CN112017542A - Display module and display device - Google Patents

Display module and display device Download PDF

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Publication number
CN112017542A
CN112017542A CN202010879939.5A CN202010879939A CN112017542A CN 112017542 A CN112017542 A CN 112017542A CN 202010879939 A CN202010879939 A CN 202010879939A CN 112017542 A CN112017542 A CN 112017542A
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China
Prior art keywords
light
display panel
display module
reflection unit
polarizer
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Granted
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CN202010879939.5A
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Chinese (zh)
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CN112017542B (en
Inventor
刘仁杰
陆静茹
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Kunshan Govisionox Optoelectronics Co Ltd
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Kunshan Govisionox Optoelectronics Co Ltd
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Priority to CN202010879939.5A priority Critical patent/CN112017542B/en
Publication of CN112017542A publication Critical patent/CN112017542A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/85Arrangements for extracting light from the devices
    • H10K50/856Arrangements for extracting light from the devices comprising reflective means
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/60OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
    • H10K59/65OLEDs integrated with inorganic image sensors

Abstract

The invention discloses a display module and a display device. The display module comprises a display panel, and the display panel comprises a light-transmitting area; the polaroid is arranged on the light emitting side of the display panel; the light reflection unit is arranged on one side of the polaroid, which is far away from the display panel, and the light reflection unit and the light transmission area are overlapped in the vertical projection in the first direction; the light reflection unit is used for reflecting part of external light emitted by the polaroid; the first direction is a direction in which the display panel points to the polarizer. Set up the light reflection unit through the one side of keeping away from display panel at the polaroid, the partial light in the circular polarization that the light reflection unit produced the polaroid reflects for the light that the light reflection unit reflected penetrates to the light acquisition unit through display panel part at least, thereby increased the light quantity that the light acquisition unit acquireed, when the light acquisition unit was shot, can improve the shooting effect that the light acquireed the unit, and then improved display module's shooting function.

Description

Display module and display device
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display module and a display device.
Background
Along with the full module of display module group shows and display panel's narrow frame design, the outline of display module group and display panel's frame are more and more narrow for the light trap that shoots need set up inside display panel's frame, and the light that penetrates to the camera through display panel by the light source that the camera shooting hole jetted into this moment is less, makes the camera shooting time light source poor, and then leads to the poor problem of display module group's shooting effect.
Disclosure of Invention
The invention provides a display module and a display device, which are used for improving the shooting effect of the display module.
The embodiment of the invention provides a display module, which comprises:
a display panel including a light-transmitting region;
the polaroid is arranged on the light emitting side of the display panel;
the light reflection unit is arranged on one side, away from the display panel, of the polarizer, and the light reflection unit and the light transmission area are overlapped in vertical projection in the first direction; the light reflection unit is used for reflecting part of external light emitted by the polaroid; the first direction is a direction in which the display panel points to the polarizer.
Optionally, a vertical projection of the light reflecting unit in the first direction covers a vertical projection of the light transmitting area in the first direction.
Optionally, the light reflecting unit comprises a polarization modulation wave plate.
Optionally, the display module further comprises a cover plate and a light-transmitting reflection layer; the cover plate is arranged on one side, far away from the polaroid, of the light reflection unit, the light transmitting reflection layer is arranged between the light reflection unit and the cover plate, and at least part of the vertical projection of the light transmitting reflection layer and the light transmitting area in the first direction is overlapped.
Optionally, a difference between a refractive index of the light transmitting and reflecting layer and a refractive index of the cover plate is greater than or equal to 0.5.
Optionally, the light-transmitting reflective layer comprises at least one of a rare earth oxide, a rare earth fluoride, and indium tin oxide.
Optionally, the display module further includes an optical adhesive layer disposed between the light reflection unit and the light transmission reflection layer.
Optionally, along the first direction, the polarizer includes a first quarter-wave plate, a linear polarizer and a second quarter-wave plate, which are sequentially arranged; the first quarter wave plate is arranged between the linear polarizer and the display panel; and the second quarter-wave plate is multiplexed as the protective film of the polarizer.
