CN115394191A - Display module and display device - Google Patents

Display module and display device Download PDF

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Publication number
CN115394191A
CN115394191A CN202211008839.0A CN202211008839A CN115394191A CN 115394191 A CN115394191 A CN 115394191A CN 202211008839 A CN202211008839 A CN 202211008839A CN 115394191 A CN115394191 A CN 115394191A
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China
Prior art keywords
circuit board
display panel
display
section
light
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Granted
Application number
CN202211008839.0A
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Chinese (zh)
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CN115394191B (en
Inventor
包征
杨皓天
王明强
张家祥
方远�
陈功
贺雪英
王畅
傅晓亮
张斌
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Priority to CN202211008839.0A priority Critical patent/CN115394191B/en
Publication of CN115394191A publication Critical patent/CN115394191A/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

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application discloses display module assembly and display device relates to and shows technical field, can improve sensitivity and the precision that shows brightness control. A display module, comprising: a display panel; the optical sensor is arranged on one side of the display panel, which is far away from the display side; the reflecting plate is arranged on one side, away from the display side, of the display panel and used for reflecting part of external light penetrating through the display panel to the optical sensor.

Description

Display module and display device
Technical Field
The application relates to the technical field of display, in particular to a display module and a display device.
Background
At present, more and more display device's the luminance that shows can be along with external environment's light change automatic adjustment, specifically can gather external environment's luminance through light sensor, carries out the analysis calculation through the luminance of the external environment of treater to gathering, shows the regulation of luminance through drive chip control.
However, as the display device has more and more integrated functions, the light sensor may be affected to collect the brightness of the external environment, and the sensitivity and precision of the display brightness adjustment of the display device may be reduced.
Disclosure of Invention
The embodiment of the application provides a display module assembly and display device, can improve sensitivity and the precision that shows the brightness control.
In a first aspect of the embodiments of the present application, a display module is provided, which includes:
a display panel;
the optical sensor is arranged on one side of the display panel, which is far away from the display side;
the reflecting plate is arranged on one side, away from the display side, of the display panel and used for reflecting part of external light penetrating through the display panel to the optical sensor.
In some embodiments, the display panel includes a photosensitive area, and the orthographic projections of the photosensor and the reflector plate on the display panel both fall into the photosensitive area;
the reflecting plate is used for reflecting the external light transmitted from the photosensitive area to the optical sensor.
In some embodiments, at least one of the reflective plates is disposed on a peripheral side of the light sensor, and a reflective surface is disposed on a side of the reflective plate close to the light sensor.
In some embodiments, an orthographic projection of at least one of the reflective plates on the display panel is a closed loop.
In some embodiments, the baffle plate comprises an integral annular baffle.
In some embodiments, the display module further includes:
the driving circuit board is arranged on one side of the display panel, which is far away from the display side, the reflecting plate is fixedly connected with the driving circuit board, the optical sensor is electrically connected with the driving circuit board, and the driving circuit board is used for transmitting the light brightness data sensed by the optical sensor to the control main board;
the display panel comprises a flexible circuit board, the flexible circuit board is electrically connected with the driving circuit board, and the flexible circuit board is arranged in the photosensitive area and is provided with a hollow part.
In some embodiments, the display module further comprises:
the drive circuit board is electrically connected with the flexible circuit board through the connecting circuit boards, and the connecting circuit boards are used for supporting the space between the drive circuit board and the display panel so as to accommodate the optical sensor and the reflecting plate.
In some embodiments, an acute angle between the reflection plate and a plane of the display panel is greater than or equal to 45 °.
In some embodiments, the reflector includes at least two segments, and each segment has a different angle with respect to the plane of the display panel.
In some embodiments, the reflective plate includes a first section and a second section, the first section is fixedly connected with the driving circuit board, and the second section is connected with the first section;
the acute angle of the included angle between the second segment and the plane where the display panel is located is greater than or equal to 45 degrees.
In some embodiments, the reflective plate includes a first section, a second section and a third section, the first section is fixedly connected to the driving circuit board, and the second section is disposed between the first section and the third section;
the acute angle of the included angle between the second segment and the plane of the display panel is greater than or equal to 45 degrees.
