CN115394191B - Display module and display device - Google Patents

Display module and display device Download PDF

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Publication number
CN115394191B
CN115394191B CN202211008839.0A CN202211008839A CN115394191B CN 115394191 B CN115394191 B CN 115394191B CN 202211008839 A CN202211008839 A CN 202211008839A CN 115394191 B CN115394191 B CN 115394191B
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Prior art keywords
circuit board
display
display module
display panel
section
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CN202211008839.0A
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CN115394191A (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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  • Physics & Mathematics (AREA)
  • 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 a display module and a display device, relates to the technical field of display, and can improve the sensitivity and the precision of display brightness adjustment. A display module, comprising: a display panel; the optical sensor is arranged on one side of the display panel, which is away from the display side; at least one reflecting plate is arranged on one side of the display panel, which is away from the display side, and the reflecting plate is used for reflecting part of external light transmitted through the display panel to the light sensor.

Description

Display module and display device
Technical Field
The present application relates to the field of display technologies, and in particular, to a display module and a display device.
Background
At present, more and more display brightness of the display device can be automatically adjusted along with the light change of the external environment, specifically, the light brightness of the external environment can be collected through the light sensor, the collected light brightness of the external environment is analyzed and calculated through the processor, and the adjustment of the display brightness is controlled through the driving chip.
However, as the integrated functions of the display device are increased, the light sensor may be affected to collect the brightness of the external environment, so as to reduce the sensitivity and accuracy of the display brightness adjustment of the display device.
Disclosure of Invention
The embodiment of the application provides a display module and a display device, which can improve the sensitivity and the precision of display brightness adjustment.
In a first aspect of an embodiment of the present application, a display module is provided, including:
a display panel;
the optical sensor is arranged on one side of the display panel, which is away from the display side;
at least one reflecting plate is arranged on one side of the display panel, which is away from the display side, and the reflecting plate is used for reflecting part of external light transmitted through the display panel to the light sensor.
In some embodiments, the display panel includes a light-sensing region, and the orthographic projections of the light sensor and the reflecting plate on the display panel fall into the light-sensing region;
the reflecting plate is used for reflecting the external light transmitted from the photosensitive area to the light sensor.
In some embodiments, at least one of the reflection plates is disposed at a peripheral side of the light sensor, and a reflection surface is disposed at a side of the reflection plate close to the light sensor.
In some embodiments, at least one of the reflection plates is projected in a closed ring shape on the display panel.
In some embodiments, the reflective plate comprises an integral annular baffle.
In some embodiments, the display module further includes:
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 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 provided with a hollowed-out part in the photosensitive area.
In some embodiments, the display module further includes:
the drive circuit board is electrically connected with the flexible circuit board through the connection circuit board, and the connection circuit board is used for supporting a space between the drive circuit board and the display panel so as to accommodate the light sensor and the reflecting plate.
In some embodiments, an acute angle between the reflecting plate and a plane where the display panel is located is greater than or equal to 45 °.
In some embodiments, the reflecting plate includes at least two sections, and each section has a different included angle with a plane in which the display panel is located.
In some embodiments, the reflective plate includes a first section fixedly connected to the driving circuit board and a second section connected to the first section;
the included angle between the second section and the plane of the display panel is larger 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 included angle between the second section and the plane of the display panel is larger than or equal to 45 degrees.
In some embodiments, the included angle between the first section and the plane where the display panel is located is 90 °, and the included angle between the third section and the plane where the display panel is located is 90 °.
In some embodiments, the distance from the junction of the first segment and the second segment to the drive circuit board is greater than the distance from the light sensing end of the light sensor to the drive circuit board.
In some embodiments, the length of each section of the reflector plate is the same.
In some embodiments, the shortest distance of the reflective plate to the light sensor ranges from 0.3mm to 1mm.
In some embodiments, the reflective plate includes a body plate having a thickness ranging from 0.15mm to 0.4mm;
a reflecting surface is arranged on one side surface of the main body plate, which is close to the light sensor, and a silver film is arranged on the reflecting surface, wherein the thickness of the silver film ranges from 5 mu m to 10 mu m; and/or the number of the groups of groups,
the reflecting plate is connected with the driving circuit board in a welding way or an adhesive way.
