CN110286524B - Display module and display device - Google Patents
Display module and display device Download PDFInfo
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- CN110286524B CN110286524B CN201910580459.6A CN201910580459A CN110286524B CN 110286524 B CN110286524 B CN 110286524B CN 201910580459 A CN201910580459 A CN 201910580459A CN 110286524 B CN110286524 B CN 110286524B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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Abstract
The embodiment of the application provides a display module assembly and display device, and the display module assembly includes: backlight unit and the display panel who is located backlight unit light-emitting side. Backlight unit includes slip support plate and lamp plate, and the lamp plate includes base plate and at least one light source base, and the one end that slip support plate was kept away from to the light source base is provided with light source containing structure for hold the light source. The light source base is provided with spherical protrusions, the sliding support plate is provided with first accommodating cavities, and the spherical protrusions correspond to the first accommodating cavities one to one. When the sliding support plate slides along the direction parallel to the first plane, the first accommodating cavity drives the spherical protrusion to rotate, and the spherical protrusion drives the light source base to deflect. The first plane is a plane where the surface of one side of the sliding carrier plate, which is far away from the display panel, is located. The embodiment of the application realizes that the light source base of the backlight module deflects along with the sliding of the sliding support plate, so that the brightness of the display image under a large visual angle observation angle is enhanced, and the user experience is improved.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of display, in particular to a display module and a display device.
[ background of the invention ]
With the development of display technology, large-sized flat display panels and curved display panels have appeared.
The passive light-emitting display panel needs the backlight module to provide light, and the light passes through the array substrate, the liquid crystal layer and the color film substrate of the display panel and then is emitted. Therefore, the angle of the light emitted by the display panel is affected by the angle of the light emitted by the backlight module.
When a user observes an image of the display panel under a large visual angle, less light rays enter human eyes, so that the brightness of the observed image is low, and the user experience is influenced.
[ summary of the invention ]
In view of this, an embodiment of the present application provides a display module and a display device, where the display module includes a backlight module and a display panel located on a light-emitting side of the backlight module. The sliding support plate in the backlight module can drive the light source base to deflect, so that the light emitting direction of the light source contained in the light source base deflects. The brightness of the displayed image under a large viewing angle is enhanced, and the display effect is improved.
In one aspect, embodiments of the present application provide a display module, including,
the display panel comprises a backlight module and a display panel positioned on the light-emitting side of the backlight module;
the backlight module comprises a sliding support plate and a lamp panel, wherein the lamp panel comprises a substrate and at least one light source base;
a light source accommodating structure is arranged at one end of the light source base, which is far away from the sliding carrier plate, and is used for accommodating a light source;
one end, close to the sliding support plate, of the light source base is provided with a spherical bulge, at least one first accommodating cavity is formed in the sliding support plate, and the spherical bulge corresponds to the first accommodating cavity one by one and is located in the first accommodating cavity;
when the sliding support plate slides along a direction parallel to the first plane, the first accommodating cavity drives the spherical protrusion to rotate, and the spherical protrusion drives the light source base to deflect;
the first plane is a plane where the surface of one side of the sliding carrier plate, which is far away from the display panel, is located.
On the other hand, the embodiment of the application provides a display device, display device includes above-mentioned display module assembly.
According to the display module and the display device provided by the embodiment of the application, the display panel is located on the light emitting side of the backlight module, and light is provided by the light source of the backlight module, so that the display panel can display images. Backlight unit includes slip support plate and lamp plate, and the light source base on the lamp plate passes through spherical protrusion and forms the connection with the first holding chamber on the slip support plate for light source base can take place to deflect along with the slip of slip support plate, and then drives the light-emitting direction of the light source on the light source base and takes place to deflect. The brightness of the displayed image under a large viewing angle is enhanced, and the display effect is improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a large-sized flat display panel;
FIG. 2 is a schematic view of a curved display panel;
FIG. 3 is a graph showing the relationship between light intensity and light emission angle;
fig. 4 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 5 is a schematic structural view of a lamp panel provided in the embodiment of the present application;
FIG. 6 is a schematic cross-sectional view taken along the dashed line A-A' in FIG. 4;
fig. 7 is a schematic cross-sectional view of the sliding carrier plate in fig. 6 when sliding;
FIG. 8 is a schematic cross-sectional view of a display module similar to the display module of the present disclosure;
fig. 9 is a schematic cross-sectional view of the sliding carrier plate in fig. 8 when sliding;
fig. 10 is another schematic structural diagram of a display module according to an embodiment of the disclosure;
FIG. 11 is a schematic cross-sectional view taken along the dashed line B-B' in FIG. 10;
fig. 12 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 13 is a schematic structural diagram of a display module according to an embodiment of the present application;
FIG. 14 is a block diagram of a control circuit according to an embodiment of the present disclosure;
fig. 15 is a schematic structural diagram of a driving circuit according to an embodiment of the present application;
FIG. 16 is a further cross-sectional view taken along dashed line A-A' of FIG. 4;
FIG. 17 is a further cross-sectional view taken along dashed line A-A' of FIG. 4;
FIG. 18 is a further schematic cross-sectional view taken along dashed line A-A' of FIG. 4;
FIG. 19 is a further schematic cross-sectional view taken along dashed line A-A' of FIG. 4;
fig. 20 is a schematic structural diagram of a sliding carrier according to an embodiment of the present application;
fig. 21 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
fig. 22 is a schematic cross-sectional view taken along the dashed line C-C' in fig. 21.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.