Optionally, the display module further includes a support structure, and the display panel further includes a backlight side disposed opposite to the light exit side; the support structure is arranged on the backlight side of the display panel;
the supporting structure comprises a hollow structure, and the hollow structure and the perpendicular projection of the light transmission area in the first direction are at least partially overlapped.
In a second aspect, an embodiment of the present invention further provides a display device, including a light obtaining unit and a display module according to any embodiment of the present invention;
the light acquisition unit is arranged on one side of the display panel, which is far away from the polaroid; along the first direction, the orthographic projection of the light-transmitting area is overlapped with the orthographic projection of the light acquisition unit.
According to the technical scheme of the embodiment of the invention, the light reflection unit is arranged on one side of the polaroid, which is far away from the display panel, and reflects part of light in circular polarized light generated by the polaroid, so that the light reflected by the light reflection unit is at least partially emitted to the light acquisition unit through the display panel, and the light quantity acquired by the light acquisition unit is increased.
Drawings
Fig. 1 is a schematic partial cross-sectional view of a display module according to an embodiment of the invention;
fig. 2 is a schematic diagram of a light path of an external light beam entering a display module according to an embodiment of the present invention;
fig. 3 is a schematic partial cross-sectional view of a display module according to another embodiment of the invention;
fig. 4 is a schematic partial cross-sectional view of a display module according to another embodiment of the invention;
fig. 5 is a schematic partial cross-sectional view of a display module according to yet another embodiment of the invention;
fig. 6 is a schematic structural diagram of a display device according to an 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.
At present, a polarizer is disposed in an Organic Light Emitting Diode (OLED) display panel for reducing the influence of external ambient light on the display of the display panel and improving the display effect of the display panel. The frame district of current display module assembly is narrower, for example can be less than 0.3mm, when display module assembly assembles display device, sets up the camera in the side of being shaded in the display module assembly display area to be favorable to realizing display module assembly's narrow frame and nearly full screen display. Because be provided with the polaroid in the display module assembly, after the display module assembly is penetrated to the outside light of display module assembly, can pass through the inside rete reflection of display module assembly again behind the polaroid, lead to only partial light to penetrate into the camera for the light ratio is relatively poor when the camera is shot, and then leads to the poor problem of the shooting effect of display module assembly.
In view of the above technical problems, an embodiment of the present invention provides a display module. Fig. 1 is a schematic partial cross-sectional view of a display module according to an embodiment of the invention. As shown in fig. 1, the display module includes:
a display panel 110, the display panel 110 including a light-transmitting region 11;
a polarizer 120, wherein the polarizer 120 is disposed on the light-emitting side 111 of the display panel 110;
a light reflection unit 130, wherein the light reflection unit 130 is disposed on a side of the polarizer 120 away from the display panel 110, and vertical projections of the light reflection unit 130 and the light transmission region 11 in the first direction X overlap; the light reflection unit 130 is used for reflecting part of the external light emitted through the polarizer 120; the first direction X is a direction in which the display panel 110 points to the polarizer 120.
Specifically, the display panel 110 may include an array substrate and an encapsulation structure, and the encapsulation structure of the display panel 110 may include, for example, a frat encapsulation and a thin film encapsulation. The light transmittance of the light-transmitting region 11 of the display panel 110 is greater than that of other regions of the display panel 110. For example, the light-transmitting area 11 is a display area, and the density of the pixel circuits in the light-transmitting area 11 of the display panel 110 is less than that of the pixel circuits in other areas, so that the light transmittance of the light-transmitting area 11 of the display panel 110 is relatively high; alternatively, only the light emitting device is provided in the light-transmitting region 11, and the pixel circuit is provided in a region other than the light-transmitting region. The polarizer 120 is disposed on one side of the package structure of the display panel 110 away from the array substrate, external light forms circular polarized light after passing through the polarizer 120, and only part of light of the circular polarized light is reflected by the film layer inside the display panel 110 to enter the human eye, so that the influence of external ambient light on the display effect of the display module is avoided, and the display effect of the display module is improved. A light acquisition unit, such as a camera, may be further disposed on a side of the display panel 110 away from the polarizer 120 at a position corresponding to the light reflection unit 130 and the light-transmitting area 11 on the display panel, for implementing a shooting function of the display module. The light acquisition unit may be disposed on a backlight side 112 of the display panel 110, which is disposed opposite to the light exit side 111. The light-transmitting area 11 on the display panel 110 and the light-ray acquisition unit may be disposed opposite to each other along the first direction X, so that the light-transmitting area 11 provides a light source required for shooting for the light-ray acquisition unit, and the light quantity acquired by the light-ray acquisition unit is ensured. In addition, the light-transmitting area 11 can be arranged on one side of the frame area of the display panel 110, which is far away from the edge of the display panel 110, so that the display module can realize full-screen display.