In a second aspect of an embodiment of the present application, there is provided a display device including:
the display module of the first aspect.
The display module provided by the embodiment of the application is provided with at least one reflecting plate, wherein the at least one reflecting plate is arranged on one side of the display panel, which is away from the display side, and the reflecting plate is used for reflecting part of external light transmitted through the display panel to the light sensor. The external environment light on the display side irradiates on the surface of the reflecting plate through the second light ray of the display panel, and the second light ray can reach the light sensor through the reflection of the reflecting plate so as to be received by the light sensor. The reflection plate can increase the light quantity received by the light sensor for the reflection of the second light, can compensate the loss of low transmittance of the light of the external environment due to the functional film layer of the display panel, improves the sensing precision and sensitivity of the light sensor for the light brightness of the external environment, and further improves the precision and sensitivity of the display module for adjusting the display brightness of the display panel based on the light brightness of the external environment.
Drawings
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another display module provided in an embodiment of the present application;
FIG. 3 is a diagram showing a positional relationship between a reflective plate and a light sensor according to an embodiment of the present application;
FIG. 4 is a diagram showing a relationship between a reflective plate and a light sensor according to another embodiment of the present application;
FIG. 5 is a diagram showing a relationship between a reflective plate and a light sensor according to an embodiment of the present application;
FIG. 6 is a diagram showing a relationship between a reflective plate and a light sensor according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another display module according to an 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 still another display module according to an embodiment of the present application;
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 following detailed description of the technical solutions of the embodiments of the present specification is made through the accompanying drawings and the specific embodiments, and it should be understood that the specific features of the embodiments of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and not limit the technical solutions of the present specification, and the technical features of the embodiments 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. Moreover, 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 phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes two or more cases.
At present, more and more display brightness of the display device can be automatically adjusted along with the light change of the external environment, specifically, the light brightness of the external environment can be collected through the light sensor, the collected light brightness of the external environment is analyzed and calculated through the processor, and the adjustment of the display brightness is controlled through the driving chip. However, as the integrated functions of the display device are increased, the light sensor may be affected to collect the brightness of the external environment, so as to reduce the sensitivity and accuracy of the display brightness adjustment of the display device.
In view of the above, the embodiments of the present application provide a display module and a display device, which can improve the sensitivity and accuracy of display brightness adjustment.
In a first aspect of the embodiment of the present application, a display module is provided, and fig. 1 is a schematic structural diagram of a display module provided in the embodiment of the present application. As shown in fig. 1, a display module provided in an embodiment of the present application includes: 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 the outside of the display side 101 transmitted through the display panel 100, and obtain luminance data of the outside environment of the display side 101 according to the received light.
It should be noted that, according to the area of the sensing end of the light sensor 200, the light sensor 200 can only receive the light transmitted through the local area of the display panel 100. For example, the first light ray L0 entering the space surrounded by the dotted line shown in fig. 1 may be received by the light sensor 200. In general, to integrate more functions associated with display, more functional film layers, such as a touch layer, a filter layer, or a polarizer, are integrated in a display panel. In addition, to achieve a larger screen duty cycle, the pixels cover more area of the display panel. The light transmittance of the display panel is reduced, so that the light quantity received by the light sensor is influenced, and finally, the brightness data sensed by the light sensor cannot reflect the brightness of the external environment on the real display side, so that the detection precision of the display module to the brightness of the external environment is lower, and the precision and sensitivity of the display module to the display brightness of the display panel are lower based on the brightness of the external environment.
In view of the above, the display module according to the embodiment of the application is provided with at least one reflective plate 300, where 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 configured to reflect a portion of external light transmitted through the display panel 100 to the light sensor. As shown in fig. 1, the reflecting plate 300 may be a single structure or may be at least two separate baffles, and embodiments of the present application are not limited in particular. The external ambient light of the display side 101 irradiates the surface of the reflective plate 300 through the second light L1 of the display panel 100, and the second light L1 may reach the light sensor 200 after being reflected by the reflective plate 300, so as to be received by the light sensor 200. The reflection of the second light L1 by the reflective plate 300 can increase the light quantity received by the light sensor 200, compensate the loss of low transmittance of the light of the external environment due to the functional film layer of the display panel 100, improve the sensing precision and sensitivity of the light sensor 200 to the light of the external environment, and further improve the precision and sensitivity of the display module to adjust the display brightness of the display panel based on the light of the external environment.