In some embodiments, an angle between the first segment and a plane of the display panel is 90 °, and an angle between the third segment and the plane of the display panel is 90 °.
In some embodiments, the distance from the connection point of the first segment and the second segment to the driving circuit board is greater than the distance from the light sensing end of the light sensor to the driving circuit board.
In some embodiments, the length of each segment of the reflector plate is the same.
In some embodiments, the shortest distance between the reflective plate and the light sensor ranges from 0.3mm to 1mm.
In some embodiments, the reflective plate comprises a body plate having a thickness in a range of 0.15mm to 0.4mm;
the surface of one side, close to the optical sensor, of the main body board is provided with a reflecting surface, the reflecting surface is provided with a silver film, and the thickness range of the silver film is 5-10 micrometers; and/or the presence of a gas in the atmosphere,
the reflecting plate is connected with the driving circuit board in a welding or bonding mode.
In a second aspect of the embodiments of the present application, there is provided a display device including:
the display module according to the first aspect.
The display module assembly that this application embodiment provided sets up at least one reflecting plate, and at least one reflecting plate sets up in the one side that display panel deviates from the demonstration side, and the reflecting plate is used for reflecting to light sensor through display panel's partial external light. The second light of the external environment light at the display side, which penetrates through the display panel, is irradiated on the surface of the reflecting plate, and the second light can reach the optical sensor through the reflection of the reflecting plate so as to be received by the optical sensor. The reflecting plate can increase the received light quantity of the optical sensor for the reflection of the second light, can compensate the loss of the low transmittance of the functional film layer of the display panel for the external environment light, improves the accuracy and the sensitivity of the optical sensor for sensing the external environment light brightness, and further improves the accuracy and the sensitivity of the display module for adjusting the display brightness of the display panel based on the external environment light brightness.
Drawings
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another display module provided in an embodiment of the present application;
fig. 3 is a diagram illustrating a positional relationship between a reflective plate and a light sensor according to an embodiment of the present disclosure;
FIG. 4 is a diagram illustrating a positional relationship between a reflective plate and a photo sensor according to an embodiment of the present disclosure;
FIG. 5 is a diagram illustrating a positional relationship between a reflector and a light sensor according to an embodiment of the present disclosure;
FIG. 6 is a diagram illustrating a relationship between a reflector and a light sensor according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of another display module provided in the embodiment of the present application;
fig. 8 is a schematic structural diagram of a driving circuit board according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of another display module according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations on the technical solutions of the embodiments of the present specification, and the technical features in the embodiments and examples of the present specification may be combined with each other without conflict.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes the case of two or more.
At present, more and more display device's the luminance that shows can change automatic adjustment along with external environment's light, specifically can gather external environment's luminance through light sensor, carries out the analysis and calculation through the luminance of the external environment of treater to gathering, shows the regulation of luminance through drive chip control. However, as the display device has more and more integrated functions, the light sensor may be affected to collect the brightness of the external environment, and the sensitivity and precision of the display brightness adjustment of the display device may be reduced.
In view of this, embodiments of the present application provide a display module and a display device, which can improve the sensitivity and the precision of the display brightness adjustment.
In a first aspect of the embodiments of the present application, a display module is provided, and fig. 1 is a schematic structural diagram of the display module provided in the embodiments of the present application. As shown in fig. 1, an embodiment of the present application provides a display module, including: a display panel 100, a light sensor 200, and at least one reflection plate 300. The light sensor 200 is disposed on a side of the display panel 100 away from the display side 101, and the light sensor 200 is configured to receive light from outside of the display side 101 transmitted by the display panel 100 and obtain light brightness data of an environment outside of the display side 101 according to an amount of the received light.
It should be noted that, depending on the area of the sensing end of the optical sensor 200, the optical sensor 200 can only receive the light transmitted by a local area of the display panel 100. For example, the first light L0 emitted into the space enclosed by the dotted line shown in fig. 1 may be received by the light sensor 200. Generally, in order to integrate more functions associated with the display, more functional films, such as a touch layer, a filter layer, a polarizer, or the like, are integrated in the display panel. In addition, to achieve a larger screen ratio, the pixels cover more area of the display panel. The luminousness that then can lead to display panel descends for the light quantity that the light sensor received receives the influence, finally leads to the luminance data that the light sensor sensing can not reflect the external environment's of real demonstration side luminance, then display module assembly is lower to the detection precision of external environment's luminance, and then makes display module assembly adjust display panel's the precision and the sensitivity of display luminance based on external environment's luminance lower.