The display panel 110 further includes a light emitting device disposed between the array substrate and the package structure, and the light emitting device can emit light according to a driving signal provided by the array substrate, thereby realizing display of the display module. The light generated by the light emitting device is emitted from the light emitting side of the display panel 110 through the encapsulation structure, and is emitted out of the display module through the polarizer 120 to enter human eyes. The light reflection unit 130 is disposed on a side of the polarizer 120 away from the display panel 110. When the light-ray obtaining unit operates, the external light reflected by the light-ray reflecting unit 130 is the external light emitted by the external object into the display panel 110. At this time, the external light is emitted to the display panel 110 through the transparent region 11 and the polarizer 120, and when the circular polarized light generated by the film layer inside the display panel 110 in the transparent region 11 reflecting the external light is reflected to the polarizer 120 again, the light is still circular polarized light. Light reflection unit 130 reflects the partial light in the circular polarization for the light that light reflection unit 130 reflects passes through the printing opacity district 11 of display panel 110 and at least part penetrates to the light acquisition unit, thereby has increased the light quantity that the light acquisition unit acquireed, when the light acquisition unit was shot, can improve the shooting effect that the light acquireed the unit, and then has improved display module's shooting function.
It should be noted that, when the light-transmitting area 11 is the display area and the light-acquiring unit operates, the light-emitting device in the light-transmitting area 11 does not emit light, so as to avoid reducing the light-emitting rate of the light-transmitting area 11.
It should be noted that, in other embodiments, when display module assembly has the fingerprint identification function, light acquisition unit can also be fingerprint sensor, and the light quantity that above-mentioned process can increase fingerprint sensor and acquire is favorable to improving display module assembly's fingerprint identification precision.
On the basis of the above technical solution, the vertical projection of the light reflection unit 130 in the first direction X covers the vertical projection of the light transmission region 11 in the first direction X.
Specifically, the light transmittance of the light-transmitting region 11 is relatively high, the light reflection unit 130 is at least partially opposite to the light-transmitting region 11 through the outside, and does not overlap with the region of the display panel 110 where the light emitting devices are disposed in the first direction X. When the external light is emitted to the light-transmitting area 11 of the display panel 110 through the polarizer 120, and the circular polarization light generated by the film layer inside the display panel 110 reflecting the external light is reflected to the polarizer 120 again, the light reflecting unit 130 may reflect a part of the light in the circular polarization light, so as to increase the light quantity acquired by the light acquiring unit, and meanwhile, the light reflecting unit 130 may prevent the light in the area where the light emitting device is disposed on the display panel 110 from being reflected as much as possible, so that the light emitting rate of the light emitting device in the display panel 110 may be ensured.
Illustratively, the light reflection unit 130 may include a polarization modulation wave plate. The polarization modulation wave plate can modulate circular polarization. Fig. 2 is a schematic view of an optical path of an external target object after light enters a display module according to an embodiment of the present invention. As shown in fig. 2, when the external light 1 is emitted to the light reflection unit 130, the external light 1 is completely emitted to the polarizer 120 through the light reflection unit 130, the light 1 passes through the polarizer 120 to form a circularly polarized light 2, the circularly polarized light 2 is emitted into the transparent region 11 of the display panel 110, and a part of the light can pass through the bar to reach the light acquisition unit below the display panel; the other part of the light is reflected to the polarizer 120 again by the circularly polarized light 2 reflected by the film layer inside the light-transmitting region 11, and the light emitted after the circularly polarized light 2 passes through the polarizer 120 is emitted to the light reflecting unit 130. The circular polarization includes levogyration circle polarisation 3 and dextrorotation circle polarisation 4, polarization modulation wave plate can make levogyration circle polarisation 3 pass through, and reflect dextrorotation circle polarisation 4, thereby realize the partial reflection to circle polarisation 2, make dextrorotation circle polarisation 4 reflect back display panel 110, and pass through display panel 110 light zone 11 and penetrate to light acquisition unit, thereby light quantity that light acquisition unit acquireed has been increased, when light acquisition unit took, can improve the shooting effect that light acquisition unit, and then improved display module's shooting function.