In the display module provided by the embodiment of the application, at least one reflecting plate 300 is provided, the at least one reflecting plate 300 is disposed on one side of the display panel 100 away from the display side 101, and the reflecting plate 300 is used for reflecting part of external light transmitted through the display panel 100 to the light sensor. The external ambient light of the display side 101 irradiates the surface of the reflective plate 300 through the second light L1 of the display panel 100, and the second light L1 may reach the light sensor 200 after being reflected by the reflective plate 300, so as to be received by the light sensor 200. The reflection of the second light L1 by the reflective plate 300 can increase the light quantity received by the light sensor 200, compensate the loss of low transmittance of the light of the external environment due to the functional film layer of the display panel 100, improve the sensing precision and sensitivity of the light sensor 200 to the light of the external environment, and further improve the precision and sensitivity of the display module to adjust the display brightness of the display panel based on the light of the external environment.
In some embodiments, the display panel includes a photosensitive region, and the orthographic projections of the light sensor and the reflecting plate on the display panel fall into the photosensitive region; the reflecting plate is used for reflecting the external light transmitted from the photosensitive area to the light sensor.
Fig. 2 is a schematic structural diagram of another display module according to an embodiment of the present application. As shown in fig. 2, the second light L1 incident on the reflection plate 300 is external ambient light transmitted from the light sensing region 102 of the display panel 100. For example, the photosensitive area 102 may be defined according to the setting area of the reflective plate 300, so as to implement sensing compensation of the light brightness to a limited extent, and avoid excessive light being reflected to the light sensor 200, so that the light brightness sensed by the light sensor 200 exceeds the actual light brightness of the external environment.
In some embodiments, referring to fig. 2, at least one reflection plate 300 is disposed at a circumferential side of the light sensor 200, and a reflection surface 301 is disposed at a side of the reflection plate 300 close to the light sensor 200. The reflection plate 300 may partially surround the light sensor 200, and the reflection plate 300 may entirely surround the light sensor 200, and may be disposed according to the compensation requirement of the actual reflected light brightness. Illustratively, the reflectivity of the reflective plate 300 to the light receiving area 102 may be comparable to the loss of the brightness of the display panel 100 to the transmitted light, and the sensing accuracy and sensitivity of the light sensor 200 to the brightness of the external environment may be better ensured.
In some embodiments, at least one reflection plate 300 is orthographically projected on the display panel 100 in a closed ring shape. The reflection plate 300 can reflect the peripheral light of the light sensor 200 at various angles to sufficiently compensate the sensed light brightness of the light sensor 200.
In some embodiments, the reflective plate 300 includes an integrated annular baffle. It should be noted that the ring may be a circular ring, an elliptical ring, a polygonal ring, etc., and embodiments of the present application are not limited specifically. The integrated annular baffle structure is easy to realize and easy to assemble.
Illustratively, the reflecting surface 301 of the reflecting plate 300 may be a curved surface, for example, may be a curved surface, and may be recessed toward a direction away from the light sensor 200, which may serve to aggregate light rays.
Fig. 3 is a schematic diagram illustrating a positional relationship between a reflective plate and a light sensor according to an embodiment of the present application. As shown in fig. 3, the reflection plate 300 is a circular baffle, and the reflection surface 301 is a curved surface.
Fig. 4 is a schematic diagram illustrating a positional relationship between a reflective plate and a light sensor according to another embodiment of the present application. As shown in fig. 4, the reflection plate 300 is a rectangular ring baffle.
Fig. 5 is a schematic diagram illustrating 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 reflection plate 300 half surrounds the light sensor 200.
Fig. 6 is a schematic diagram illustrating 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 reflection plates 300 is plural, and a space surrounded by the plurality of reflection plates 300 can accommodate the light sensor 200.
It should be noted that the shape and the number of the reflection plates may be set according to the specific requirement of the amount of reflected light, and the embodiment of the present application is not particularly limited.