It should be understood that although the terms first, second, third, etc. may be used to describe the display regions in the embodiments of the present application, the display regions should not be limited to these terms. These terms are only used to distinguish the display areas from each other. For example, the first display region may also be referred to as a second display region, and similarly, the second display region may also be referred to as a first display region without departing from the scope of the embodiments of the present application.
In order to more clearly illustrate the display module provided in the embodiment of the present application, a display principle of the display module is described below.
The display module comprises a backlight module and a display panel, and the display panel is positioned on the light emitting side of the display module. The backlight module comprises a plurality of light sources and a plurality of optical films, wherein the light sources in the backlight module can provide divergent white light, the divergent white light is converted into uniform white light through the functions of scattering, refraction, reflection and the like of the optical films (such as a diffusion plate, a prism sheet and the like) in the backlight module, and the uniform white light is emitted from the backlight module and then enters the display panel.
The side of the display panel facing away from the viewer is the side close to the backlight module. The display panel comprises an array substrate and a color film substrate which are oppositely arranged, and a liquid crystal layer is arranged between the array substrate and the color film substrate. The array substrate is positioned on one side of the color film substrate close to the backlight module.
The array substrate is usually provided with a pixel electrode and a common electrode, in a display stage, an electric field between the pixel electrode and the common electrode drives liquid crystal molecules in a liquid crystal layer to turn, and the light transmittance of the liquid crystal molecules which turn differently to light rays is different.
The color film substrate has a color resist layer having a plurality of color resist units, each color resist unit typically having a plurality of sub-color resist units of different colors, thereby enabling light that ultimately passes through the display panel to be changed to light of different colors.
Therefore, the white light emitted by the backlight module passes through the display panel and becomes light rays with different intensities and different colors. Light emitted from the display panel is incident on human eyes, so that the human eyes can see images.
Based on the above description, it can be known that the light emitted from the display panel is formed after the light emitted from the backlight module passes through the display panel. Therefore, the angle of the light emitted by the display panel is influenced by the angle of the light emitted by the backlight module.
FIG. 1 is a schematic view of a large-sized flat display panel. FIG. 2 is a schematic view of a curved display panel. Fig. 3 is a diagram showing the relationship between the intensity of light and the emission angle. As shown in fig. 1 and 2, for large-sized flat display panels and curved display panels, when a user views an image displayed on the display panel on a light emitting side of the display panel, a certain viewing angle exists between the display panel and the user. As a result, as shown in fig. 1 and 2, the angle of the light emitting angle formed between the position of the display panel where the angle of view of the human eye is large and the light L emitted from the backlight module is large.
As shown in fig. 3, the intensity of light emitted from the display panel decreases with an increase in the light emission angle, and for a large-sized flat display panel or a curved display panel, the light emitted from the display panel to human eyes is less in a region with a larger light emission angle. Therefore, the image observed by the human eye at a position with a large viewing angle has a problem of low local brightness, which affects the user experience.
In order to solve the problem, an embodiment of the application provides a display module. For convenience of explanation, a large-sized flat display panel is taken as an example, the inventive concept of the embodiment of the present application can be applied to a curved display panel, and the embodiment of the present application does not limit the invention.
Fig. 4 is a schematic structural diagram of a display module according to an embodiment of the present disclosure. Fig. 5 is a schematic structural view of a lamp panel provided in the embodiment of the present application. Fig. 6 is a schematic cross-sectional view along the dotted line a-a' in fig. 4. As shown in fig. 4-6, the display module includes a backlight module 210 and a display panel 220 disposed on the light-emitting side of the backlight module 210. The backlight module 210 includes a sliding carrier 211 and a lamp panel 212, and the lamp panel 212 includes a substrate 2121 and at least one light source base 2122.
