It should be noted that fig. 3 exemplarily shows that the vertical projection of the metal wire grid 410 on the first substrate 10 completely overlaps the first display area AA1, and it is also possible to arrange that the metal wire grid 410 includes at least one hollow structure 420, and the vertical projection of at least one sub-pixel 110 on the first substrate 10 is located within the vertical projection of the hollow structure 420 on the first substrate 10, as shown in fig. 5. Since the metal wire grid 410 does not completely cover the sub-pixels of the first display area AA1, that is, the sub-pixel 110 is partially covered by the metal wire grid 410, and the sub-pixel 110 is partially uncovered by the metal wire grid 410, when the liquid crystal layer 30 is driven by the display panel regardless of the presence or absence of an external electric field, a part of the ambient light incident on the display panel can be incident on the light-sensing element 300 through the hollow structure 420, so as to realize the image capturing of the display module. When the display module is in a display mode, the display panel is completed, the display area of each sub-pixel part is provided with the metal wire grid 410, when an external electric field drives liquid crystal molecules of the liquid crystal layer, the liquid crystal molecules of the liquid crystal layer 30 rotate, ambient light can penetrate through the light polarization state selection layer after passing through the liquid crystal layer 30, and the display panel displays in a black state. When no external electric field drives the liquid crystal, the liquid crystal molecules of the liquid crystal layer 30 are not deflected, the ambient light cannot penetrate through the light polarization state selection layer 400 after passing through the liquid crystal layer 30, and the display panel displays white.
EXAMPLE III
Optionally, on the basis of the foregoing embodiment, fig. 7 is a schematic structural diagram of a display module according to a third embodiment of the present invention, as shown in fig. 7, the display panel further includes a color filter layer 50, the color filter layer 50 is located on one side of the second substrate 20 close to the liquid crystal layer 30, the color filter layer 50 includes a second hollow structure 51, and a vertical projection of the second hollow structure 51 on the first substrate 10 is located in the first display area AA 1.
As shown in fig. 7, by providing the color filter layer 50 on the side of the second substrate 20 close to the liquid crystal layer 30, color display in the second display area AA2 is realized. The color filter layer 50 includes the second hollow structure 51, and the vertical projection of the second hollow structure 51 on the first substrate 10 is located in the first display area AA1, so as to avoid the influence of the color filter layer 50 located in the first display area AA1 on the shooting effect of the display module when the display module is in the shooting mode.
Alternatively, the wire grid direction of the light polarization state selection layer 400 is perpendicular to the polarization direction of the first polarizing layer 40, and each of the first display area AA1 and the second display area AA2 includes a plurality of sub-pixels. The sub-pixels of the first display area AA1 are powered on in the photographing mode, and light incident on the liquid crystal layer 30 of the first display area AA1 is transmitted through the light polarization state selection layer 400. The sub-pixels in the first display area AA1 are turned off in the display mode, the light incident on the liquid crystal layer 30 in the first display area AA1 is reflected by the light polarization state selection layer 400 to form a dark state display, or the sub-pixels in the first display area AA1 are powered on in the display mode, and the light incident on the liquid crystal layer 30 in the first display area AA1 is transmitted by the light polarization state selection layer 400 to form a dark state display.
For example, in the first embodiment, fig. 1 is a schematic structural view of a display module in a white display mode, as shown in fig. 1, a direction of a wire grid of a light polarization state selection layer 400 is perpendicular to a polarization direction of a first polarization layer 40, in the white display mode, a sub-pixel located in a first display area AA1 is in an off state, liquid crystal molecules of a TN-type liquid crystal layer 30 are in a 90 ° rotation state without deflection, at this time, ambient light is changed into linearly polarized light after passing through the first polarization layer 40, a polarization state of the liquid crystal layer 30 is rotated by 90 °, and a polarization state of the liquid crystal layer is perpendicular to the wire grid direction of a metal wire grid, so that the ambient light incident to the light polarization state selection layer 400 is reflected to a second substrate 20, thereby forming white display of the display module. When displaying in the black state, the sub-pixels in the first display area AA1 are in the power-up state, as shown in fig. 2, since the first display area AA1 is in the power-up state, the liquid crystal molecules of the liquid crystal layer 30 are deflected to the state perpendicular to the substrate, and after the ambient light passes through the liquid crystal layer 30, the deflected state is parallel to the direction of the wire grid of the light polarization state selection layer 400, and the ambient light passes through the light polarization state selection layer 400 to form the dark state display of the display module, which can also be photographed in this form.