Fig. 3 is a schematic partial cross-sectional view of another display module according to an embodiment of the invention. As shown in fig. 3, the display module further includes a cover plate 140 and a light-transmitting and reflecting layer 150; the cover plate 140 is disposed on a side of the light reflection unit 130 away from the polarizer 120, the light transmitting reflection layer 150 is disposed between the light reflection unit 130 and the cover plate 140, and a perpendicular projection of the light transmitting reflection layer 150 and the light transmitting area 11 in the first direction X at least partially overlaps.
Specifically, the light transmitting and reflecting layer 150 has high light transmittance and has a reflecting function. The light-transmitting reflection layer 150 is disposed between the light reflection unit 130 and the cover plate 140, and overlaps the light-transmitting area 11 in the first direction X, and when the external light enters the display module through the cover plate 140, the external light is mostly incident into the polarizer 120 due to the high transmittance of the light-transmitting reflection layer 150, and passes through the polarizer 120 and the light-transmitting area 11 of the display panel 110 and then is incident into the light acquisition unit, so as to obtain the required amount of light when the light acquisition unit operates. In addition, when external light is emitted to the light reflection unit 130 through the polarizer 120, the light reflection unit 130 may reflect right-handed circular polarized light in circular polarized light emitted from the polarizer 120, and all the left-handed circular polarized light is emitted to the light transmission reflection layer 150 through the light reflection unit 130, and the light transmission reflection layer 150 reflects left-handed circular polarized light, and passes through the light reflection unit 130 again, all the left-handed circular polarized light is emitted into the polarizer 120 after passing through the light reflection unit 130, and the polarizer 120 converts the left-handed circular polarized light into right-handed circular polarized light, and emits the right-handed circular polarized light to the light acquisition unit through the display panel 110, so that the amount of light acquired by the light acquisition unit is further increased.
Optionally, the light-transmitting reflection layer 150 is vertically overlapped with the light-transmitting region 11 in the first direction X, and at this time, the light-transmitting reflection layer 150 can reflect more light, so as to further increase the light quantity acquired by the light acquisition unit.
It should be noted that the light in the display panel 110 can be repeatedly reflected and converted by the polarizer 120, the light reflection unit 130 and the light transmitting and reflecting layer 150, and can be repeatedly emitted to the light acquisition unit, so that the light in the display panel 110 is fully utilized, and the shooting function of the display module is further improved. The light in the display panel 110 may be light from the outside, which enters the display module through the transparent region 11.
In addition, when the polarizer 120 includes the first quarter-wave plate 121, the linear polarizer 122 and the second quarter-wave plate 123, which are sequentially disposed, the light reflected by the light transmitting and reflecting layer 150 can be converted into right-handed circularly polarized light after passing through the light reflecting unit 130 and the polarizer 120, so as to be transmitted to the light acquiring unit through the display panel 110, thereby increasing the amount of light acquired by the light acquiring unit.
On the basis of the above technical solution, the difference between the refractive index of the light transmitting and reflecting layer 150 and the refractive index of the cover plate 140 is greater than or equal to 0.5.
