CN115295601A - Display module and display device - Google Patents

Abstract

The present disclosure provides a display module, which includes a display panel, a camera device, an imaging device and a light guide device. The display panel includes a display region including a first region in which pixels are arranged and a light-transmissive second region. And the camera device, the imaging device and the light guide device are respectively positioned on the backlight side of the display panel. Wherein the light guiding device is configured to guide incident light incident to the second region from the display side of the display panel to the image pickup device, and guide outgoing light emitted from the imaging device to the second region. The display module assembly that this disclosure provided passes through imaging device and forms images in the second region, need not set up the pixel in display panel's printing opacity district, when utilizing imaging device to improve display effect, can improve the regional luminousness of second, and then improves camera device's the effect of making a video recording.

Description

Display module and display device

Technical Field

The utility model relates to a show the field, specifically, relate to a display module assembly and display device including this display module assembly.

Background

With the continuous development of display panel technology, people have higher and higher requirements on display panels, and how to realize a full-screen becomes a hot issue of current research. However, the area where the camera is disposed in the display area of the screen is required to be used for displaying images and to have light transmittance so as to have both display and imaging functions.

However, the display function and the camera function conflict with each other, the better the display effect is, the worse the imaging effect is, which severely limits the promotion of the display effect and the camera effect. Therefore, how to improve the display effect of the light-transmitting area and the image capturing effect of the camera becomes a problem which needs to be solved urgently.

Disclosure of Invention

The utility model provides a display module assembly and display device adopts image device to form images in display panel's printing opacity district, can not set up the pixel in display panel's printing opacity district, has improved the regional luminousness of printing opacity, and then improves camera device's the effect of making a video recording. And the display effect can be improved by adjusting the light intensity of the imaging device while the camera shooting effect is improved. Therefore, the problem of the mutual conflict between the display function and the image pickup function can be solved by using the image pickup device and the imaging device which do not interfere with each other.

The first aspect of the present disclosure provides a display module, which includes a display panel, a camera device, an imaging device, and a light guide device. The display panel includes a display region including a first region in which pixels are arranged and a light-transmissive second region. And the camera device, the imaging device and the light guide device are respectively positioned on the backlight side of the display panel. Wherein the light guide device is configured to guide incident light entering the second region from the display side of the display panel to the image pickup device, and guide outgoing light exiting the imaging device to the second region.

The display module assembly that this disclosure provided passes through image device and forms images in the second region, need not set up the pixel in display panel's printing opacity district, has improved the regional luminousness of second, and then can improve camera device's the effect of making a video recording.

In a particular embodiment of the first aspect of the disclosure, the light guiding device at least partially overlaps the second area in an orthographic projection of the display panel.

In the above embodiment, by arranging the light guide device to change the path of the incident light in the second region, this way can avoid the mutual position conflict between the imaging device and the imaging device, and can avoid the mutual interference between the light for display and the light for image pickup, thereby ensuring the display effect and the image pickup effect of the second region.

In one embodiment of the first aspect of the present disclosure, the light guiding device is a two-way mirror, and the imaging device and the camera device are respectively located on both sides of the light guiding device.

By arranging the light guide device as a two-way mirror, the camera device and the imaging device can be respectively arranged on two sides of the two-way mirror, so that the flexibility of the positions where the camera device and the imaging device are arranged can be increased.

In a specific embodiment of the first aspect of the present disclosure, the reflection surface of the two-way mirror faces the image pickup device and the second region, the reflection surface of the two-way mirror faces away from the image pickup device, and the two-way mirror is disposed to be inclined with respect to the display panel.

In a specific embodiment of the first aspect of the present disclosure, the reflection surface of the two-way mirror faces the imaging device and the second area, the reflection surface of the two-way mirror faces away from the imaging device, and the two-way mirror is disposed to be inclined with respect to the display panel.

Because the proportion of the light reflected by the two-way mirror is large, the reflecting surface is arranged towards the imaging device, so that the light emitted by the imaging device is reflected by the two-way mirror and then projected to the second area, the intensity attenuation of the light emitted by the imaging device can be reduced, and the imaging effect is further improved.

