Display module, display device and display control method

Abstract

The invention relates to a display module, a display device and a display control method, the display module comprises a shell, a display panel and a light adjusting part, and the shell comprises a containing cavity and a light outlet communicated with the containing cavity; the display panel is arranged in the accommodating cavity, the display panel comprises a substrate and a light-emitting layer, the light-emitting layer is arranged on one side of the substrate, and the light-emitting layer comprises a plurality of sub-pixels which are arranged at intervals; the light adjusting part is arranged on the side, facing the light outlet, of the light emitting layer, the light adjusting part comprises a driving layer and a light adjusting layer which are arranged in a stacked mode, the light adjusting part is provided with a plurality of light adjusting openings penetrating through the thickness direction of the light adjusting part, the light adjusting openings correspond to the sub-pixels, and the driving layer is configured to control the light adjusting layer to adjust the light outlet angle. The embodiment of the invention provides a display module, a display device and a display control method, which can improve the display brightness and resolution of a naked-eye 3D display image of a screen and improve the three-dimensional display effect.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display module, a display device and a display control method. Background Art

[0002] Autostereoscopy is a general term for technologies that achieve stereoscopic visual effects without the help of external tools such as polarized glasses. Representative technologies of this type include light barrier technology and cylindrical lens technology.

[0003] The current technical principle of slit-type liquid crystal grating is to add a slit-type grating in front of the screen. When the image that should be seen by the left eye is displayed on the LCD screen, the opaque stripes will block the right eye; similarly, when the image that should be seen by the right eye is displayed on the LCD screen, the opaque stripes will block the left eye. By separating the visible images of the left eye and the right eye, the viewer can see a 3D image.

[0004] However, the current naked-eye 3D display images will cause a large loss of screen display brightness and a decrease in resolution due to the setting of gratings or lenses, resulting in poor display effects and affecting the user's visual experience. Summary of the invention

[0005] The embodiments of the present invention provide a display module, a display device and a display control method, which can increase the display brightness and resolution of naked-eye 3D display images on the screen and improve the three-dimensional display effect.

[0006] On the one hand, according to an embodiment of the present invention, a display module is proposed, including a shell, a display panel and a light adjustment member, the light-shielding shell includes a accommodating cavity and a light outlet connected to the accommodating cavity; the display panel is arranged in the accommodating cavity, the display panel includes a substrate and a light-emitting layer, the light-emitting layer is arranged on one side of the substrate, and the light-emitting layer includes a plurality of sub-pixels arranged at intervals; the light adjustment member is arranged on the side of the light-emitting layer facing the light outlet, the light adjustment member includes a stacked driving layer and a dimming layer, the light adjustment member has a plurality of dimming openings running through its own thickness direction, the dimming openings are arranged corresponding to the sub-pixels, and the driving layer is configured to control the dimming layer to adjust the light output angle.

[0007] According to one aspect of the embodiments of the present invention, the light-emitting layer includes a plurality of pixel defining portions and a pixel opening formed by the plurality of pixel defining portions, and the light-emitting layer includes a reflective portion, and the reflective portion covers the side walls of the pixel defining portions to form the pixel opening;

[0008] Preferably, the sub-pixel comprises a first electrode, a second electrode and a light-emitting functional layer stacked in a direction away from the substrate, the pixel defining portion covers an edge of the first electrode and the light-emitting functional layer is located in the pixel opening;

[0009] Preferably, the reflective portion comprises a metal layer, and the metal layer is spaced apart from the first electrode and the second electrode.

[0010] According to one aspect of the embodiments of the present invention, the display panel includes an insulating portion, which is disposed on a side of the reflective portion away from the substrate, and covers the reflective portion;

[0011] Preferably, the insulating portion comprises a transparent material body;

[0012] Preferably, the light-emitting functional layer comprises a light-emitting material layer, and the light-emitting material layer is arranged in the pixel opening and located on a side of the insulating portion away from the substrate;

[0013] Preferably, an electronic layer is provided on the side of the light-emitting material layer and the pixel defining portion facing away from the substrate;

[0014] Preferably, a second electrode is provided on the side of the electronic layer facing away from the substrate;

[0015] Preferably, a hole layer is provided between the light-emitting material layer and the first electrode.

[0016] According to one aspect of the embodiments of the present invention, the second electrode has a plurality of through holes, the orthographic projection of the pixel defining portion on the substrate covers the orthographic projection of the through holes, and at least part of the light emitted by the sub-pixel can be emitted through the through holes.