Fig. 6 only illustrates the relative positional relationship among the display panel 220, the sliding carrier 211, and the lamp panel 212, and the more detailed structure in the non-display area 12 is not illustrated.
The light source base 2122 is provided with a light source accommodating structure at an end away from the sliding carrier 211 for accommodating the light source 2123. One end of the light source base 2122 close to the sliding carrier 211 is provided with a spherical protrusion 21221, the sliding carrier 211 is provided with at least one first accommodating cavity 2111, and the spherical protrusion 21221 and the first accommodating cavity 2111 are in one-to-one correspondence and are located in the first accommodating cavity 2111.
When the sliding carrier 211 slides along a direction parallel to the first plane, the first receiving cavity 2111 drives the spherical protrusion 21221 to rotate, and the spherical protrusion 21221 drives the light source base 2122 to deflect. The first plane is a plane where a surface of the sliding carrier 211 away from the display panel is located.
The display module provided by the embodiment of the application includes a backlight module 210 and a display panel 220 located at the light-emitting side of the backlight module 210. The light emitted from the backlight module 210 passes through the display panel 220, so that the display panel 220 can display an image.
The backlight module 210 includes a sliding carrier 211 and a lamp panel 212, wherein the sliding carrier 211 can slide along a direction parallel to the first plane, but the substrate 2121 cannot slide. Specifically, the lamp panel 212 includes a fixed base plate 2121 and a rotatable light source base 2122, and the spherical protrusion 21221 at one end of the light source base 2122 is located in the first receiving cavity 2111 correspondingly disposed on the sliding carrier plate 211, so that the spherical protrusion 21221 and the first receiving cavity 2111 form a relatively fixed connection structure.
It should be noted that, the structure of the spherical protrusion 21221 in the embodiment of the present application may be various, and may be a sphere, a cylinder with a spherical surface, or a half sphere, which is not limited in the embodiment of the present application.
Fig. 7 is a schematic cross-sectional view of the sliding carrier plate in fig. 6 during sliding. As shown in fig. 7, when the sliding carrier 211 slides along a direction parallel to the first plane, a relative displacement is formed between the fixed-position substrate 2121 and the sliding carrier 211 with a changed position, and since one end of the light source base 2122 on the lamp panel 212 is connected to the sliding carrier 211, when the sliding carrier 211 slides, the light source base 2122 is driven to deflect, so that the light emitting direction of the light source 2123 disposed in the light source accommodating structure of the light source base 2122 is deflected, the brightness of the display region with lower brightness in human eyes is enhanced, and the display effect is improved. Specifically, at this time, when human eyes observe at the right side with a larger viewing angle, the sliding carrier moves to the left side, so that the bottom of the light source base 2122 is driven to move to the left, and the light emitting surface of the light source 2123 inclines to the upper right, so that light rays incident to people are increased, the brightness is enhanced, and good user experience can be achieved at the larger viewing angle.
The light source base 2122 of the backlight module is connected to the first receiving cavity 2111 and the sliding carrier 211 via the spherical protrusion 21221.
It is understood that, in some modified embodiments, fig. 8 is a schematic cross-sectional view of a display module similar to the display module provided in the embodiments of the present application. As shown in fig. 8, the display module includes a backlight module 210 and a display panel 220 located at a light-emitting side of the backlight module 210. The backlight module 210 includes a sliding carrier 211 and a lamp panel 212, and the lamp panel 212 includes a substrate 2121 and at least one light source base 2122.
The light source base 2122 is provided with a light source accommodating structure at an end away from the sliding carrier 211 for accommodating the light source 2123. One end of the light source base 2122 near the sliding carrier 211 is provided with a second saw tooth portion 21222, the sliding carrier 211 is provided with at least one third saw tooth portion 2112, the second saw tooth portion 21222 and the third saw tooth portion 2112 correspond to each other one by one, and the second saw tooth portion 21222 and the third saw tooth portion 2112 are engaged with each other. Here, the engagement means that, during the rotation, one tooth of the second saw tooth portion 21222 is located between the teeth of the third saw tooth portion 2112, and one tooth of the third saw tooth portion 2112 is located between the teeth of the second saw tooth portion 21222.
When the sliding carrier 211 slides in a direction parallel to the first plane, the third saw tooth portion 2112 drives the second saw tooth portion 21222 to rotate, and the second saw tooth portion 21222 drives the light source base 2122 to deflect. The first plane is a plane where the sliding carrier plate 211 is located.