In one embodiment of the first aspect of the present disclosure, the light directing device is a mirror, and the imaging device and the camera device are located on the same side of the mirror.

In one specific embodiment of the first aspect of the present disclosure, a reflective surface of the reflective mirror faces the imaging device, the image pickup device, and the second area, and the reflective mirror is disposed to be inclined with respect to the display panel.

The camera device receives the incident light reflected by the reflector, and the emergent light is emitted from the second area after being reflected by the reflector. Because the reflectivity of the reflector to light is high, the intensity attenuation of incident light and emergent light can be reduced, and therefore the light guide device is set as the reflector, so that the display effect and the camera shooting effect can be improved.

In a specific embodiment of the first aspect of the present disclosure, the light guiding device includes at least one of a plane mirror, a convex lens, a concave lens, and a prism.

In one embodiment of the first aspect of the present disclosure, the imaging device comprises a digital micromirror device chip or a laser emitter.

A second aspect of the present disclosure provides a display device including the display module and the main board as referred to in the first aspect. The mainboard is fixedly connected with a light guide device, a camera device and an imaging device in the display module.

The display module assembly that this disclosure provided passes through image device and forms images in the second region, need not set up the display effect and the effect of making a video recording that the pixel can improve non-light tight second region in display panel's non-light tight second region.

Drawings

Fig. 1 is a schematic top view of a display module according to at least one embodiment of the present disclosure.

Fig. 2 is a schematic cross-sectional view of a display module according to at least one embodiment of the present disclosure.

Fig. 3 is a schematic diagram of optical paths of incident and outgoing light rays in accordance with at least one embodiment of the present disclosure.

Fig. 4 is a schematic diagram of optical paths of incident and outgoing light rays in accordance with at least one embodiment of the present disclosure.

Fig. 5 is a schematic diagram of optical paths of incident and outgoing light rays in accordance with at least one embodiment of the present disclosure.

Fig. 6 is a schematic cross-sectional view of a display module according to at least one embodiment of the present disclosure.

Fig. 7 is a schematic cross-sectional view of a display module according to at least one embodiment of the disclosure.

Fig. 8 is a top view of a display device provided in at least one embodiment of the present disclosure.

Fig. 9 is a cross-sectional view of a display device provided in at least one embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only some embodiments of the present disclosure, rather than all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

One side of the display screen of cell-phone can set up leading camera usually, along with the consumer to the requirement of display effect more and more high, comprehensive screen is compared because its super high screen and is received consumer's favor. How to realize a full-screen and simultaneously have a camera shooting function becomes a problem which needs to be solved urgently.

In one embodiment, the under-screen camera display panel realizes the camera shooting function of a full screen by arranging the front camera under the screen. Specifically, the region that the camera corresponds under display panel and screen sets up to the light transmission district, and the light transmission district is for other display areas, and pixel density and area reduce to increase the light transmissivity in this region, make the camera that sets up the position that deviates from the light-emitting side in this region can see through the light transmission district and gather outside light. However, pixels are arranged in the area, so that pixels exist on the optical path of the camera all the time, and the imaging effect is influenced. However, if the pixel density is further decreased to improve the image forming effect, the display effect is significantly reduced. Therefore, this approach limits the improvement of the display effect and the imaging effect.

In view of this, at least one embodiment of the present disclosure provides a display module including a display panel, a camera device, an imaging device and a light guide device. The image pickup device, the imaging device and the light guide device are respectively positioned on the backlight side of the display panel. The display panel includes a light-transmissive second region. The light guide device is configured to guide an incident light ray incident to the second region from the display side of the display panel to the image pickup device, and guide an outgoing light ray emitted from the imaging device to the second region. The display module assembly that this disclosure provided passes through image device and forms images in the second region, need not set up the pixel in display panel's printing opacity district, has solved the problem of conflict each other between display function and the function of making a video recording, and then can improve the regional display effect of printing opacity and formation of image effect.