[0017] According to one aspect of an embodiment of the present invention, the display module further includes a light shielding layer, which is disposed between the display panel and the light adjusting member, and has a plurality of light guide ports running through the light shielding layer, and the light guide ports are disposed corresponding to the sub-pixels and the dimming openings;

[0018] Preferably, the display panel comprises an encapsulation layer, the encapsulation layer is arranged on a side of the light-emitting layer facing away from the substrate, and the light-shielding layer is arranged between the encapsulation layer and the light-adjusting member.

[0019] According to one aspect of an embodiment of the present invention, the display module also includes an optical waveguide, which is arranged at the light outlet and connected to the shell. The optical waveguide and the shell together form a receiving cavity, and the optical waveguide is configured to guide the negative refracted light in the receiving cavity.

[0020] According to one aspect of an embodiment of the present invention, the shell includes a first wall and a second wall arranged opposite to each other in a first direction, the first wall and the second wall extend in the second direction and the extension length of the first wall is less than the extension length of the second wall, the first direction and the second direction intersect, and the optical waveguide is obliquely connected between the first wall and the second wall.

[0021] According to one aspect of an embodiment of the present invention, the display module further includes a detection element, which is disposed on the housing and electrically connected to the driving layer, and the detection element is configured to obtain position information of a human eye;

[0022] Preferably, the detection element is arranged near the light outlet;

[0023] Preferably, the dimming layer includes a liquid crystal layer or a lenticular lens layer.

[0024] In another aspect, a display device is provided according to an embodiment of the present invention, comprising the display module as described above.

[0025] In another aspect, according to an embodiment of the present invention, there is provided a display control method, which is applied to the display module as described above, and includes:

[0026] At time T1, all sub-pixels are controlled to emit light and the driving layers corresponding to all sub-pixels are not operated, so that the display module forms a planar display;

[0027] At time T2, the driving layer corresponding to the sub-pixels alternately arranged in the first part is controlled to work, so that it drives the dimming layer to block the light on the first side and emit it from the second side; at the same time, the driving layer corresponding to the sub-pixels alternately arranged in the second part is controlled to work, so that it drives the dimming layer to block the light on the second side and emit it from the first side;

[0028] At time T3, the driving layer corresponding to the sub-pixels alternately arranged in the first part is controlled to operate so that it drives the dimming layer to block the light on the second side and emit it from the first side; at the same time, the driving layer corresponding to the sub-pixels alternately arranged in the second part is controlled to operate so that it drives the dimming layer to block the light on the first side and emit it from the second side.

[0029] The embodiments of the present invention provide a display module, a display device and a display control method, wherein a display panel is arranged in a housing cavity of a shell, and a light adjustment member is arranged on the light emitting side of the display panel, wherein a driving layer is used to control a dimming layer to adjust the light emitting angle, so that the displayed images in the left and right eyes of the viewer are different, thereby achieving a three-dimensional display effect. At the same time, a shell is arranged around the display panel, and the light shielding performance of the shell is used to enable the emitted light to be better converged to the light outlet of the normal viewing angle for emission, thereby improving the display brightness and resolution of the naked-eye 3D display image on the screen, improving the three-dimensional display effect, and enhancing the user's visual experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Features, advantages, and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0031] Figure 1 is a structural schematic diagram of a display module according to an embodiment of the present invention;

[0032] Figure 2 is a display principle diagram of a display module according to an embodiment of the present invention;

[0033] Figure 3is a schematic structural diagram of another display module according to an embodiment of the present invention;

[0034] Figure 4 is a structural schematic diagram of another display module according to an embodiment of the present invention;

[0035] Figure 5 is a structural schematic diagram of another display module according to an embodiment of the present invention;

[0036] Figure 6 is a structural schematic diagram of another display module according to an embodiment of the present invention;

[0037] Figure 7 is a structural schematic diagram of another display module according to an embodiment of the present invention;

[0038] Figure 8 is a principle diagram of an optical path of an embodiment of the present invention;

[0039] Fig. 9 is a structural schematic diagram of another display module according to an embodiment of the present invention;

[0040] Fig.10 is a structural schematic diagram of another display module according to an embodiment of the present invention;

[0041] Fig.11 It is a flow chart of a display control method according to an embodiment of the present invention.

[0042] Reference numerals:

[0043] 100-display module; 10-housing; 11-accommodating cavity; 12-light outlet; 13-first wall surface; 14-second wall surface; X-first direction; Z-second direction;

[0044] 20-display panel; 21-substrate; 22-light emitting layer; 23-driving circuit layer; 24-sub-pixel;

[0045] 25-pixel defining portion; 26-reflecting portion; 27-insulating portion; 28-encapsulation layer;

[0046] 1-first electrode; 2-second electrode; 3-light-emitting functional layer; 4-through hole; 3a-light-emitting material layer; 3b-electron layer; 3c-hole layer;

[0047] 30-light adjustment member; 31-driving layer; 32-dimming layer; 33-dimming opening;

[0048] 40 - light shielding layer; 41 - light guide port; 50 - optical waveguide component; 60 - detection component.