Fig. 9 is a schematic cross-sectional view of the sliding carrier plate in fig. 8 when sliding. As shown in fig. 9, when the sliding carrier 211 slides along a direction parallel to the first plane, a relative displacement is formed between the lamp panel 212 with a fixed position and the sliding carrier 211 with a changed position, and since one end of the light source base 2122 on the lamp panel 212 is connected to the sliding carrier 211, the sliding carrier 211 can drive the light source base 2122 to deflect when sliding, so that the light emitting direction of the light source 2123 disposed in the light source accommodating structure of the light source base 2122 is deflected, the display brightness of the display region with lower brightness in human eyes is enhanced, and the display effect is improved.
In order to enable the sliding carrier plate 211 to slide along a direction parallel to the first plane, the embodiment of the present application provides an implementation manner. For convenience of explanation, the following description is based on the structure of the display module in fig. 6 and 7, and is not intended to limit the embodiments of the present application.
Fig. 10 is another schematic structural diagram of a display module according to an embodiment of the disclosure. Fig. 11 is a schematic cross-sectional view taken along the dashed line B-B' in fig. 10. As shown in fig. 10 and 11, the display module includes a display area 11 and a non-display area 12, and the non-display area 12 is disposed around the display area 11. In the non-display area 12, the sliding carrier 211 further includes a first sawtooth portion 2113, the display module further includes a driving motor 121, the driving motor 121 includes a rotor 1211, the rotor 1211 is connected with a transmission gear 122, and the transmission gear 122 is engaged with the first sawtooth portion 2113. That is, during the rotation, a certain tooth of the transmission gear 122 is located between the teeth of the first serrated portion 2113, and a certain tooth of the first serrated portion 2113 is located between the teeth of the transmission gear 122. When the rotor 1211 rotates, the sliding carrier 211 is driven to slide along a direction parallel to the first plane.
It should be noted that fig. 11 only illustrates the first sawtooth portion 2113 and the sliding carrier 211 as being integrally formed, and in an actual manufacturing process, the two may be mechanically linked in other feasible manners.
In order to more intuitively describe how the display module in the embodiment of the present application controls the sliding of the sliding carrier 211 through the driving motor 121, the following description is given by way of example. Specifically referring to fig. 10 and 11 for the spatial structure, when the rotor 1211 in the driving motor 121 rotates in the clockwise direction in fig. 11, the transmission gear 122 also rotates in the clockwise direction in fig. 11, and the sliding carrier plate 211 slides to the left in fig. 11, and when the rotor 1211 in the driving motor 121 rotates in the counterclockwise direction in fig. 11, the transmission gear 122 also rotates in the counterclockwise direction in fig. 11, and the sliding carrier plate 211 slides to the right in fig. 11. Thereby, the sliding direction of the sliding carrier plate 211 can be controlled by the rotation direction of the rotor 1211 in the driving motor 121.
It is understood that the driving motor 121 has a first input terminal and a second input terminal, and the first input terminal and the second input terminal of the driving motor 121 are equivalent in function, and one input terminal inputs a high voltage, and the other input terminal inputs a low voltage, so as to rotate the rotor 1211 in the driving motor 121. After the polarities of the input voltages of the first input terminal and the second input terminal are exchanged, the rotor 1211 in the driving motor 121 reversely rotates.
For example, when a high voltage is input to the first input terminal and a low voltage is input to the second input terminal, the rotor 1211 rotates clockwise in fig. 11, and the sliding carrier plate 211 slides to the left in fig. 11. When the first input terminal inputs a low voltage and the second input terminal inputs a high voltage, the rotor 1211 rotates in a counterclockwise direction in fig. 11, and the sliding carrier plate 211 slides to the right in fig. 11. Therefore, the sliding direction of the sliding carrier plate 211 can be controlled by switching the input voltages of the two input terminals of the driving motor 121.
At the same voltage, the inner rotor 1211 rotates at the same angle (i.e., at the same angular velocity) in the same time, and accordingly, the sliding carrier plate 211 slides at the same distance. Therefore, the sliding distance of the sliding carrier 211 can be determined by controlling the rotation time of the rotor 1211, thereby accurately controlling the deflection angle of the light source base 2122. It is understood that the magnitude of the voltage can be adjusted to change the rotation speed of the rotor 1211, so as to adjust the sliding distance of the sliding carrier plate 211.
Further, the display module provided in the embodiment of the present application may include a plurality of driving motors 121 to control the sliding carrier 211 to move in different directions.