To solve the above problem, the display module according to the embodiment of the present application is provided with at least one reflective plate 300, the at least one reflective plate 300 is disposed on a side of the display panel 100 departing from the display side 101, and the reflective plate 300 is used for reflecting a part of external light passing through the display panel 100 to the optical sensor. For example, as shown in fig. 1, the reflection plate 300 may be a unitary structure, or may be at least two separate baffles, and the embodiments of the present application are not particularly limited. The second light L1 of the ambient light on the display side 101 transmitted through the display panel 100 is irradiated on the surface of the reflection plate 300, and the second light L1 can reach the light sensor 200 through the reflection of the reflection plate 300 to be received by the light sensor 200. Reflecting plate 300 can increase the light quantity that light sensor 200 received to the reflection of second light L1, can compensate because display panel 100's function rete is to the loss of the low transmissivity of external environment light, improves light sensor 200 and to external environment light luminance sensing precision and sensitivity, further improves precision and the sensitivity that display module assembly adjusted display panel's display luminance based on external environment's luminance.
The display module assembly that this application embodiment provided sets up at least one reflecting plate 300, and at least one reflecting plate 300 sets up in the one side that display panel 100 deviates from display side 101, and reflecting plate 300 is used for reflecting to the light sensor through the partial external light of display panel 100. The second light L1 of the external environment light of the display side 101 transmitted through the display panel 100 is irradiated on the surface of the reflection plate 300, and the second light L1 can reach the light sensor 200 through the reflection of the reflection plate 300 to be received by the light sensor 200. The reflecting plate 300 can increase the light quantity received by the light sensor 200 due to the reflection of the second light L1, and can compensate the loss of the low transmittance of the functional film layer of the display panel 100 to the external environment light, so that the accuracy and the sensitivity of the light sensor 200 to the external environment light brightness sensing are improved, and the accuracy and the sensitivity of the display module for adjusting the display brightness of the display panel based on the external environment light brightness are further improved.
In some embodiments, the display panel includes a photosensitive area, and the orthographic projection of the light sensor and the reflector on the display panel falls into the photosensitive area; the reflecting plate is used for reflecting the external light transmitted from the photosensitive area to the light sensor.
For example, fig. 2 is a schematic structural diagram of another display module provided in the embodiment of the present application. As shown in fig. 2, the second light L1 incident on the reflective plate 300 is an ambient light transmitted from the photosensitive area 102 of the display panel 100. For example, the light sensing region 102 may be defined according to a setting area of the reflective plate 300, and may implement a sensing compensation of the light brightness to a limited extent, so as to prevent excessive light from being reflected to the light sensor 200, such that the light brightness sensed by the light sensor 200 exceeds an actual light brightness of the external environment.
In some embodiments, referring to fig. 2, at least one reflective plate 300 is disposed on the peripheral side of the optical sensor 200, and a reflective surface 301 is disposed on a side of the reflective plate 300 close to the optical sensor 200. The reflective plate 300 may partially surround the light sensor 200, and the reflective plate 300 may completely surround the light sensor 200, and may be disposed according to the compensation requirement of the actual reflected light brightness. For example, the light reflectivity of the reflective plate 300 to the light-sensing region 102 may be equivalent to the loss of the light brightness of the display panel 100 to the transmitted light, and the sensing accuracy and the sensitivity of the light sensor 200 to the light brightness of the external environment may be better ensured.
In some embodiments, the orthographic projection of the at least one reflective plate 300 on the display panel 100 is a closed ring shape. The reflective plate 300 can reflect the peripheral light of the light sensor 200 at various angles, so as to sufficiently compensate the brightness of the light sensed by the light sensor 200.
In some embodiments, the reflective plate 300 comprises an integral annular baffle. The ring shape may be a circular ring, an elliptical ring, a polygonal ring, or the like, and the embodiment of the present application is not particularly limited. The integrated annular baffle structure is easy to realize and easy to assemble.