[0049] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0050] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed in order to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention. In the drawings and the following description, at least part of the known structures and technologies are not shown in order to avoid unnecessary ambiguity of the present invention; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0051] The directional words appearing in the following description are all directions shown in the figures, and do not limit the display module, display device and display control method of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0052] In order to better understand the present invention, Figures 1 to 11 The display module, display device and display control method of the embodiments of the present invention are described in detail.

[0053] See also Figure 1 According to an embodiment of the present invention, a display module 100 is proposed, including a shell 10, a display panel 20 and a light adjustment member 30, the shell 10 includes a accommodating cavity 11 and a light outlet 12 connected to the accommodating cavity 11; the display panel 20 is arranged in the accommodating cavity 11, the display panel 20 includes a substrate 21 and a light emitting layer 22, the light emitting layer 22 is arranged on the substrate 21, and the light emitting layer 22 includes a plurality of sub-pixels 24 arranged at intervals; the light adjustment member 30 is arranged on the side of the light emitting layer 22 facing the light outlet 12, the light adjustment member 30 includes a stacked driving layer 31 and a dimming layer 32, the light adjustment member 30 has a plurality of dimming openings 33 running through the light adjustment member 30, the dimming openings 33 are arranged corresponding to the sub-pixels 24, and the driving layer 31 is configured to control the dimming layer 32 to adjust the light output angle.

[0054] Optionally, the display panel 20 can be an OLED (Organic Light-Emitting Diode) display panel, in which the substrate 21 can be a supporting shading structure, and the light-emitting layer 22 is arranged on the substrate 21. The light-emitting layer 22 has a plurality of spaced-apart sub-pixels 24. The substrate 21 can block the light emitted from the bottom of the sub-pixel 24, thereby reducing the reflected light at the bottom.

[0055] In the above embodiment, a driving circuit layer 23 is provided on the substrate 21, and the driving circuit layer 23 includes a driving circuit. The driving circuit includes a driving device and a signal line, etc. The driving device includes a plurality of thin film transistors (TFTs), capacitors, etc., and the present application does not make any special limitation on this. The plurality of thin film transistors are respectively connected to the plurality of sub-pixels 24, thereby providing a driving signal for the light emission of the sub-pixels 24 to meet different light emission color requirements.

[0056] It is understandable that the sub-pixels 24 may be arranged in an array in the display panel 20 , and the plurality of sub-pixels 24 may be red sub-pixels, green sub-pixels and blue sub-pixels, which emit red, green and blue (RGB) light and mix the three colors to form a color display.

[0057] Optionally, the light adjustment component 30 can be a spatial display structure. The light adjustment component 30 is set on the light output side of the display panel 20 to adjust the angle of the output light to achieve a three-dimensional display function. The light adjustment component 30 can be a grating structure, specifically including a driving layer 31 and a dimming layer 32.

[0058] Optionally, the light adjustment member 30 has a plurality of dimming openings 33 corresponding to the sub-pixels 24. The light emitted by each sub-pixel 24 is adjusted at the dimming opening 33. The dimming layer 32 can be a liquid crystal or a micro cylindrical lens. When a three-dimensional display is required, the driving layer 31 can control the liquid crystal or micro cylindrical lens in the dimming layer 32 to rotate. Rotating to different angles can adjust the light output angle, so that the left and right eyes of the user observe different pictures, thereby achieving a three-dimensional display effect.

[0059] For example, Figure 2 As shown, at time T1, when the driving layer 31 is not working, the left and right eyes of the user can simultaneously observe the 2D image display of the display module 100 with full pixel display effect without loss of resolution and pixel density.

[0060] At time T2, the sub-pixels 24 corresponding to positions A, C, and E are working, and the displayed images there block the left eye, display the right eye display content, and provide it to the right eye for observation; at the same time, the sub-pixels 24 corresponding to positions B, D, and F are working, and the displayed images there block the right eye, display the left eye display content, and provide it to the left eye for observation, thereby realizing three-dimensional display at time T2.

[0061] At time T3, the sub-pixels 24 corresponding to positions A, C, and E are working, and the displayed images there block the right eye, display the left eye display content, and provide it to the left eye for observation; at the same time, the sub-pixels 24 corresponding to positions B, D, and F are working, and the displayed images there block the left eye, display the right eye display content, and provide it to the right eye for observation, thereby realizing three-dimensional display at time T3.

[0062] It can be seen that the T2 and T3 moments each occupy half of the working time under the refresh rate requirement, that is, if the 2D image display is 240Hz, the refresh rate of the 3D image display with full pixel display effect without loss of resolution and pixel density is 120Hz.