Fig. 12 is a schematic structural diagram of a display module according to an embodiment of the present disclosure. As shown in fig. 12, the driving motor 121 includes a first driving motor 121a and a second driving motor 121 b. The first driving motor 121a includes a first rotor 1211a having a first rotation axis parallel to the first direction. Similarly, the second driving motor 121b includes a second rotor 1211b having a second rotation axis parallel to the second direction, and the first direction and the second direction intersect.
Alternatively, the first direction may be an extending direction of data lines in the display panel, and the second direction may be an extending direction of scan lines in the display panel.
The process of the first driving motor 121a and the second driving motor 121b driving the sliding carrier 211 to slide along the direction parallel to the first plane is similar to the process of the first driving motor 121, and is not repeated here.
It should be noted that, since the first rotation axis is parallel to the first direction, the first driving motor 121a can drive the sliding carrier 211 to slide in two directions (i.e. left and right directions in fig. 12) perpendicular to the first direction. Similarly, the second driving motor 121b can drive the sliding carrier 211 to slide in two directions (e.g., upward and downward directions in fig. 12) perpendicular to the second direction, and the first direction and the second direction intersect. Therefore, according to the principle of the displacement vector addition, the first driving motor 121a and the second driving motor 121b simultaneously drive the sliding carrier 211 to slide, and can drive the sliding carrier 211 to slide in any direction parallel to the first plane. Accordingly, the light source base 2122 can also deflect in any direction, so as to drive the light-emitting direction of the light source 2123 to deflect in any direction.
It can be understood that the display effect of the display module depends on the display effect of the display area within the visual angle range of human eyes, and in order to enable the display module to pertinently improve the display brightness of the display area within the visual angle range of human eyes, the display module in the embodiment of the present application can control the sliding of the sliding support plate 211 according to the position of human eyes.
The inventive concept of controlling the sliding of the sliding carrier 211 according to the position of human eyes in the embodiment of the present application can be applied to all the aforementioned display modules, and the embodiment of the present application does not limit this.
Fig. 13 is a schematic structural diagram of a display module according to an embodiment of the present application. Fig. 14 is a block diagram of a control circuit according to an embodiment of the present disclosure. As shown in fig. 13 and 14, the display module further includes a pupil positioning sensor, a control chip and a driving circuit. The pupil positioning sensor is electrically connected with the control chip, and the control chip is electrically connected with the driving motor 121 through a driving circuit.
The pupil positioning sensor can acquire the change of the pupil position and convert the change into a corresponding electric signal, for example, if the pupil moves leftwards, the left movement of the human eye visual angle is indicated, a high level is transmitted to the control chip, and if the pupil moves rightwards, the right movement of the human eye visual angle is indicated, and a low level is output to the control chip.
Specifically, the embodiment of the present application further provides a driving circuit for driving the motor 121 to rotate in different directions according to the electrical signal output by the control chip. Fig. 15 is a schematic structural diagram of a driving circuit according to an embodiment of the present disclosure. As shown in fig. 15, the driving circuit includes a first and gate, a second and gate, a third and gate, a fourth and gate, a first not gate, a second not gate, a first voltage signal terminal, a second voltage signal terminal, a third voltage signal terminal, and a fourth voltage signal terminal. The output voltage polarities of the first voltage signal end and the second voltage signal end are the same, the output voltage polarities of the third voltage signal end and the fourth voltage signal end are the same, and the output voltage polarities of the first voltage signal end and the third voltage signal end are opposite.
The control chip comprises a first output end, a second output end and a third output end. The drive motor 121 includes a first input and a second input.
The output signal of the output end of the first and gate controls the connection or disconnection between the first voltage signal end and the first input end of the driving motor 121, the output signal of the output end of the second and gate controls the connection or disconnection between the second voltage signal end and the second input end of the driving motor 121, the output signal of the third and gate controls the connection or disconnection between the third voltage signal end and the first input end of the driving motor 121, and the output signal of the fourth and gate controls the connection or disconnection between the fourth voltage signal end and the second input end of the driving motor 121.
In the embodiment of the present application, the four voltage signal terminals and the two input terminals of the driving motor are turned on or off by switches. The switch comprises a control end, an input end and an output end. In fig. 15, only four switches are illustrated as NMOS switches, and when the control terminal inputs a high level, the input terminal and the output terminal are turned on, and when the control terminal inputs a low level, the input terminal and the output terminal are turned off. It can be understood that, when the four switches are all PMOS switches, when the control terminal inputs a high level, the input terminal and the output terminal are turned on, and when the control terminal inputs a low level, the input terminal and the output terminal are turned off.