For example, the reflecting surface 301 of the reflecting plate 300 may be a curved surface, such as a cambered surface, and is concave towards the direction away from the light sensor 200, which may act as a light gathering surface.
Fig. 3 is a diagram illustrating a positional relationship between a reflection plate and a light sensor according to an embodiment of the present disclosure. As shown in fig. 3, the reflective plate 300 is a circular ring shaped baffle, and the reflective surface 301 is a curved surface.
For example, fig. 4 is a diagram of a positional relationship between another reflection plate and an optical sensor provided in an embodiment of the present application. As shown in fig. 4, the reflection plate 300 is a rectangular ring baffle.
For example, fig. 5 is a diagram of a positional relationship between a reflective plate and a light sensor according to an embodiment of the present application. As shown in fig. 5, the reflective plate 300 half-surrounds the light sensor 200.
For example, fig. 6 is a diagram of a positional relationship between a reflective plate and a light sensor according to an embodiment of the present application. As shown in fig. 6, the number of the reflective plates 300 is plural, and the space surrounded by the plural reflective plates 300 can accommodate the optical sensor 200.
It should be noted that the shape and number of the reflective plates may be set according to the requirement of specific reflected light quantity, and the embodiment of the present application is not limited in particular.
In some embodiments, the display module provided in the embodiments of the present application further includes: the driving circuit board is arranged on one side of the display panel, which deviates from the display side, the reflecting plate is fixedly connected with the driving circuit board, and the optical sensor is electrically connected with the driving circuit board. Display panel includes the flexible circuit board, and the flexible circuit board is connected with the drive circuit board electricity, and the flexible circuit board has the fretwork in the sensitization district, and the fretwork can be used for holding reflecting plate and light sensor, avoids the flexible circuit board to shelter from the sensing of external environment's light. The driving circuit board is electrically connected with the flexible circuit board through the connecting circuit board, and the connecting circuit board is used for supporting a space between the driving circuit board and the display panel so as to accommodate the optical sensor and the reflecting plate.
Exemplarily, the driver circuit board is used for transmitting the luminance data that the light sensor sensing arrived to the control mainboard, the controller or the treater of mainboard are to receiving luminance data and being carried out the analysis, can obtain display panel's brightness control data, convert brightness control data into display panel's drive adjustment signal and feed back to the driver circuit board, the driver circuit board is with drive adjustment signal transmission to flexible circuit board through connecting circuit board again, the flexible circuit board can be according to the regulation of drive adjustment signal drive display panel's display screen luminance. The flexible circuit board may be electrically connected with a driving chip of the display panel, and the driving chip drives display adjustment of the display panel based on the driving adjustment signal.
For example, fig. 7 is a schematic structural diagram of another display module provided in the embodiment of the present application. As shown in fig. 7, the display panel 100 includes a flexible circuit board 110, a heat dissipation layer 120, a display substrate 130, a polarizer 140, an optical adhesive 150, and a cover plate 160. The flexible circuit board 110 can be bound with the binding region of the display substrate 130, the binding pins of the display substrate 130 are usually arranged on one side of the display side, the flexible circuit board 110 can be bent to one side of the display substrate 130 departing from the display side 101, the frame of the display module can be reduced, the bending position can be the bending position of the flexible circuit board 110, the bending position can also be the binding region of the display substrate, and then the display substrate 130 can be a flexible substrate. The heat dissipation layer 120 can dissipate heat generated on the display substrate 130 and the flexible circuit board 110, and thus, the heat resistance of the display module is improved, and the reliability of the display module is further improved. The display substrate 130 may be a display substrate of any display mode, such as a liquid crystal display substrate, an organic light emitting display substrate, or a laser display substrate, which is not particularly limited in the embodiments of the present application. The display substrate 130 may be integrated with a touch layer, and the touch layer may include one touch functional layer or more than two touch functional layers, which is not limited in this embodiment. The polarizer 140 may function as a filter for improving a display effect. The optical adhesive 150 is used to bond the polarizer 140 and the cover plate 160, the light transmittance of the optical adhesive 150 and the cover plate 160 is more than 99%, and the cover plate 160 can be used to protect the display substrate 130 and other film layers.