Specifically, the light emitted from the light reflection unit 130 is reflected at the light transmission reflection layer 150, which is beneficial to increase the amount of light obtained by the light obtaining unit. At the interface of the light transmitting and reflecting layer 150 and the cover plate 140, the light transmitting and reflecting layer 150 and the cover plate 140 have different refractive indexes, and thus reflection occurs. At this time, the difference between the refractive index of the light-transmitting reflection layer 150 and the refractive index of the cover plate 140 may be set to be greater than or equal to 0.5, so that the reflection of light at the interface between the light-transmitting reflection layer 150 and the cover plate 140 is relatively small, which is more beneficial to the reflection of light, and more light is reflected at the interface between the light-transmitting reflection layer 150 and the cover plate 140, thereby improving the light quantity reflected by the light-transmitting reflection layer 150, and further increasing the light quantity acquired by the light acquisition unit. For example, the cover plate 140 may be made of glass and have a refractive index of about 1.7, and the refractive index of the light-transmitting reflective layer 150 may be greater than or equal to 2.2, so as to facilitate the light-transmitting reflective layer 150 to reflect light.
Optionally, the light transmitting and reflecting layer 150 includes at least one of rare earth oxide, rare earth fluoride, and indium tin oxide.
In particular, rare earth oxides, rare earth fluorides, and indium tin oxide have high transparency, so that high transmittance of light can be achieved. And the refractive index has a larger difference with the refractive index of the cover plate 140, so that the reflective layer 150 can reflect light.
With reference to fig. 3, the display module further includes an optical adhesive layer 160, and the optical adhesive layer 160 is disposed between the light reflection unit 130 and the light transmission reflection layer 150.
Specifically, the material of the optical Adhesive layer 160 may be Optically Clear Adhesive (OCA) or Optically Clear Resin (OCR), and the optical Adhesive layer has viscosity and can fix the light reflection unit 130 and the light transmission reflection layer 150, and meanwhile, the optical Adhesive layer has high light transmittance, so that the optical Adhesive layer can be prevented from affecting the transmission of light.
It should be noted that, the light-transmitting reflection layer 150 is partially disposed on a side of the optical adhesive layer away from the light reflection unit 130, and when the optical adhesive layer is used to fix the light reflection unit 130 and the light-transmitting reflection layer 150, the optical adhesive layer can be used to fix the cover plate 140 and the light reflection unit 130 at the same time.
Fig. 4 is a schematic partial cross-sectional view of another display module according to an embodiment of the invention. As shown in fig. 4, the polarizer 120 includes a first quarter-wave plate 121, a linear polarizer 122, and a second quarter-wave plate 123 sequentially arranged along the first direction X; the first quarter-wave plate 121 is disposed between the linear polarizer 122 and the display panel 110; the second quarter-wave plate 123 is multiplexed as a protective film of the polarizer 120.
Specifically, when the both sides of online polaroid 122 all are provided with the quarter wave plate, when the light that display panel 110 jetted out passes through polaroid 120, convert into circular polarized light through first quarter wave plate 121 earlier, then convert into linear polarized light through line polaroid 122, convert into circular polarized light again through second quarter wave plate 123 at last, thereby make polaroid 120 output circular polarized light, and through the dextrorotation circular polarized light in the reflection circular polarized light of reflection unit 130, the shooting effect of light acquisition unit has been improved, and then the shooting function of display module assembly has been improved. The polarizer 120 is generally provided with a protective film for protecting the polarizer 120. The second quarter-wave plate 123 is reused as the protective film of the polarizer 120, so that the number of the films of the polarizer 120 can be reduced on the basis of ensuring that the circular polarized light is emitted from the polarizer 120, the thickness and the process steps of the polarizer 120 can be reduced, and the production cost of the polarizer 120 can be reduced. Illustratively, the material of the second quarter-wave plate 123 may be Cyclic Olefin Polymer (COP), which has good optical characteristics, and good mechanical properties, temperature resistance and weather resistance, so that the quarter-wave plate may be formed through a process and may also serve as a protective film.
Fig. 5 is a schematic partial cross-sectional view of another display module according to an embodiment of the invention. As shown in fig. 5, the display module further includes a supporting structure 170, and the display panel 110 further includes a backlight side 112 opposite to the light-emitting side 111; the support structure 170 is disposed on the backlight side 112 of the display panel 110; the supporting structure 170 includes a hollow structure 171, and a vertical projection of the hollow structure 171 and the light-transmitting region 11 in the first direction X at least partially overlaps.