The control of the on/off between the voltage signal terminal and the input terminal of the driving motor by means of the switch is only one possible implementation and is not intended to limit the embodiments of the present application.
And the input end of the first NOT gate is electrically connected with the second output end of the control chip. Two input ends of the first AND gate are respectively and electrically connected with a first output end of the control chip and an output end of the first NOT gate. And the input end of the second NOT gate is electrically connected with the third output end of the control chip. And two input ends of the second AND gate are respectively and electrically connected with the first output end of the control chip and the output end of the second NOT gate. And two input ends of the third AND gate are respectively electrically connected with the first output end and the second output end of the control chip. And two input ends of the fourth AND gate are respectively electrically connected with the first output end and the third output end of the control chip.
In order to explain the operation principle of the driving circuit provided in the embodiment of the present application, the following description is made by way of example.
And when the pupil positioning sensor determines that the pupil moves leftwards, transmitting a high level to the control chip. The first output end of the control chip outputs high level, the second output end outputs low level, and the third output end outputs high level. The output signal of the first and gate is at a high level, the output signal of the second and gate is at a low level, the output signal of the third and gate is at a low level, and the output signal of the fourth and gate is at a high level.
The first voltage signal terminal is connected to the first input terminal of the driving motor, the fourth voltage signal terminal is connected to the second input terminal of the driving motor, the first voltage signal terminal provides a high voltage, the fourth voltage signal terminal provides a low voltage, the rotor 1211 of the driving motor 121 rotates clockwise to drive the sliding support plate 211 to slide leftwards, and the light emitting direction of the light source 2123 deflects rightwards to be aligned with the pupil moving leftwards.
And when the pupil positioning sensor determines that the pupil moves rightwards, transmitting a low level to the control chip. The first output end of the control chip outputs high level, the second output end outputs high level, and the third output end outputs low level. The output signal of the first and gate is at low level, the output signal of the second and gate is at high level, the output signal of the third and gate is at high level, and the output signal of the fourth and gate is at low level.
The third voltage signal terminal is connected to the first input terminal of the driving motor, the second voltage signal terminal is connected to the second input terminal of the driving motor, the third voltage signal terminal provides a low voltage, the second voltage signal terminal provides a high voltage, the rotor 1211 of the driving motor 121 rotates counterclockwise to drive the sliding support plate 211 to slide rightward, and the light emitting direction of the light source 2123 deflects leftward to be aligned with the pupil moving rightward.
The above description of the operation of the driving circuit is only for convenience of understanding the operation principle of the whole driving circuit, and does not limit the embodiments of the present application.
In the display module, the light source 2123 needs to be powered on to emit light, so the light source 2123 and the light source base 2122 need to be electrically connected, and the light source base 2122 and other parts of the backlight module 210 need to be electrically connected.
The embodiment of the present application provides various implementation manners of electrical connection, which are described based on the structure of the display module in fig. 6, and the implementation manners of the electrical connection can be used for all the display modules described above, and do not limit the embodiment of the present application.
Fig. 16 is a further schematic cross-sectional view taken along the dashed line a-a' in fig. 4. As shown in fig. 16, the substrate 2121 is provided with first openings 2124 corresponding to the light source bases 2122 one to one, and the light source bases 2122 penetrate the first openings 2124 in a direction perpendicular to the first plane. A first positive contact 2122a and a first negative contact 2122b are provided on the light source base 2122 and are electrically connected to a second positive contact 2124a and a second negative contact 2124b, respectively, within the first opening 2124.
It will be appreciated that traces within the substrate 2121 are provided for supplying power to the light sources 2123, and that the electrical connection of the first and second positive contacts 2122a, 2124a and the electrical connection of the first and second negative contacts 2122b, 2124b transmit positive and negative voltages from the traces within the substrate 2121 to the light source base 2122.
Fig. 17 is a further schematic cross-sectional view along the dashed line a-a' in fig. 4. As shown in fig. 17, the base plate 2121 is provided with second openings 2125 corresponding to the light source bases 2122 one to one, and the light source bases 2122 penetrate the second openings 2125 in a direction perpendicular to the first plane. The spherical protrusion 21221 is provided with a third positive contact 21221a and a third negative contact 21221b, which are electrically connected to a fourth positive contact 2111a and a fourth negative contact 2111b in the first accommodating cavity 2111, respectively.