In some embodiments, the display module provided by the embodiment of the present application further includes: the driving circuit board and at least two connecting circuit boards, the driving circuit board sets up in the one side that the display panel deviates from the display side, reflecting plate and driving circuit board fixed connection, light sensor and driving circuit board electricity are connected. The display panel comprises a flexible circuit board, the flexible circuit board is electrically connected with the driving circuit board, the flexible circuit board is provided with a hollow in a photosensitive area, and the hollow can be used for accommodating the reflecting plate and the optical sensor, so that the flexible circuit board is prevented from shielding the sensing of the light of the external environment. The driving circuit board is electrically connected with the flexible circuit board through a 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 light sensor and the reflecting plate.
The driving circuit board is used for transmitting the brightness data sensed by the light sensor to the control main board, the controller or the processor of the main board analyzes the received brightness data, brightness adjustment data of the display panel can be obtained, the brightness adjustment data are converted into driving adjustment signals of the display panel and fed back to the driving circuit board, the driving circuit board transmits the driving adjustment signals to the flexible circuit board through the connecting circuit board, and the flexible circuit board can drive adjustment of the brightness of a display picture of the display panel according to the driving adjustment signals. The flexible circuit board may be electrically connected to a driving chip of the display panel, and the driving chip drives display adjustment of the display panel based on the driving adjustment signal.
Fig. 7 is a schematic structural diagram of still another display module according to an 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 bind with the binding area of the display substrate 130, the binding pins of the display substrate 130 are usually disposed on the side where the display side is located, the flexible circuit board 110 can be bent to the side where the display substrate 130 deviates 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, and also can be the bending of the binding area of the display substrate, and then the display substrate 130 can be the flexible substrate. The heat dissipation layer 120 can dissipate heat generated on the display substrate 130 and the flexible circuit board 110, and has the function of improving the heat resistance of the display module, thereby improving the use reliability of the display module. The display substrate 130 may be any display substrate, 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. The polarizer 140 may play a role of filtering light for improving a display effect. The optical adhesive 150 is used for bonding the polarizer 140 and the cover plate 160, the transmittance of the optical adhesive 150 and the cover plate 160 is above 99%, and the cover plate 160 can be used for protecting the display substrate 130 and other film layers.
It should be noted that, the display panel provided in the embodiment of the present application may be a flexible display panel, and the present application is not limited in particular.
Illustratively, referring to fig. 7, a connection circuit board 500 is used to make electrical connection of the drive circuit board 400 with 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 a corresponding pad of the driving circuit board 400 by means of a bonding process. The light sensor 200 may be electrically connected to the driving circuit board 400 through the third soldering pin 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 pins and pads, or may be an adhesive, and the reflective plate 300 may be soldered or adhesively connected to the driving circuit board 400, which is not particularly limited in the embodiment of the present application. The connection circuit board 500 may be a hard circuit board, and the connection circuit board 500 may support a space between the driving circuit board and the display panel, and may provide enough accommodation space for the light sensor 200 and the reflection plate 300, so that the reflection plate 300 reflects enough light onto the light sensor 200, so as to ensure that the light intensity sensed by the light sensor 200 is closer to the light intensity of the external environment, and improve the light intensity sensing precision and sensitivity of the external environment.
Fig. 8 is a schematic structural diagram of a driving circuit board according to an embodiment of the present application. As shown in fig. 8, the connection circuit board 500 surrounds the reflection plate 300 and the light sensor 200, and the number and arrangement of the first and second soldering pins 510 and 520 shown in fig. 8 are merely illustrative and are not particularly limited as embodiments of the present application.
It should be noted that, pads are disposed at corresponding positions of the first soldering pin 510, the second soldering pin 520, the third soldering pin 201, and the connection structure 302 for realizing soldering connection.
In some embodiments, the acute angle between the reflective 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 rays irradiated on the reflection surface 301 of the reflection plate 300 are reflected to the light sensor 200.
Referring to fig. 1 and 2, the reflecting plate 300 has a unique angle with the plane of the display panel 100, and the reflecting plate 300 has a simple structure and is easy to manufacture and assemble.
In some embodiments, the reflective plate 300 includes at least two sections, and each section has a different included angle with respect to the plane of the display panel. Different included angles can play roles of different reflection effects or gathering light rays to different degrees.