[0063] The stacked display panel 20 and the light adjustment member 30 are placed in the accommodating cavity 11 of the shell 10. Optionally, the shell 10 can be coated with black ink to have a shading function. Of course, black shading materials of different materials can also be used, and the present application does not limit this.

[0064] The light emitted by the display panel 20 forms a three-dimensional display effect after being adjusted by the above-mentioned light adjustment member 30. At the same time, the processed light is emitted from the light outlet 12 after passing through the shading of the shell, so that the light converges to the light outlet 12, reducing the scattering of the light at a large viewing angle, forming a brighter three-dimensional display image.

[0065] An embodiment of the present invention provides a display module 100, by disposing a display panel 20 in a accommodating cavity 11 of a shell 10, and disposing a light adjustment member 30 on the light emitting side of the display panel 20, and utilizing a driving layer 31 therein to control a dimming layer 32 to adjust the light emitting angle, so that the displayed images in the left and right eyes of the viewer are different, thereby achieving a three-dimensional display effect. At the same time, a shell 10 is disposed around the display panel 20, and utilizing the light shielding performance of the shell 10, the emitted light can be better converged to the light outlet 12 of the normal viewing angle for emission, thereby improving the display brightness and resolution of the naked-eye 3D display image on the screen, improving the three-dimensional display effect, and enhancing the user's visual experience.

[0066] As an alternative embodiment, see Figure 3 The light emitting layer 22 includes a plurality of pixel defining portions 25 and pixel openings formed by the pixel defining portions 25, and the display panel 20 includes a reflecting portion 26, which covers the side walls of the pixel defining portions 25 and is used to form the pixel openings.

[0067] In order to further improve the extraction of light to increase the display brightness, in this embodiment, a reflective portion 26 is provided on the side wall of the pixel opening formed by the multiple pixel defining portions 25 in the light-emitting layer 22. The reflective portion 26 covers the side wall of the pixel opening. When the sub-pixel 24 emits light, the light emitted by the sub-pixel 24 can be reflected from the large viewing angle to the normal viewing angle, thereby improving the display brightness at the normal viewing angle.

[0068] Optionally, the sub-pixel 24 includes a first electrode 1, a second electrode 2 and a light-emitting functional layer 3 therebetween, the pixel defining portion 25 covers the edge of the first electrode 1 and the light-emitting functional layer 3 is located in the pixel opening, so that a plurality of pixel defining portions 25 enclose a plurality of pixel openings, and a plurality of sub-pixels 24 are correspondingly arranged in the plurality of pixel openings.

[0069] Optionally, the first electrode 1 is an anode, the second electrode 2 is a cathode, and the light-emitting functional layer 3 can use an organic light-emitting material to form different colors of light. The first electrode 1 injects transport holes into the middle light-emitting functional layer 3 and the second electrode 2 injects transport electrons into the light-emitting functional layer 3. After the holes and electrons combine to form excitons in the light-emitting functional layer 3, the organic light-emitting material emits light to obtain different colors of light.

[0070] Specifically, the first electrode 1 is arranged on the driving circuit layer 23, the light-emitting functional layer 3 is arranged on the side of the first electrode 1 away from the driving circuit layer 23, and the second electrode 2 is arranged on the side of the light-emitting functional layer 3 away from the first electrode 1. The first electrode 1 is specifically formed on the side of the driving circuit layer 23 away from the substrate 21, and is electrically connected to the driving circuit in the driving circuit layer 23.

[0071] Optionally, the reflective portion 26 includes a metal layer, and the metal layer is spaced apart from the first electrode 1 and the second electrode 2. The reflective portion 26 can be made of a metal material, such as copper, etc. The present application does not specifically limit the specific material of the reflective portion 26. The light emitted by the sub-pixel 24 can be well reflected at the metal layer, so that the light is reflected to be emitted at a normal viewing angle.

[0072] Taking into account the conductive properties of the metal layer, in order to prevent the metal layer from short-circuiting the first electrode 1 and the second electrode 2 and causing display abnormalities, in this embodiment, the metal layer needs to be spaced apart from the first electrode 1 and the second electrode 2. This ensures the normal display function of the sub-pixel 24 while completing the light reflection at the edge of the pixel opening, thereby improving the overall safety performance.

[0073] An embodiment of the present invention provides a display module 100, which provides a reflective portion 26 on the side wall of the pixel opening where the sub-pixel 24 is located, and utilizes the opaque property of the reflective portion 26 to reflect light at a large viewing angle of the sub-pixel 24, thereby facilitating the extraction of light in the pixel opening, further increasing the brightness of the three-dimensional display, and improving the display effect.