It is understood that the traces disposed within the slide carrier 211 for supplying power to the light sources 2123 transmit the positive and negative voltages from the traces within the slide carrier 211 to the light source base 2122 via the electrical connection between the third positive contact 21221a and the fourth positive contact 2111a, and the electrical connection between the third negative contact 21221b and the fourth negative contact 2111 b.
Fig. 18 is a schematic view of a further cross-section along the dashed line a-a' in fig. 4. As shown in fig. 18, the light source accommodating structure is a groove structure. A fifth positive contact 2122a and a fifth negative contact 2122b are provided at the respective ends of the groove in a direction parallel to the first plane. A positive electrode 2123a and a negative electrode 2123b of the light source 2123 are electrically connected to a fifth positive contact 2122a and a fifth negative contact 2122b, respectively.
That is, the light source base 2122 serves as a power supply transmission intermediate for the light source 2123, and power supply is transmitted to the light source 2123 via the light source base 2122.
It should be noted that, in the above-mentioned display module, the electrical connection is performed by using electrode contacts, which facilitates the replacement of the light source base 2122 and the power supply 2123. When a part of the light source base 2122 or a part of the power supply 2123 is damaged in the backlight module 210, the damaged light source base 2122 and the damaged power supply 2123 are only required to be replaced, and the backlight module 210 can be repaired.
Further, when the number of the light sources 2123 in the display module is too large, in order to reduce the number of the light source bases 2122 and the number of other components corresponding to the light source bases 2122, each light source base 2122 in the embodiment of the present application may include a plurality of light source accommodating structures.
Fig. 19 is a further schematic cross-sectional view along the dashed line a-a' in fig. 4. As shown in fig. 19, each light source base 2122 includes a plurality of light source receiving structures, and the plurality of light sources 2123 on each light source base 2122 have the same deflection angle.
It will be appreciated that the plurality of light sources 2123 located on the same light source base 2122 are deflected by the same light source base 2122, so that although a portion of the light sources 2123 is out of the plane of the substrate 2121, the plurality of light sources 2123 are deflected at the same angle.
In addition, fig. 20 is a schematic structural diagram of a sliding carrier according to an embodiment of the present application. As shown in fig. 20, the backlight module 210 may include a plurality of sliding carrier plates 211, and the sliding carrier plates 211 are located on the same plane. The structure of the sliding carrier provided in the embodiment of the present application can be used for all the display modules described above, and the embodiment of the present application does not limit this.
Specifically, different sliding carrier plates 211 can be controlled by different driving motors 121, so that the deflection directions and angles of different light sources 2123 in the backlight module 210 are different. According to the visual angle change of human eyes, the light rays with different brightness are reasonably provided for different display areas of the display panel 220, and the display effect of the display module is improved.
An embodiment of the present application further provides a display device, as shown in fig. 21 and 22, fig. 21 is a schematic structural diagram of the display device provided in the embodiment of the present application, and fig. 22 is a schematic cross-sectional diagram along a dotted line C-C' in fig. 21. The display device comprises the display module. The specific structure of the display module has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 21 and 22 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a vehicle-mounted display screen, a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
Because the display device that this application embodiment provided includes above-mentioned display module assembly, consequently, adopt this display device, display panel is located backlight unit's light-emitting side, provides light by backlight unit's light source for display panel can give out light. Backlight unit includes slip support plate and lamp plate, and the light source base on the lamp plate passes through spherical protrusion and forms the connection with the first holding chamber on the slip support plate for light source base can take place to deflect along with the slip of slip support plate, and then drives the light-emitting direction of the light source on the light source base and takes place to deflect. The brightness of the displayed image under a large viewing angle is enhanced, and the user experience is improved.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (11)
1. A display module, comprising:
the display panel comprises a backlight module and a display panel positioned on the light-emitting side of the backlight module;
the backlight module comprises a sliding support plate and a lamp panel, wherein the lamp panel comprises a substrate and at least one light source base;
a light source accommodating structure is arranged at one end of the light source base, which is far away from the sliding carrier plate, and is used for accommodating a light source;
one end, close to the sliding support plate, of the light source base is provided with a spherical bulge, at least one first accommodating cavity is formed in the sliding support plate, and the spherical bulge corresponds to the first accommodating cavity one by one and is located in the first accommodating cavity;
when the sliding support plate slides along a direction parallel to the first plane, the first accommodating cavity drives the spherical protrusion to rotate, and the spherical protrusion drives the light source base to deflect;
the first plane is a plane where the surface of one side of the sliding carrier plate, which is far away from the display panel, is located.