Hereinafter, a touch panel and an electronic device according to at least one embodiment of the present disclosure will be described with reference to the drawings. Further, as shown in the drawings, in at least one embodiment of the present disclosure, a spatial rectangular coordinate system is established with respect to a surface (e.g., a surface facing a user) on which the display panel is located to define positions of the display panel and thus each element in the display device. In the rectangular space coordinate system, the X axis and the Y axis are parallel to the surface of the display panel, the Z axis is perpendicular to the surface of the display panel, and in the drawings, the light emitting direction of the display panel is the positive direction of the Z axis. In addition, in the following embodiments of the present disclosure, "up" and "down" of the target are defined according to the Z-axis, for example, for the display panel, the direction of the display panel facing the light exit side is actually the negative direction of the Z-axis, so that the light exit side of the display panel can be expressed as the upper side or the upper side of the display panel; the direction of the display panel facing the non-light emitting side is actually the positive direction of the Z-axis, so that the non-light emitting side of the display panel can be expressed as the lower side or the lower side of the display panel.

Fig. 1 is a schematic top view of a display module according to at least one embodiment of the present disclosure. As shown in fig. 1, the display module 100 includes a display panel 10, an image capturing device 20, an image forming device 30, and a light guiding device 40.

Fig. 2 is a schematic cross-sectional view taken along line a-B of fig. 1. As shown in fig. 1 and fig. 2, the display panel 10 includes a display area 11 and a non-display area 12, taking a mobile phone as an example, the display area 11 of the display panel 10 corresponds to an area where an image is displayed by the mobile phone, and the non-display area 12 of the display panel 10 is located in an area corresponding to a frame of the mobile phone. The display panel 10 is an OLED display panel, and the display region 11 includes a first region 111 and a light-transmissive second region 112, where a plurality of pixels including OLED light-emitting devices are arranged in the first region 111, and pixels including OLED light-emitting devices are not arranged in the second region 112.

The image pickup device 20, the imaging device 30, and the light guide device 40 are respectively located on the backlight side of the display panel 10. The light guiding device 40 is configured to guide incident light, which is incident to the second region 112 from the display side of the display panel 10, to the image pickup device 20, and guide outgoing light, which is emitted from the imaging device 30, to the second region 112. The display side L1 is a light emitting side of the display panel 10, that is, a side of the display panel 10 facing a negative direction of the Z axis.

Further, the orthographic projection of the light guiding device 40 on the display panel 10 at least partially overlaps the second area 112. The projections of the image pickup device 20 and the imaging device 30 on the display panel 10 hardly overlap with the second region 112. By arranging the light guide device 40, the path of the incident light passing through the second area 112 is changed, so that the imaging device 20 which is not arranged corresponding to the second area 112 can receive the incident light for imaging, and the light emitted by the imaging device 20 which is not arranged corresponding to the second area 112 can be projected to the second area 112.

Specifically, in at least one embodiment, the imaging Device 30 may be a structure corresponding to a Digital Light Processing (DLP) technology, for example, a Digital micro mirror Device (DMD) chip for generating the emitted Light. Alternatively, the imaging device 30 may be a structure corresponding to a laser imaging technology, such as a laser emitter for generating emitting light. The imaging device 30 is not disposed corresponding to the second region 112, the imaging device 30 emits a predetermined light beam, and the predetermined light beam is projected on the second region 112 of the display panel 10 under the guidance of the light guiding device 40 to form a predetermined image, and the image of the second region 112 and the image of the first region 111 are integrated. That is, the image is formed in the second region 112 by the imaging device 30 instead of the pixels, so that the full-screen display can be realized without disposing the pixels in the second region 112 of the display panel 10.

The camera device 20 may be a camera or the like for capturing images or video. The incident light is guided to the image capturing device 20 through the light guiding device 40 through the second region 112, because no pixel is disposed in the second region 112, the light transmittance is high, and the imaging effect of the image capturing device 20 is significantly improved. In addition, since the display device and the imaging device 20 are independent from each other and do not interfere with each other, this arrangement can improve the imaging effect and further improve the display effect of the second region 112 by adjusting the intensity of the light emitted from the imaging device 30. Therefore, the present disclosure solves the limitation between the camera function and the display function by setting the imaging device 30 to display the image in the second area 112, thereby improving the display effect and the camera effect of the display module 100.