[0074] As an alternative embodiment, see Figure 4 The display panel 20 includes an insulating portion 27 , which is disposed on a side of the reflective portion 26 away from the pixel defining portion 25 , and the insulating portion 27 is disposed to cover the reflective portion 26 .

[0075] In order to enable the reflective portion 26 on the side wall of the pixel opening to reflect light while also avoiding the influence of the reflective portion 26 on the current conduction in the sub-pixel 24, an insulating portion 27 is provided to cover the reflective portion 26 in the present embodiment, thereby insulating and isolating the reflective portion 26 from the first electrode 1, the second electrode 2 and the light-emitting functional layer 3 of the sub-pixel 24.

[0076] Optionally, the insulating part 27 includes a transparent material body, for example, an inorganic transparent insulating material is used, and the insulating part 27 is set to a transparent material. On the basis of using the insulating part 27 to insulate and isolate the reflecting part 26, it does not affect the light extraction of the sub-pixel 24, which is beneficial to the full reflection of the light at the position of the reflecting part 26, and avoids the attenuation of the light brightness.

[0077] Optionally, the light-emitting functional layer 3 includes a light-emitting material layer 3a, which is arranged in the pixel opening and located on the side of the insulating portion 27 facing away from the substrate 21, an electron layer 3b is arranged on the side of the light-emitting material layer 3a and the pixel defining portion 25 facing away from the substrate 21, a second electrode 2 is arranged on the side of the electron layer 3b facing away from the substrate 21, and a hole layer 3c is arranged between the light-emitting material layer 3a and the first electrode 1.

[0078] The luminescent materials in this embodiment can be red luminescent materials, green luminescent materials and blue luminescent materials. Under the action of the first electrode 1, the hole layer 3c can transfer holes to the middle luminescent material layer 3a. Under the action of the second electrode 2, the electron layer 3b can transfer electrons to the middle luminescent material layer 3a. After the holes and electrons combine to form excitons, energy can be provided to the luminescent material layer 3a, prompting the luminescent material layer 3a to generate a predetermined color light, and a color display is formed after multiple sub-pixels 24 emit light and complete color mixing.

[0079] An embodiment of the present invention provides a display module 100, which covers the reflective portion 26 on the side wall of the pixel opening with an insulating portion 27. The insulating properties of the insulating portion 27 can better provide insulating protection for the sub-pixel 24, prevent the reflective portion 26 from interfering with the light emission of the sub-pixel 24, and improve the overall light emission safety performance on the basis of fully extracting the reflected light.

[0080] As an alternative embodiment, see Figure 5 The second electrode 2 has a plurality of through holes 4 , and the orthographic projection of the pixel defining portion 25 on the substrate 21 covers the orthographic projection of the through holes 4 , so that at least part of the light emitted by the sub-pixel 24 can be emitted from the through holes 4 .

[0081] In order to further extract the light of the sub-pixel 24 , in this embodiment, the common second electrode 2 is patterned, that is, a plurality of through holes 4 are provided on the second electrode 2 . The positions of the through holes 4 are conducive to extracting the light of the sub-pixel 24 .

[0082] In this embodiment, the through hole 4 provided on the second electrode 2 corresponds to the pixel defining portion 25 at the bottom. The second electrode 2 corresponding to the sub-pixel 24 can provide electrons, which are combined with the holes provided by the first electrode 1 to emit light in the light-emitting material layer in the middle of the sub-pixel 24. The emitted light can be emitted through the through hole 4 of the second electrode 2, thereby improving the light extraction rate and reducing the shielding of the light by the second electrode 2.

[0083] An embodiment of the present invention provides a display module 100, in which the second electrode 2 is patterned so that a plurality of through holes 4 are provided on the second electrode 2. The light emitted by the sub-pixel 24 can be emitted through the through holes 4, which is beneficial for the light to be emitted through the second electrode 2. On the basis of realizing three-dimensional display by using the optical adjustment component 30, the display brightness is further improved and the light emission effect is improved.

[0084] As an alternative embodiment, see Figure 6 The display module 100 also includes a light shielding layer 40, which is arranged between the display panel 20 and the light adjustment member 30. The light shielding layer 40 has a plurality of light guide ports 41 running through the light shielding layer 40, and the light guide ports 41 are arranged corresponding to the sub-pixels 24 and the dimming openings 33.

[0085] Optionally, the shading layer 40 can be a black matrix layer, and a plurality of light guide ports 41 corresponding to the sub-pixels 24 are arranged on the shading layer 40. The light emitted by the sub-pixels 24 is emitted at the light guide port 41, and mixed after emission, thereby obtaining a display of different colors of light. The shading layer 40 can absorb excess light and prevent reflection of external light, thereby forming a better mixing effect.