2. The display module of claim 1,
the display module comprises a display area and a non-display area, and the non-display area is arranged around the display area;
in the non-display area, the sliding carrier plate further comprises a first sawtooth part;
in the non-display area, the display module further comprises a driving motor, and the driving motor comprises a rotor;
the rotor is connected with a transmission gear, and the transmission gear is meshed with the first sawtooth part;
when the rotor rotates, the sliding support plate is driven to slide along the direction parallel to the first plane.
3. The display module of claim 2,
the driving motor comprises a first driving motor and a second driving motor;
the first drive motor includes a first rotor having a first axis of rotation parallel to a first direction;
the second driving motor comprises a second rotor, the second rotor is provided with a second rotating shaft, and the second rotating shaft is parallel to a second direction;
the first direction and the second direction intersect.
4. The display module of claim 2, further comprising:
the pupil positioning sensor, the control chip and the drive circuit;
the pupil positioning sensor is electrically connected with the control chip;
the control chip is electrically connected with the driving motor through the driving circuit.
5. The display module of claim 4,
the driving circuit comprises a first AND gate, a second AND gate, a third AND gate, a fourth AND gate, a first NOT gate, a second NOT gate, a first voltage signal end, a second voltage signal end, a third voltage signal end and a fourth voltage signal end; the polarities of the output voltages of the first voltage signal end and the second voltage signal end are the same, the polarities of the output voltages of the third voltage signal end and the fourth voltage signal end are the same, and the polarities of the output voltages of the first voltage signal end and the third voltage signal end are opposite;
the control chip comprises a first output end, a second output end and a third output end;
the driving motor comprises a first input end and a second input end;
the output signal of the first and gate controls the connection or disconnection between the first voltage signal end and the first input end of the driving motor, the output signal of the second and gate controls the connection or disconnection between the second voltage signal end and the second input end of the driving motor, the output signal of the third and gate controls the connection or disconnection between the third voltage signal end and the first input end of the driving motor, and the output signal of the fourth and gate controls the connection or disconnection between the fourth voltage signal end and the second input end of the driving motor;
the input end of the first NOT gate is electrically connected with the second output end of the control chip;
two input ends of the first AND gate are respectively and electrically connected with the first output end of the control chip and the output end of the first NOT gate;
the input end of the second NOT gate is electrically connected with the third output end of the control chip;
two input ends of the second AND gate are respectively and electrically connected with the first output end of the control chip and the output end of the second NOT gate;
two input ends of the third and gate are respectively and electrically connected with the first output end and the second output end of the control chip;
and two input ends of the fourth and gate are respectively and electrically connected with the first output end and the third output end of the control chip.
6. The display module of claim 1,
the substrate is provided with first openings which correspond to the light source bases one by one, and the light source bases penetrate through the first openings in the direction perpendicular to the first plane;
and a first anode contact and a first cathode contact are arranged on the light source base and are respectively and electrically connected with a second anode contact and a second cathode contact in the first opening.
7. The display module of claim 1,
second openings which correspond to the light source bases one to one are formed in the substrate, and the light source bases penetrate through the second openings in the direction perpendicular to the first plane;
and a third positive contact and a third negative contact are arranged on the spherical protrusion and are respectively and electrically connected with a fourth positive contact and a fourth negative contact in the first accommodating cavity.
8. The display module of claim 1,
the light source accommodating structure is a groove structure;
a fifth positive contact and a fifth negative contact are respectively arranged at two ends of the groove along a direction parallel to the first plane;
the positive electrode and the negative electrode of the light source are electrically connected with the fifth positive contact and the fifth negative contact respectively.
9. The display module of claim 1,
each of the light source bases includes a plurality of the light source receiving structures;
the deflection angles corresponding to the light sources on each light source base are the same.
10. The display module of claim 1,
the backlight module comprises a plurality of sliding carrier plates;
the sliding carrier plates are located on the same plane.
11. A display device, characterized in that the display device comprises the display module according to any one of claims 1-10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910580459.6A CN110286524B (en) | 2019-06-28 | 2019-06-28 | Display module and display device |
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| CN201910580459.6A CN110286524B (en) | 2019-06-28 | 2019-06-28 | Display module and display device |
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| CN110286524B true CN110286524B (en) | 2021-10-29 |
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| CN115808820A (en) * | 2022-10-21 | 2023-03-17 | 重庆先进光电显示技术研究院 | Display device, control method thereof, and storage medium |
| CN116819829A (en) * | 2023-08-30 | 2023-09-29 | 惠科股份有限公司 | Backlight module and display device |
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| CN110286524A (en) | 2019-09-27 |
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