It should be noted that the display panel provided in the embodiments of the present application may be a flexible display panel, and the present application is not limited in particular.
Illustratively, referring to fig. 7, the connection circuit board 500 is used to electrically connect the driving circuit board 400 and the flexible circuit board 110. The connection circuit board 500 may be electrically connected to the driving circuit board 400 through the first soldering pins 510, the connection circuit board 500 may be electrically connected to the flexible circuit board 110 through the second soldering pins 520, and the connection circuit board 500 may be soldered to corresponding pads of the driving circuit board 400 in a manner of punching. The optical sensor 200 may be electrically connected to the driving circuit board 400 through the third soldering pins 201, and the reflection plate 300 may be fixedly connected to the driving circuit board through the connection structure 302. The exemplary connection structure 302 may be a soldering structure for soldering a pin and a pad, and may also be an adhesive, and the reflection plate 300 may be soldered or adhesively connected to the driving circuit board 400, which is not particularly limited in the embodiments of the present application. The connection circuit board 500 may be a hard circuit board, the connection circuit board 500 may support a space between the driving circuit board and the display panel, and may provide a sufficient accommodation space for the optical sensor 200 and the reflection plate 300, so that the reflection plate 300 reflects sufficient light onto the optical sensor 200, thereby ensuring that the light intensity sensed by the optical sensor 200 is closer to the light intensity of the external environment, and improving the light intensity sensing accuracy and sensitivity of the external environment.
For example, fig. 8 is a schematic structural diagram of a driving circuit board provided in an embodiment of the present application. As shown in fig. 8, the connection circuit board 500 surrounds the reflection plate 300 and the optical sensor 200, and the number and arrangement of the first soldering pins 510 and the second soldering pins 520 shown in fig. 8 are only illustrative and are not intended to be a specific limitation of the embodiment of the present application.
It should be noted that the first bonding pin 510, the second bonding pin 520, the third bonding pin 201, and the connection structure 302 are provided with bonding pads at corresponding positions for implementing bonding connection.
In some embodiments, the acute angle between the reflection plate 300 and the plane of the display panel 100 is greater than or equal to 45 °. It can be ensured that most of the light irradiated on the reflecting surface 301 of the reflecting plate 300 is reflected to the optical sensor 200.
For example, referring to fig. 1 and 2, the included angle between the reflective plate 300 and the plane of the display panel 100 is unique, and the reflective plate 300 has a simple structure and is easy to manufacture and assemble.
In some embodiments, the reflective plate 300 includes at least two segments, and each segment has a different angle with respect to the plane of the display panel. Different included angles can play a role in different reflection effects or gathering light rays to different degrees.
Exemplarily, referring to fig. 7, the reflective plate 300 includes a first section 310 and a second section 320, the first section 310 is fixedly connected to the driving circuit board 400, and the second section 320 is connected to the first section 310; the acute angle between the second segment 320 and the plane of the display panel is greater than or equal to 45 deg. The second section 320 may serve as a section of the reflective plate 300 that mainly functions as a reflection, and the first section 310 may function as a supporting connection.
In some embodiments, fig. 9 is a schematic structural diagram of another display module provided in an example of the present application. As shown in fig. 9, the reflective plate 300 includes a first segment 310, a second segment 320 and a third segment 330, the first segment 310 is fixedly connected to the driving circuit board 400, and the second segment 320 is disposed between the first segment 310 and the third segment 330; the acute angle between the second segment 320 and the plane of the display panel is greater than or equal to 45 °. The first segment 310 forms an angle of 90 ° with the plane of the display panel, and the third segment 330 forms an angle of 90 ° with the plane of the display panel. The edge between the optical adhesive 150 and the cover plate 160 is provided with a light shielding ink 170 for shielding edge light leakage.
For example, referring to fig. 9, taking an angle α =60 ° between the second segment 320 and a plane of the display panel as an example, an angle formed by the light transmitted through the display panel and a reflection surface of the second segment reflector is 30 °, a reflected reflection incident angle α 1=60 °, and according to the principle of specular reflection, the reflection angle is 60 °, and the light in the light sensing region 102 may be indirectly reflected to a light sensing end of the light sensor 200 through the reflector 300 to be sensed.