[0086] Optionally, the display panel 20 includes an encapsulation layer 28, which is arranged on the side of the light-emitting layer 22 away from the substrate 21, and the shading layer 40 is arranged between the encapsulation layer 28 and the light adjustment member 30. After the light passes through the light adjustment member 30, the light is adjusted by the dimming layer 32 to achieve a three-dimensional display. Then, at the light guide port 41 passing through the shading layer 40, excess light is filtered out to avoid crosstalk between adjacent color lights.

[0087] Finally, the light is emitted through the top encapsulation layer 28 to form a three-dimensional display with higher brightness and resolution. The encapsulation layer 28 covers the bottom film layer of the display panel 20. Optionally, the encapsulation layer 28 can be a composite film layer composed of an organic film layer and an inorganic film layer. The present application does not limit this. The encapsulation layer 28 can isolate the external water and oxygen environment from entering the interior of the display panel 20, forming a reliable isolation protection for the whole, thereby ensuring the effectiveness of the three-dimensional display.

[0088] An embodiment of the present invention provides a display module 100, which provides a shading layer 40 in the module and uses a light guide port 41 of the shading layer 40 to filter the outgoing light, thereby reducing crosstalk between adjacent color lights and preventing the influence of reflected light on normal display. On the basis of forming a three-dimensional display, the display brightness and resolution are further improved, thereby improving the display effect.

[0089] As an alternative embodiment, see Figure 7 The display module 100 also includes an optical waveguide 50, which is disposed at the light outlet 12 and connected to the housing 10. The optical waveguide 50 and the housing 10 together enclose a receiving cavity 11, and the optical waveguide 50 is configured to guide the negatively refracted light in the receiving cavity 11.

[0090] The optical waveguide 50 is a medium device that guides the propagation of light waves therein, also known as a dielectric optical waveguide. The optical waveguide 50 is a guiding structure for transmitting electromagnetic waves of optical frequency, which is composed of a light transparent medium (such as quartz glass) and can refract the light several times. The transmission principle of the optical waveguide 50 is different from that of a metal closed waveguide. At the interface of media with different refractive indices, the total reflection phenomenon of electromagnetic waves causes the light waves to be confined to the waveguide and a limited area around it for propagation.

[0091] In this embodiment, the negative refraction light formed by the optical waveguide 50 is used for adjustment. Figure 8 As shown, the so-called negative refraction light means that when the light wave is incident from a material with a positive refractive index to the interface of a material with a negative refractive index, the refraction of the light wave is opposite to the conventional refraction, and the incident wave and the refracted wave are on the same side of the normal direction of the interface. At this time, the refracted light is a negative refraction light.

[0092] The optical waveguide 50 is arranged at the light outlet 12 of the shell 10. The refractive performance of the optical waveguide 50 is utilized to refract the light passing through the optical adjustment member 30, so that different images enter the left and right eyes of the user respectively through negative refraction, which can meet the viewing needs of users at different positions and angles, and realize the floating effect of three-dimensional display.

[0093] An embodiment of the present invention provides a display module 100, which realizes suspended naked-eye stereoscopic display by disposing an optical waveguide 50 at the light outlet 12 of the housing 10 and utilizing the principle of optical waveguide, thereby further improving the display effect and satisfying the suspended naked-eye stereoscopic display of a single person at multiple angles.

[0094] As an alternative embodiment, see Fig. 9 The shell 10 includes a first wall 13 and a second wall 14 that are oppositely arranged in a first direction X. The first wall 13 and the second wall 14 extend in a second direction Z, and the extension length of the first wall 13 is less than the extension length of the second wall 14. The first direction X and the second direction Z intersect, and the optical waveguide 50 is obliquely connected between the first wall 13 and the second wall 14.

[0095] Optionally, the first direction X may be the length direction of the shell 10, and the second direction Z may be the height direction of the shell 10. In this embodiment, the height of the first wall 13 of the shell 10 is less than the height of the second wall 14, so that the light outlet 12 of the shell 10 is an inclined opening, thereby obliquely connecting the optical waveguide 50 between the first wall 13 and the second wall 14.

[0096] Of course, the first wall 13 and the second wall 14 can also be set flush according to actual viewing needs. The present application does not specifically limit the relative height relationship between the first wall 13 and the second wall 14. The first wall 13 and the second wall 14 are designed with a height difference, and the inclined optical waveguide 50 can be used to perform negative refraction of light, so that the user can achieve viewing of the suspended naked-eye stereoscopic display by looking straight at the wall.

[0097] An embodiment of the present invention provides a display module 100, in which the height difference between the first wall 13 and the second wall 14 of the shell 10 is designed so that the optical waveguide 50 is obliquely connected between the two and covers the light outlet 12. The negative refraction light of the optical waveguide 50 is utilized to facilitate the user's naked eye viewing of the suspended stereoscopic display, thereby meeting the user's needs for different viewing angles.