In particular, the support structure 170 serves to support the display panel 110. Illustratively, the support structure 170 may comprise foam. The light transmittance ratio of the supporting structure 170 is lower, when the supporting structure 170 is disposed on the backlight side 112 of the display panel 110, the hollow structure 171 can be disposed at a position opposite to the light-transmitting area 11, so that the light quantity emitted to the light acquiring unit through the supporting structure 170 is increased, the light quantity acquired by the light acquiring unit is further increased, when the light acquiring unit shoots, the shooting effect of the light acquiring unit can be improved, and the shooting function of the display module is further improved.
Preferably, the hollow structures 171 and the light-transmitting area 11 are overlapped in vertical projection in the first direction X, and at this time, all the light rays vertically exiting the display panel 110 can be emitted to the light ray obtaining unit through the hollow structures 171, so that the light quantity obtained by the light ray obtaining unit can be increased to the maximum. Meanwhile, the hollow structures 171 on the supporting structure 170 can be reduced as much as possible, so as to ensure the supporting effect of the supporting structure 170 on the display panel 110.
The embodiment of the invention also provides a display device. Fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 6, the display device includes a light acquisition unit 200 and a display module according to any embodiment of the present invention; the light acquiring unit 200 is disposed on a side of the display panel 110 away from the polarizer 120; along the first direction X, the orthographic projection of the light-transmitting region 11 overlaps with the orthographic projection of the light acquisition unit 200.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. 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 by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A display module, comprising:
a display panel including a light-transmitting region;
the polaroid is arranged on the light emitting side of the display panel;
the light reflection unit is arranged on one side, away from the display panel, of the polarizer, and the light reflection unit and the light transmission area are overlapped in vertical projection in the first direction; the light reflection unit is used for reflecting part of external light emitted by the polaroid; the first direction is a direction in which the display panel points to the polarizer.
2. The display module according to claim 1, wherein a vertical projection of the light reflection unit in the first direction covers a vertical projection of the transmissive region in the first direction.
3. The display module according to claim 1 or 2, wherein the light reflection unit comprises a polarization modulation wave plate.
4. The display module of claim 1, further comprising a cover plate and a light transmissive and reflective layer; the cover plate is arranged on one side, far away from the polaroid, of the light reflection unit, the light transmitting reflection layer is arranged between the light reflection unit and the cover plate, and at least part of the vertical projection of the light transmitting reflection layer and the light transmitting area in the first direction is overlapped.
5. The display module of claim 4, wherein the difference between the refractive index of the light-transmitting and reflecting layer and the refractive index of the cover plate is greater than or equal to 0.5.
6. The display module of claim 5, wherein the light transmissive and reflective layer comprises at least one of a rare earth oxide, a rare earth fluoride, and indium tin oxide.
7. The display module according to claim 4, further comprising an optical adhesive layer disposed between the light reflection unit and the light transmissive reflection layer.
8. The display module according to claim 1, wherein along the first direction, the polarizer comprises a first quarter-wave plate, a linear polarizer and a second quarter-wave plate arranged in sequence; the first quarter wave plate is arranged between the linear polarizer and the display panel;
and the second quarter-wave plate is multiplexed as the protective film of the polarizer.
9. The display module of claim 1, further comprising a support structure, wherein the display panel further comprises a backlight side disposed opposite the light exit side; the support structure is arranged on the backlight side of the display panel;
the supporting structure comprises a hollow structure, and the hollow structure and the perpendicular projection of the light transmission area in the first direction are at least partially overlapped.
10. A display device, comprising a light acquisition unit and the display module of any one of claims 1-9;
the light acquisition unit is arranged on one side of the display panel, which is far away from the polaroid; along the first direction, the orthographic projection of the light-transmitting area is overlapped with the orthographic projection of the light acquisition unit.
CN202010879939.5A 2020-08-27 2020-08-27 Display module and display device Active CN112017542B (en)

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CN114200712A (en) * 2021-12-31 2022-03-18 厦门天马微电子有限公司 Display module and display device
CN114815035A (en) * 2022-05-11 2022-07-29 武汉华星光电技术有限公司 Display panel and display device

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