In some embodiments, referring to fig. 3, the distance from the connection of the first segment 310 and the second segment 320 to the driving circuit board 400 is greater than the distance from the photosensitive end of the light sensor 200 to the driving circuit board 400. The light-sensitive end of the light sensor 200 is a surface close to one side of the display panel, and the distance from the joint of the first section 310 and the second section 320 to the driving circuit board 400 is greater than the distance from the light-sensitive end of the light sensor 200 to the driving circuit board 400, so that the whole section of the second section 320 can be ensured to reflect effective light, that is, the reflected light can irradiate the light-sensitive end of the light sensor 200. The first and third segments 310 and 330 are disposed perpendicular to the display panel and may function to trap light.
In some embodiments, the length of each section of the reflecting plate is the same, so that the reflecting plate is easy to realize and the light is uniformly reflected.
In some embodiments, the shortest distance between the reflective plate 300 and the light sensor 200 ranges from 0.3mm to 1mm. Illustratively, the connection structure 302 is connected to the first segment 310 at a distance in the range of 0.3mm to 1mm from the optical sensor 200, so as to ensure that the electrical connection of the optical sensor 200 is not affected.
In some embodiments, the reflective plate comprises a body plate having a thickness in a range of 0.15mm to 0.4mm; the main body board is provided with a reflecting surface on one side surface close to the optical sensor, the reflecting surface is provided with a silver film, and the thickness of the silver film ranges from 5 micrometers to 10 micrometers. The main body plate may be stainless steel or cupronickel, and the embodiment of the present application is not particularly limited. Silver is the preferred material to achieve specular reflection and is easy to implement.
It should be noted that the photosensitive region 102 may be disposed in the middle of the display panel or at the edge, and the embodiment of the present invention is not limited in particular.
In a second aspect of the embodiments of the present application, a display device is provided, and fig. 10 is a schematic structural diagram of a display device provided in an embodiment of the present application. As shown in fig. 10, a display device provided in an embodiment of the present application includes: the display module 1000 according to the first aspect.
Exemplarily, display module's drive circuit board transmits the luminance data that light sensor sensing arrived to the control mainboard, the mainboard can regard as the bearing module of display device's controller, the controller on the mainboard carries out the analysis to receiving luminance data, can obtain display panel's luminance regulation data, be display panel's drive adjustment signal with luminance regulation data conversion and feed back to drive circuit board, drive circuit board transmits drive adjustment signal to flexible circuit board through connecting circuit board again, flexible circuit board can be according to the regulation of drive adjustment signal drive display panel's display screen luminance. The flexible circuit board may be electrically connected with a driving chip of the display panel, and the driving chip drives display adjustment of the display panel based on the driving adjustment signal.
Referring to fig. 1, in the display device provided in the embodiment of the present application, the display module is provided with at least one reflective plate 300, the at least one reflective plate 300 is disposed on a side of the display panel 100 away from the display side 101, and the reflective plate 300 is used for reflecting a part of external light passing through the display panel 100 to the optical sensor. The second light L1 of the ambient light on the display side 101 transmitted through the display panel 100 is irradiated on the surface of the reflection plate 300, and the second light L1 can reach the light sensor 200 through the reflection of the reflection plate 300 to be received by the light sensor 200. The reflecting plate 300 can increase the light quantity received by the light sensor 200 due to the reflection of the second light L1, and can compensate the loss of the low transmittance of the functional film layer of the display panel 100 to the external environment light, so that the accuracy and the sensitivity of the light sensor 200 to the external environment light brightness sensing are improved, and the accuracy and the sensitivity of the display module for adjusting the display brightness of the display panel based on the external environment light brightness are further improved.
It should be noted that the display device may be a smart phone, a tablet computer, a notebook computer, a television, or other displays, and the embodiments of the present application are not limited specifically.
It should be noted that, in the foregoing embodiments, the description of each embodiment has an emphasis, and reference may be made to the related description of other embodiments for a part that is not described in detail in a certain embodiment.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
While preferred embodiments of the present specification have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all changes and modifications that fall within the scope of the specification.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present specification without departing from the spirit and scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims of the present specification and their equivalents, the specification is intended to include such modifications and variations.