In order to further improve the imaging effect of the camera device 20, in at least one alternative embodiment, a through hole may be disposed in the second region 112, the through hole penetrates through the display panel 10, and the size of the through hole is substantially the same as that of the second region 112. The second region 112 is a through hole, which further improves the light transmittance, and thus the image capturing device 20 has a better image forming effect.

If the light guide device 40 is not provided, the image pickup device 20 and the imaging device 30 need to be provided corresponding to the second region 112, and the degree of freedom in the positions of the image pickup device 20 and the imaging device 30 is small. By arranging the light guide device 40, the camera device 20 and the imaging device 30 do not interfere with each other, and the camera device 20 and the imaging device 30 can be arranged at a plurality of different positions, so that higher flexibility is achieved, and the positions of the camera device 20 and the imaging device 30 can be changed according to design requirements.

Further, the present disclosure provides several embodiments of different relative position relationships between the image capturing device 20 and the imaging device 30, and the relative position relationship between each part in the display module 100 in at least one embodiment of the present disclosure is described below with reference to the drawings.

In at least one embodiment of the present disclosure, the light guiding device 40 is a two-way mirror, and the imaging device 30 and the camera device 20 are located on both sides of the light guiding device 40.

Specifically, referring to fig. 3 and 4, the two-way mirror is also called a single-sided see-through glass, and specifically, a metal reflective layer 42 is applied on a common glass 41 by vacuum coating. Since the metal reflective layer 42 has a thin thickness, most of the light can be reflected, but some of the light can transmit through the metal reflective layer 42. The side of the metal reflecting layer 42 close to the glass is the reflecting surface of the two-way mirror, and the imaging device 30 and the camera device 20 are respectively arranged on two sides of the reflecting surface.

By providing the light guiding device 40 as a two-way mirror, the image capturing device 20 and the image forming device 30 can be respectively disposed on two sides of the two-way mirror, so that flexibility of the positions where the image capturing device 20 and the image forming device 30 are disposed can be increased, and the situation that the image capturing device 20 and the image forming device 30 are not provided with enough accommodation space can be avoided.

Further, the reflection surface of the two-way mirror faces the image pickup device 20 and the second area 112, the reflection surface of the two-way mirror faces away from the imaging device 30, and the two-way mirror is disposed to be inclined with respect to the display panel.

Referring to fig. 3 and 4, the image pickup device 20 receives light after incident light is reflected by the bidirectional mirror. The emergent light rays are refracted by the bidirectional mirror and then are emergent from the second area. As shown in fig. 3, the glass of the two-way mirror may be a plane structure, and the outgoing light rays are substantially parallel to the transmitted light rays after being transmitted through the two-way mirror. As shown in fig. 4, the glass of the two-way mirror may be a non-planar structure, and the direction of the emergent light changes after passing through the two-way mirror.

Through the shape on the surface of the two-way mirror of adjustment, can adjust the light direction, and then adjust camera device and image device's position, can make camera device and image device have higher flexibility ratio like this.

Because the proportion of the light that two-way mirror was reflected is great, sets up the plane of reflection towards camera device 20, makes camera device 20 receive the light of incident light after by two-way mirror reflection, can improve the intensity of camera device 20 light of receiving, and then improves the effect of making a video recording. Although the two-way mirror reflects only a part of the incident light and also causes a certain light loss, the light loss caused by the two-way mirror is smaller than that caused by the pixels disposed in the second region, so the proportion of the incident light entering the image pickup device in the present embodiment is larger than that in the scheme in which the pixels are disposed in the second region. Although the light of the imaging device passes through the two-way mirror and has certain intensity attenuation, the display effect can be improved by adjusting the light intensity of the imaging device. Therefore, the camera device and the imaging device cannot influence each other, the display effect cannot be reduced while the camera effect is improved, and the camera effect and the display effect do not conflict with each other.