[0098] As an alternative embodiment, see Fig.10 The display module 100 further includes a detection member 60 , which is disposed on the housing 10 and electrically connected to the driving layer 31 , and the detection member 60 is configured to obtain position information of a human eye.

[0099] Optionally, the detection element 60 can be a human eye detection structure, for example, an infrared sensor. By using the detection element 60, the user's eye position can be quickly captured, and then the angle adjustment of the dimming layer 32 can be controlled by adjusting the driving layer 31 to adjust the angle of the outgoing light of the sub-pixel 24 until the corresponding light is incident on the left and right eyes of the user respectively, thereby achieving a three-dimensional display effect.

[0100] Optionally, the detection component 60 is arranged at the light outlet 12, and can be further arranged at the top of the shell 10, so that the detection component 60 obtains a wider detection space, which is convenient for capturing the position of the human eye in a large range, making the detection angle range more sufficient, and then more specifically controlling and adjusting the light adjustment component 30 to ensure the viewing effect of the user at different angles.

[0101] An embodiment of the present invention provides a display module 100. By setting a detection component 60 in the module, the detection component 60 can be used to quickly and effectively capture the position of the human eye, so that the light adjustment component 30 can be controlled to rotate and adjust in time. The angle deflection is more precise, so that light can be more targetedly incident on the human eyes at different angles, thereby meeting the user's multi-angle three-dimensional viewing needs and improving the display effect.

[0102] As an optional embodiment, the dimming layer 32 includes a liquid crystal layer or a cylindrical lens layer.

[0103] Optionally, the light adjustment element 30 can be constructed by a slit-type liquid crystal grating, in which the dimming layer 32 can be a liquid crystal layer or a cylindrical lens layer, and the driving layer 31 can be used to twist the liquid crystal to achieve angle adjustment of the liquid crystal. The light adjustment element 30 can also be constructed by a cylindrical lens, and the driving layer 31 is used to move and deform the cylindrical lens microstructure, and can also adjust the angle of the light passing through.

[0104] The embodiment of the present invention provides a display module 100, which can adjust the angle of the light emitted by the sub-pixel 24 by setting the dimming layer 32 as a liquid crystal layer or a cylindrical lens layer, so that the pictures seen by the left and right eyes of the user are different, which is conducive to achieving a three-dimensional display effect.

[0105] According to an embodiment of the present invention, a display device is provided, including the display module 100 as described above.

[0106] The display device in the present application can be any device that needs to realize the floating naked-eye stereoscopic display function, and the display module 100 in the above-mentioned various embodiments can be used to achieve a three-dimensional display effect. The present application does not specifically limit the specific type of the display device.

[0107] See also Fig.11According to an embodiment of the present invention, a display control method is provided, which is applied to the display module 100 as described above, and includes:

[0108] S1, at time T1, all sub-pixels 24 are controlled to emit light and the driving layers 31 corresponding to all sub-pixels 24 are not operated, so that the display module 100 forms a planar display;

[0109] S2, at time T2, the driving layer 31 corresponding to the sub-pixels 24 of the first part that are alternately arranged at intervals is controlled to work, so that it drives the dimming layer 32 to block the light on the first side and emit it from the second side; at the same time, the driving layer 31 corresponding to the sub-pixels 24 of the second part that are alternately arranged at intervals is controlled to work, so that it drives the dimming layer 32 to block the light on the second side and emit it from the first side;

[0110] S3. At time T3, the driving layer 31 corresponding to the sub-pixels 24 alternately arranged in the first part is controlled to operate so that it drives the dimming layer 32 to block the light on the second side and emit it from the first side; at the same time, the driving layer 31 corresponding to the sub-pixels 24 alternately arranged in the second part is controlled to operate so that it drives the dimming layer 32 to block the light on the first side and emit it from the second side.

[0111] The embodiments of the present invention provide a display module, a display device and a display control method, wherein a display panel is arranged in a housing cavity of a shell, and a light adjustment member is arranged on the light emitting side of the display panel, wherein a driving layer is used to control a dimming layer to adjust the light emitting angle, so that the displayed images in the left and right eyes of the viewer are different, thereby achieving a three-dimensional display effect. At the same time, a shell is arranged around the display panel, and the light shielding performance of the shell is used to enable the emitted light to be better converged to the light outlet of the normal viewing angle for emission, thereby improving the display brightness and resolution of the naked-eye 3D display image on the screen, improving the three-dimensional display effect, and enhancing the user's visual experience.