Claims (16)

1. A display module, comprising:
a display panel;
the optical sensor is arranged on one side of the display panel, which is deviated from the display side;
the reflecting plate is arranged on one side, departing from the display side, of the display panel and used for reflecting part of external light penetrating through the display panel to the optical sensor.
2. The display module of claim 1,
the display panel comprises a light sensing area, and the orthographic projections of the optical sensor and the reflecting plate on the display panel fall into the light sensing area;
the reflecting plate is used for reflecting the external light transmitted from the photosensitive area to the optical sensor.
3. The display module of claim 1,
at least one the reflecting plate set up in light sensor's week side, the reflecting plate is close to light sensor's one side is provided with the plane of reflection.
4. The display module of claim 3,
the orthographic projection of at least one reflecting plate on the display panel is in a closed ring shape.
5. The display module according to claim 4,
the baffle plate includes an integral annular baffle.
6. The display module according to any one of claims 1-5, further comprising:
the driving circuit board is arranged on one side, away from the display side, of the display panel, the reflecting plate is fixedly connected with the driving circuit board, the optical sensor is electrically connected with the driving circuit board, and the driving circuit board is used for transmitting the light brightness data sensed by the optical sensor to the control main board;
the display panel comprises a flexible circuit board, the flexible circuit board is electrically connected with the driving circuit board, and the flexible circuit board is arranged in the photosensitive area and is provided with a hollow part.
7. The display module of claim 6, further comprising:
the drive circuit board is electrically connected with the flexible circuit board through the connecting circuit board, and the connecting circuit board is used for supporting a space between the drive circuit board and the display panel so as to accommodate the optical sensor and the reflecting plate.
8. The display module of claim 6,
the acute angle of the included angle between the reflecting plate and the plane where the display panel is located is greater than or equal to 45 degrees.
9. The display module of claim 6,
the reflecting plate comprises at least two sections, and the included angle between the reflecting plate and the plane where the display panel is located is different.
10. The display module of claim 9,
the reflecting plate comprises a first section and a second section, the first section is fixedly connected with the driving circuit board, and the second section is connected with the first section;
the acute angle of the included angle between the second segment and the plane of the display panel is greater than or equal to 45 degrees.
11. The display module of claim 9,
the reflecting plate comprises a first section, a second section and a third section, the first section is fixedly connected with the driving circuit board, and the second section is arranged between the first section and the third section;
the acute angle of the included angle between the second segment and the plane of the display panel is greater than or equal to 45 degrees.
12. The display module of claim 11,
the included angle between the first section and the plane of the display panel is 90 degrees, and the included angle between the third section and the plane of the display panel is 90 degrees.
13. The display module of claim 10,
the distance from the joint of the first section and the second section to the driving circuit board is greater than the distance from the photosensitive end of the optical sensor to the driving circuit board.
14. The display module of claim 1,
the shortest distance range of the reflecting plate and the optical sensor is 0.3mm to 1mm.
15. The display module of claim 6,
the reflecting plate comprises a main body plate, and the thickness of the main body plate ranges from 0.15mm to 0.4mm;
a reflection surface is arranged on the surface of one side, close to the optical sensor, of the main body plate, a silver film is arranged on the reflection surface, and the thickness range of the silver film is 5-10 micrometers; and/or the presence of a gas in the atmosphere,
the reflecting plate is connected with the driving circuit board in a welding or bonding mode.
16. A display device, comprising:
a display module according to any one of claims 1-15.
CN202211008839.0A 2022-08-22 2022-08-22 Display module and display device Active CN115394191B (en)

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CN112560794A (en) * 2020-12-29 2021-03-26 厦门天马微电子有限公司 Display module and display device
CN113380860A (en) * 2021-05-24 2021-09-10 昆山国显光电有限公司 Display device
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WO2020237436A1 (en) * 2019-05-24 2020-12-03 深圳市柔宇科技有限公司 Display panel and electronic apparatus
WO2020258533A1 (en) * 2019-06-24 2020-12-30 南昌欧菲生物识别技术有限公司 Photosensitive module, display apparatus, and electronic device
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