Referring to fig. 7, the reflection plate 300 includes a first section 310 and a second section 320, the first section 310 being fixedly connected to the driving circuit board 400, the second section 320 being connected to the first section 310; the acute angle between the second section 320 and the plane of the display panel is greater than or equal to 45 °. The second section 320 may serve as a section of the reflection plate 300 that mainly plays a role in reflection, and the first section 310 may serve as a support connection.
In some embodiments, fig. 9 is a schematic structural diagram of still another display module provided in an embodiment of the present application. As shown in fig. 9, the reflective plate 300 includes a first section 310, a second section 320, and a third section 330, the first section 310 is fixedly connected to the driving circuit board 400, and the second section 320 is disposed between the first section 310 and the third section 330; the acute angle between the second section 320 and the plane of the display panel is greater than or equal to 45 °. The first segment 310 has an angle of 90 ° with the plane of the display panel, and the third segment 330 has an angle of 90 ° with the plane of the display panel. The edge between the optical cement 150 and the cover plate 160 is provided with a light shielding ink 170 for shielding the edge from light leakage.
For example, referring to fig. 9, taking an angle α=60° between the second segment 320 and the plane of the display panel as an example, an angle formed by the light passing through the display panel and the reflective surface of the second segment reflective plate is 30 °, and the reflected incident angle α1=60°, according to the principle of specular reflection, the light in the light sensing area 102 may be indirectly reflected by the reflective plate 300 to the light sensing end of the light sensor 200 to be sensed.
In some embodiments, referring to fig. 3, the distance from the connection of the first section 310 and the second section 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 sensing end of the light sensor 200 is a surface close to one side of the display panel, and the distance from the connection part of the first section 310 and the second section 320 to the driving circuit board 400 is greater than the distance from the light sensing end of the light sensor 200 to the driving circuit board 400, so that the second section 320 can be ensured to be used for reflecting effective light, i.e. the reflected light can be irradiated to the light sensing end of the light sensor 200. The first and third sections 310 and 330 are disposed perpendicular to the display panel and may serve to enclose light.
In some embodiments, the length of each section of reflecting plate is the same, so that the reflection of light is easy to realize and uniform.
In some embodiments, the shortest distance of the reflective plate 300 to the light sensor 200 ranges from 0.3mm to 1mm. Illustratively, the connection of the connection structure 302 to the first segment 310 is in the range of 0.3mm to 1mm from the light sensor 200, which ensures that the electrical connection of the light sensor 200 is not affected.
In some embodiments, the reflective plate includes a body plate having a thickness ranging from 0.15mm to 0.4mm; the surface of one side of the main body plate, which is close to the light sensor, is provided with a reflecting surface, and the reflecting surface is provided with a silver film, wherein the thickness of the silver film ranges from 5 mu m to 10 mu m. The body plate may be stainless steel or copper foil, and embodiments of the present application are not particularly limited. Silver is a preferred material for achieving specular reflection and is easy to achieve.
It should be noted that the photosensitive area 102 may be disposed in the middle of the display panel or may be disposed at an edge, and embodiments of the present application are not limited in particular.
In a second aspect of the embodiment of the present application, a display device is provided, and fig. 10 is a schematic structural diagram of the display device provided in the 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.
The driving circuit board of the display module transmits the light brightness data sensed by the light sensor to the control main board, the main board can be used as a bearing module of a controller of the display device, the controller on the main board can analyze the received light brightness data, brightness adjustment data of the display panel can be obtained, the brightness adjustment data are converted into driving adjustment signals of the display panel and fed back to the driving circuit board, the driving circuit board transmits the driving adjustment signals to the flexible circuit board through the connecting circuit board, and the flexible circuit board can drive adjustment of the brightness of a display picture of the display panel according to the driving adjustment signals. The flexible circuit board may be electrically connected to 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 by the embodiment of the application, the display module is provided with at least one reflection plate 300, the at least one reflection plate 300 is disposed on a side of the display panel 100 facing away from the display side 101, and the reflection plate 300 is used for reflecting part of external light transmitted through the display panel 100 to the light sensor. The external ambient light of the display side 101 irradiates the surface of the reflective plate 300 through the second light L1 of the display panel 100, and the second light L1 may reach the light sensor 200 after being reflected by the reflective plate 300, so as to be received by the light sensor 200. The reflection of the second light L1 by the reflective plate 300 can increase the light quantity received by the light sensor 200, compensate the loss of low transmittance of the light of the external environment due to the functional film layer of the display panel 100, improve the sensing precision and sensitivity of the light sensor 200 to the light of the external environment, and further improve the precision and sensitivity of the display module to adjust the display brightness of the display panel based on the light of the external environment.