Optionally, the wire grid direction of the light polarization state selection layer 400 is parallel to the polarization direction of the first polarization layer 40, the first display area AA1 and the second display area AA2 each include a plurality of sub-pixels, the sub-pixels in the first display area AA1 are turned off in the shooting mode, and light incident on the liquid crystal layer 30 in the first display area AA1 is transmitted through the light polarization state selection layer 400. The sub-pixels in the first display area AA1 are powered on in the display mode, the light incident on the liquid crystal layer 30 in the first display area AA1 is reflected by the light polarization state selection layer 400 to form a white display, or the sub-pixels in the first display area are powered off in the display mode, and the light incident on the liquid crystal layer 30 in the first display area AA1 is transmitted by the light polarization state selection layer 400 to form a dark display.
Further, the wire grid direction of the light polarization state selection layer 400 may be set to be parallel to the polarization direction of the first polarization layer 40, when the display module is in the white mode, the sub-pixels of the first display area AA1 are set to be in the power-up state, the liquid crystal molecules of the liquid crystal layer 30 are deflected to be perpendicular to the first substrate, at this time, after the ambient light passes through the liquid crystal layer 30, the deflection state is parallel to the wire grid direction of the light polarization state selection layer 400, and the ambient light is reflected to the second substrate 20 by the light polarization state selection layer 400, so as to form the white display of the display module. When the display module assembly is the dark mode, the sub-pixel that sets up first display area AA1 is the outage state, and the liquid crystal molecule of liquid crystal layer 30 is 90 rotatory states and does not have the deflection, and ambient light becomes the linear polarization behind the first polarisation layer 40 this moment, through the rotatory 90 of liquid crystal layer 30 polarization state, and its polarization state is perpendicular with the wire grid direction of light polarization state selection layer 400 this moment, and ambient light passes through light polarization state selection layer 400, forms the black display of display module assembly, also can shoot through this form.
Optionally, on the basis of the above embodiment, fig. 8 is a schematic structural diagram of another display module according to the third embodiment of the present invention, as shown in fig. 8, further including a light supplement source 600, where the light supplement source 600 is located on the side wall of the light sensing element accommodating hole 101.
Exemplarily, when the display module is in a dark environment, because the external environment light is dark, no ambient light is reflected to the second substrate 20 through the light polarization state selection layer 400, the reflective display capability is insufficient, at this time, the first display area AA1 cannot normally display a picture, therefore, the light supplement source 600 is arranged on the side wall of the light sensing element accommodating hole 101, when the display panel is in a dark environment for displaying, the light supplement source 600 is opened at this time, the light supplement source 600 is utilized for supplementing light to the first display area AA1, light emitted by the light supplement source 600 irradiates to the first display area AA1 through the light guide film layer in the light sensing element accommodating hole 101, and transmissive display of the first display area AA1 is realized. And when the display module assembly was in the shooting mode in dark surrounds, can set up at this moment and supply light source 600 and close, the sub-pixel of first display area AA1 was in the outage state, and the light that utilizes second display area AA2 shines on being shot the object, gets into light sensing element through being shot the reflection of object, realizes shooting function, and then realizes the full-face screen display of display module assembly under the dark state condition and shows.
When the display module assembly is in bright environment, light filling source 600 closes, and first display area AA1 shows through ambient light, and the wire grid direction perpendicular to polarisation layer 40 of light polarization state selection layer 400 the polarization direction, when the liquid crystal layer is in not power up state, external environment light can see through light polarization state selection layer 400 and form the dark state and show, and when the liquid crystal layer was powered up, external environment light was reflected back to people's eye by light polarization state selection layer 400 and is formed the white state and show. When in the photographing mode, also the pixels of the first display area AA1 are in the power-off state, and ambient light is transmitted into the light sensing element, thereby realizing a photographing function.
For example, the ambient light sensing module may be disposed in the display panel, and when the ambient light sensing module senses that the environment of the display panel gradually changes from a bright environment to a dark environment, the light supplement source 600 is turned on in advance according to the sensed dark brightness degree of the ambient light, so as to ensure the display effect of the first display area of the display panel in the dark environment.
Optionally, on the basis of the above embodiment, fig. 9 is a schematic structural view of another display module according to a third embodiment of the present invention, as shown in fig. 9, in the first display area AA1, the light sensing element accommodating hole 101 penetrates through the backlight module 100 along a direction perpendicular to the plane of the display panel 200.
Optionally, the display module further includes an auxiliary light guiding film 500, wherein the auxiliary light guiding film 500 is located in the first display area AA1 and is located on a side of the light sensing surface of the light sensing element 300 facing the display panel 200.
Exemplarily, when the display module assembly is in the dark surrounds, because the external environment light is darker, no ambient light passes through light polarization state selective layer 400 and reflects to second base plate 20, the reflection display capacity is not enough, the unable normal display picture of first display area AA1 this moment, can set up supplementary leaded light film 500 through the sensitization face at light sense element 300 towards one side of display panel 200 this moment, utilize supplementary leaded light film 500 to derive the light of complementing light source 600 outgoing to first display area AA1, realize the demonstration of first display area AA1, realize the comprehensive screen display of dark surrounds display panel.