[0112] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display module, characterized in that: include: A housing, comprising a receiving cavity and a light outlet communicated with the receiving cavity; A display panel is disposed in the accommodating cavity, the display panel comprises a substrate and a light-emitting layer, the light-emitting layer is disposed on one side of the substrate, and the light-emitting layer comprises a plurality of sub-pixels disposed at intervals; The light adjustment member is arranged on the side of the light emitting layer facing the light outlet, and the light adjustment member includes a driving layer and a dimming layer which are stacked, and the light adjustment member has a plurality of dimming openings which penetrate the light adjustment member in the thickness direction thereof, and the dimming openings are arranged corresponding to the sub-pixels, and the driving layer is configured to control the dimming layer to adjust the light outlet angle.

2. The display module according to claim 1, characterized in that: The light-emitting layer includes a plurality of pixel defining portions and a pixel opening formed by the pixel defining portions, and the light-emitting layer includes a reflecting portion, and the reflecting portion covers the side walls of the pixel defining portions for forming the pixel opening by enclosing the pixel defining portions; Preferably, the sub-pixel comprises a first electrode, a second electrode and a light-emitting functional layer therebetween which are stacked in a direction away from the substrate, the pixel defining portion covers an edge of the first electrode and the light-emitting functional layer is located in the pixel opening; Preferably, the reflective portion comprises a metal layer, and the metal layer is spaced apart from the first electrode and the second electrode.

3. The display module according to claim 2, characterized in that: The display panel comprises an insulating portion, the insulating portion is arranged on a side of the reflective portion away from the substrate, and the insulating portion covers the reflective portion; Preferably, the insulating portion comprises a transparent material body; Preferably, the light-emitting functional layer comprises a light-emitting material layer, and the light-emitting material layer is arranged in the pixel opening and located on a side of the insulating portion away from the substrate; Preferably, an electronic layer is provided on the side of the light-emitting material layer and the pixel defining portion facing away from the substrate; Preferably, a second electrode is provided on a side of the electronic layer facing away from the substrate; Preferably, a hole layer is provided between the light-emitting material layer and the first electrode.

4. The display module according to claim 2, characterized in that: The second electrode has a plurality of through holes, the orthographic projection of the pixel defining portion on the substrate covers the orthographic projection of the through holes, and at least part of the light emitted by the sub-pixel can be emitted through the through holes.

5. The display module according to claim 1, characterized in that: The display module further includes a light shielding layer, which is disposed between the display panel and the light adjusting member, and has a plurality of light guide ports penetrating the light shielding layer, and the light guide ports are disposed corresponding to the sub-pixels and the dimming openings; Preferably, the display panel comprises an encapsulation layer, the encapsulation layer is arranged on a side of the light-emitting layer away from the substrate, and the light-shielding layer is arranged between the encapsulation layer and the light-adjusting member.

6. The display module according to claim 1, characterized in that: The display module further includes an optical waveguide, which is disposed at the light outlet and connected to the housing. The optical waveguide and the housing together enclose the accommodating cavity, and the optical waveguide is configured to guide negatively refracted light in the accommodating cavity.

7. The display module according to claim 6, characterized in that: The shell includes a first wall surface and a second wall surface that are arranged opposite to each other in a first direction, the first wall surface and the second wall surface extend in the second direction, and the extension length of the first wall surface is smaller than the extension length of the second wall surface, the first direction and the second direction intersect, and the optical waveguide component is obliquely connected between the first wall surface and the second wall surface.

8. The display module according to claim 1, characterized in that: The display module further includes a detection element, which is disposed on the housing and electrically connected to the driving layer, and is configured to obtain position information of a human eye; Preferably, the detection element is arranged near the light outlet; Preferably, the dimming layer includes a liquid crystal layer or a cylindrical lens layer.

9. A display device, characterized in that: Comprising the display module as claimed in any one of claims 1 to 8.

10. A display control method, applied to the display module according to any one of claims 1 to 8, characterized in that: include: At time T1, all the sub-pixels are controlled to emit light and the driving layers corresponding to all the sub-pixels are not operated, so that the display module forms a planar display; At time T2, the driving layer corresponding to the sub-pixels alternately arranged in the first part is controlled to work, so that it drives the dimming layer to block the light on the first side and emit it from the second side; at the same time, the driving layer corresponding to the sub-pixels alternately arranged in the second part is controlled to work, so that it drives the dimming layer to block the light on the second side and emit it from the first side; At time T3, the driving layer corresponding to the sub-pixels alternately arranged in the first part is controlled to operate so as to drive the dimming layer to block the light on the second side and emit it from the first side; at the same time, the driving layer corresponding to the sub-pixels alternately arranged in the second part is controlled to operate so as to drive the dimming layer to block the light on the first side and emit it from the second side.

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