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 embodiment of the present application is not limited in particular.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
While preferred embodiments of the present description 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. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the disclosure.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present specification without departing from the spirit or scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims and the equivalents thereof, the present specification is also intended to include such modifications and variations.

Claims (15)

1. A display module, comprising:
a display panel;
the optical sensor is arranged on one side of the display panel, which is away from the display side;
at least one reflecting plate arranged on one side of the display panel away from the display side, wherein the reflecting plate is used for reflecting part of external light transmitted through the display panel to the light sensor;
the driving circuit board is arranged on one side of the display panel, which is away from the display side;
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 included angle between the second section and the plane of the display panel is larger than or equal to 45 degrees.
2. The display module assembly of claim 1, wherein the display module assembly comprises,
the display panel comprises a photosensitive area, and orthographic projections of the light sensor and the reflecting plate on the display panel fall into the photosensitive area;
the reflecting plate is used for reflecting the external light transmitted from the photosensitive area to the light sensor.
3. The display module assembly of claim 1, wherein the display module assembly comprises,
at least one reflecting plate is arranged on the periphery side of the light sensor, and a reflecting surface is arranged on one side, close to the light sensor, of the reflecting plate.
4. The display module assembly of claim 3, wherein the display module assembly,
at least one of the reflecting plates is projected on the display panel in a closed ring shape.
5. The display module assembly of claim 4, wherein the display module assembly comprises,
the reflecting plate includes an integrated annular baffle.
6. The display module assembly of any one of claims 1-5, wherein,
the optical sensor is electrically connected with the driving circuit board, and the driving circuit board is used for transmitting the 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 provided with a hollowed-out part in the photosensitive area.
7. The display module assembly of claim 6, further comprising:
the drive circuit board is electrically connected with the flexible circuit board through the connection circuit board, and the connection circuit board is used for supporting a space between the drive circuit board and the display panel so as to accommodate the light sensor and the reflecting plate.
8. The display module assembly of claim 6, wherein the display module assembly comprises,
the included angle between the reflecting plate and the plane of the display panel is larger than or equal to 45 degrees.
9. The display module assembly of claim 6, wherein the display module assembly comprises,
the reflecting plate comprises at least two sections, and the included angle between each section of reflecting plate and the plane where the display panel is located is different.
10. The display module assembly of claim 9, wherein the display module assembly comprises,
the reflecting plate comprises a first section, a second section and a third section, wherein 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 included angle between the second section and the plane of the display panel is larger than or equal to 45 degrees.
11. The display module assembly of claim 10, wherein the display module assembly comprises,
the included angle between the first section and the plane where the display panel is located is 90 degrees, and the included angle between the third section and the plane where the display panel is located is 90 degrees.
12. The display module assembly of claim 1, wherein the display module assembly comprises,
the distance from the junction 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.
13. The display module assembly of claim 1, wherein the display module assembly comprises,
the shortest distance between the reflecting plate and the light sensor is in the range of 0.3mm to 1mm.
14. The display module assembly of claim 6, wherein the display module assembly comprises,
the reflecting plate comprises a main body plate, wherein the thickness of the main body plate ranges from 0.15mm to 0.4mm;
a reflecting surface is arranged on one side surface of the main body plate, which is close to the light sensor, and a silver film is arranged on the reflecting surface, wherein the thickness of the silver film ranges from 5 mu m to 10 mu m; and/or the number of the groups of groups,
the reflecting plate is connected with the driving circuit board in a welding way or an adhesive way.
15. A display device, comprising:
the display module of any one of claims 1-14.
CN202211008839.0A 2022-08-22 2022-08-22 Display module and display device Active CN115394191B (en)

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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
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
CN215064885U (en) * 2021-07-15 2021-12-07 北京小米移动软件有限公司 Sensor module and 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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