Specifically, the tilt angle of the two-way mirror is adaptively adjusted according to the design of the image pickup device 20 and the imaging device 30, for example, the tilt angle, that is, the angle between the two-way mirror and the display panel 10 may be 30 °, 40 °, 45 °, 50 °, or 60 °, and so on. In addition, the relative positions of the two-way mirror and the display panel 10 can also be adjusted adaptively, as shown in fig. 3 and 4, one end of the two-way mirror close to the display panel 10 is located at a position of the second region 112 close to the upper edge of the display panel, and one end of the two-way mirror far away from the display panel 10 is located at a position of the second region 112 close to the lower edge of the display panel, and in at least one embodiment, as shown in fig. 5, one end of the two-way mirror close to the display panel 10 can also be located at a position of the second region 112 close to the lower edge of the display panel. In other embodiments, one end of the two-way mirror near the display panel 10 may also be located at a position of the second region 112 near the edges of the left and right sides of the display panel.

Fig. 6 is a schematic cross-sectional view of a display module 100 according to at least one embodiment of the disclosure. As shown in fig. 6, in at least one embodiment, in order to improve the display effect, the embodiment is different from the embodiment shown in fig. 2 only in that the positions of the image pickup device 20 and the imaging device 30 are reversed. Specifically, the reflection surface of the two-way mirror faces the imaging device 30 and the second region 112, the reflection surface of the two-way mirror faces away from the imaging device 20, and the two-way mirror is disposed to be inclined with respect to the display panel. The camera device 20 receives the light beam of the incident light beam reflected by the two-way mirror, and the light beam of the emergent light beam reflected by the two-way mirror exits from the second area.

Because the proportion of the light reflected by the bidirectional mirror is relatively large, the reflecting surface is arranged towards the imaging device 30, so that the light emitted by the imaging device 30 is reflected by the bidirectional mirror and then projected to the second area 112, the intensity attenuation of the light emitted by the imaging device 30 can be reduced, and the imaging effect is further improved.

In at least one embodiment of the present disclosure, in order to reduce the intensity attenuation during the propagation of the light, as shown in fig. 7, this embodiment differs from the embodiment shown in fig. 2 and 6 in that the light guiding device 40 is a mirror (e.g., a planar mirror), and the imaging device 30 and the imaging device 20 are located on the same side of the mirror. Specifically, the reflective surface of the mirror faces the imaging device 30, the image pickup device 20, and the second region 112, and the mirror is disposed to be inclined with respect to the display panel. The imaging device 20 receives the incident light reflected by the mirror, and the outgoing light is reflected by the mirror and then exits from the second area. Since the reflective mirror has a high reflectivity for light, the intensity attenuation of light can be reduced, and particularly, the loss of light from the incident light to the image pickup device and the loss of light from the exit light generated by the image pickup device to the second region are both very small, and therefore, the provision of the light guide device 40 as the reflective mirror can improve the display effect and the image pickup effect.

In at least one embodiment of the present disclosure, the image pickup device 20, the imaging device 30, and the light guide device 40 have a predetermined distance from the display panel 10, that is, the image pickup device 20, the imaging device 30, and the light guide device 40 are not directly connected to the display panel 10, so that a sufficient installation space can be reserved for the image pickup device 20, the imaging device 30, and the light guide device 40.

In order to further improve the flexibility of the arrangement positions of the imaging device 20 and the imaging device 30, in at least one embodiment of the present disclosure, the light guiding device 40 may also be an optical structure such as a convex lens, a concave lens, and a prism, which can change the light path. Alternatively, the light guide 40 may be formed by combining a plurality of optical structures.

In order to avoid the simultaneous use of the imaging device 20 and the imaging device 30, the incident light and the emergent light interfere with each other, and the display effect and the imaging effect are not affected. At least one embodiment of the present disclosure provides a display method, including:

step 1: in response to receiving the first instruction, the imaging device 30 is turned on, and the imaging device 20 is turned off.

Specifically, taking the mobile phone executing the method as an example, the first instruction may be that the user wakes up the mobile phone screen. That is, a display mode is entered in which the image pickup device 20 is turned off, the imaging device 30 emits a predetermined light beam, a predetermined image is formed in the second region 112, and the first region 111 and the second region 112 together constitute the predetermined image.