Optionally, on the basis of the above embodiment, the embodiment of the present invention further provides an electronic device, including any one of the above embodiments of the display module, the electronic device may be a mobile phone, a tablet computer, a wearable device with intelligence (for example, a smart watch), or another display device with a fingerprint identification function known to those skilled in the art, and the embodiment of the present invention is not limited thereto.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A display module comprises a first display area and a second display area, wherein the second display area at least partially surrounds the first display area; the display module assembly still includes: the display panel comprises a first substrate, a second substrate, a liquid crystal layer and a first polarizing layer; the liquid crystal layer is located first base plate with between the second base plate, first polarisation layer is located the second base plate deviates from one side of liquid crystal layer, backlight unit is located first base plate deviates from one side of liquid crystal layer, its characterized in that:
in the first display area, the backlight module is provided with a light sensing element accommodating hole; the vertical projection of the light sensing element accommodating hole on the first substrate is positioned in the first display area;
the light sensing element is at least partially arranged in the light sensing element accommodating hole, and the light sensing surface of the light sensing element faces the display panel;
the light polarization state selection layer is positioned between the backlight module and the liquid crystal layer, and the vertical projection of the light polarization state selection layer on the first substrate is positioned in the first display area;
the second polarizing layer is positioned on one side, close to the backlight module, of the first substrate, and the vertical projection of the second polarizing layer on the first substrate is positioned in the second display area;
when the first display area is in a shooting mode, at least part of light rays incident to the liquid crystal layer are transmitted to the light sensing element accommodating hole after being selected by the light polarization state selection layer;
when the first display area is in a display mode, light rays incident to the liquid crystal layer are selected by the light polarization state selection layer and then at least partially reflected to form white state display of the display panel or at least partially transmitted to form dark state display of the display panel.
2. A display module according to claim 1, wherein the light polarization state selection layer comprises a wire grid of metals.
3. The display module according to claim 2, wherein the metal wire grid comprises at least one hollow structure;
the first display area comprises a plurality of sub-pixels, and the vertical projection of at least one sub-pixel on the first substrate is positioned in the vertical projection of the hollow structure on the first substrate.
4. The display module of claim 1, wherein the display panel further comprises a color filter layer on a side of the second substrate adjacent to the liquid crystal layer;
the color filter layer comprises a second hollow structure, and the vertical projection of the second hollow structure on the first substrate is located in the first display area.
5. A display module according to claim 1, wherein the wire grid direction of the light polarization state selection layer is perpendicular to the polarization direction of the first polarizing layer, and the first display area and the second display area each comprise a plurality of sub-pixels;
the sub-pixels of the first display area are powered up in a shooting mode, and light rays incident to the liquid crystal layer of the first display area are transmitted after passing through the light polarization state selection layer;
the sub-pixels of the first display area are powered off in a display mode, and light rays incident to the liquid crystal layer of the first display area are reflected through the light polarization state selection layer to form white state display; or the like, or, alternatively,
and when the sub-pixels of the first display area are powered up in a display mode, light incident to the liquid crystal layer of the first display area is transmitted through the light polarization state selection layer to form dark state display.
6. A display module according to claim 1, wherein the wire grid direction of the light polarization state selection layer is parallel to the polarization direction of the first polarizing layer, and the first display area and the second display area each comprise a plurality of sub-pixels;
the sub-pixels of the first display area are powered off in a shooting mode, and light rays incident to the liquid crystal layer of the first display area are transmitted after passing through the light polarization state selection layer;
when the sub-pixels of the first display area are powered up in a display mode, light rays incident to the liquid crystal layer of the first display area are reflected through the light polarization state selection layer to form white state display; or the like, or, alternatively,
and the sub-pixels of the first display area are powered off in the display mode, and light rays incident to the liquid crystal layer of the first display area are transmitted through the light polarization state selection layer to form dark state display.
7. The display module as claimed in claim 1, further comprising a light supplement source disposed on a sidewall of the light sensing element receiving hole.
8. The display module as claimed in claim 7, wherein the light-sensing element receiving hole penetrates the backlight module in a direction perpendicular to a plane of the display panel in the first display area.
9. The display module according to claim 8, wherein the display module further comprises an auxiliary light guide film; the auxiliary light guide film is positioned in the first display area and positioned on one side, facing the display panel, of the light sensing surface of the light sensing element.
10. An electronic device comprising the display module according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023050478.5U CN213780604U (en) | 2020-12-17 | 2020-12-17 | Display module assembly and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023050478.5U CN213780604U (en) | 2020-12-17 | 2020-12-17 | Display module assembly and electronic equipment |
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| CN213780604U true CN213780604U (en) | 2021-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116051A1 (en) * | 2021-12-21 | 2023-06-29 | 中兴通讯股份有限公司 | Under-screen camera assembly and terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116051A1 (en) * | 2021-12-21 | 2023-06-29 | 中兴通讯股份有限公司 | Under-screen camera assembly and terminal |
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