And 2, step: in response to receiving the second instruction, the image pickup device 20 is turned on, and the imaging device 30 is turned off.

Specifically, taking the mobile phone executing the method as an example, the second instruction may be to turn on the camera device 20, that is, enter the camera mode, and start the front camera. In this case, the imaging device 20 is turned on, and the imaging device 30 is turned off, that is, the second region 112 no longer displays images, so that the imaging device 30 is prevented from affecting the image capturing effect of the imaging device 20.

The display device provided by the embodiment of the disclosure and the display module provided by the embodiment of the disclosure belong to the same inventive concept. Details that are not described in detail in the embodiment of the display device can be referred to the embodiment section of the display module, and are not described herein again.

Fig. 8 is a top view of a display device according to an embodiment of the present disclosure. Fig. 9 is a cross-sectional view taken along the line CD in fig. 8. At least one embodiment of the present disclosure provides a display apparatus, as shown in fig. 8 and 9, the display apparatus 200 includes the display module 100 and the main board 210 as in the above embodiments. The main board 210 is fixedly connected to the light guide device 40, the camera device 20 and the imaging device 30 in the display module 100. Specifically, the light guiding device 40, the image capturing device 20, and the imaging device 30 may be fixedly connected to the motherboard directly or indirectly, respectively.

The display device 200 further includes a housing 201 and a cover 202, wherein the cover 202 is a transparent structure, the housing 201 and the cover 202 form an accommodating space, and the display module 100 is disposed in the accommodating space.

The display device further includes electronic components such as a battery (not shown). The case 201 and the cover 202 protect the display module 100 and the electronic components such as the battery provided therein.

Specifically, the display device may be an electronic product such as a smart phone, a computer monitor, a game machine, and a television. For example, the display device may be a smartphone.

The display equipment provided according to the embodiment of the disclosure and the display module provided by the embodiment of the disclosure belong to the same inventive concept, and have corresponding structures and beneficial effects. Details that are not described in detail in the embodiment of the display device can be referred to the embodiment section of the display module, and are not described herein again.

The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, etc. made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.

Claims (10)

1. A display module, comprising:

the display panel comprises a display area and a control unit, wherein the display area comprises a first area and a light-transmitting second area, and pixels are arranged in the first area;

the imaging device, the imaging device and the light guide device are respectively positioned on the backlight side of the display panel;

wherein the light guide device is configured to guide an incident light incident to the second region from a display side of the display panel to the image pickup device, and guide an outgoing light emitted from the imaging device to the second region.

2. The display module of claim 1, wherein an orthographic projection of the light guide device on the display panel at least partially overlaps the second region.

3. The display module according to claim 1 or 2, wherein the light guiding device is a two-way mirror, and the imaging device and the camera device are respectively located on two sides of the light guiding device.

4. The display module according to claim 3, wherein a reflective surface of the two-way mirror faces the image pickup device and the second region, the reflective surface of the two-way mirror faces away from the image pickup device, and the two-way mirror is disposed to be inclined with respect to the display panel.

5. The display module of claim 3, wherein the reflective surface of the two-way mirror faces the imaging device and the second region, the reflective surface of the two-way mirror faces away from the image capture device, and the two-way mirror is disposed to be tilted with respect to the display panel.

6. The display module of claim 2, wherein the light guide device is a reflective mirror, and the imaging device and the camera device are respectively located on the same side of the reflective mirror.

7. The display module of claim 6, wherein a reflective surface of the reflective mirror faces the imaging device, the camera device, and the second region, and the reflective mirror is disposed to be tilted with respect to the display panel.

8. A display module according to claim 1 or 2, wherein the light guiding means comprises at least one of a plane mirror, a convex lens, a concave lens and a prism.

9. The display module of claim 1 or 2, wherein the imaging device comprises a digital micromirror device chip or a laser emitter.

10. A display device, comprising:

a display module according to any one of claims 1-9; and

the mainboard, with light guiding device, camera device and the image device fixed connection among the display module assembly.

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