CN219085244U - Display module and display panel - Google Patents

Abstract

The application discloses a display module and a display panel, wherein the display module comprises a plurality of gratings, a backlight module, a substrate and a plurality of pixel units arranged on the substrate, the gratings are clamped between the pixel units and the backlight module, a first sub-pixel, a second sub-pixel and a third sub-pixel are sequentially arranged along a first direction, the projection of each sub-pixel on the substrate is overlapped with the projection of a grating on the substrate, and the gratings are used for carrying out diffraction and light splitting on white light emitted by the backlight module towards the corresponding sub-pixel along the first direction; one of the first sub-pixel, the second sub-pixel and the third sub-pixel is used as a target sub-pixel, a grating corresponding to the target sub-pixel is a target grating, 0-order diffraction light formed by corresponding to the target grating through light splitting is irradiated to the target sub-pixel, at least one negative-order diffraction light is formed by corresponding to the target grating through light splitting, and at least two kinds of light in red light, green light and blue light are respectively irradiated to the sub-pixels with corresponding colors. Based on the above mode, the utilization rate of the backlight can be improved.

Description

Display module and display panel

Technical Field

The application relates to the technical field of display, in particular to a display module and a display panel.

Background

In the prior art, in an LCD (Liquid Crystal Display ), a single pixel generally includes a plurality of pixel units and a backlight module, and the single pixel includes a plurality of sub-pixels having different color layers, such as a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the backlight module is used to emit white light to all the pixels, so that each color sub-pixel displays light of a corresponding color.

The defect of the prior art is that when white light in the backlight passes through each sub-pixel, only light with one wave band can be transmitted, and light with other wave bands can be absorbed, so that more light energy is wasted, and the utilization rate of the backlight is lower.

Disclosure of Invention

The technical problem that this application mainly solves is how to improve the utilization ratio in a poor light.

In order to solve the technical problem, a first technical scheme adopted in the application is as follows: the display module comprises a plurality of gratings, a backlight module, a substrate and a plurality of pixel units arranged on the substrate, wherein the gratings are clamped between the pixel units and the backlight module, the pixels comprise a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel, the second sub-pixel and the third sub-pixel are sequentially arranged along a first direction, the first direction is parallel to one surface of the substrate, on which the pixels are arranged, the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, the third sub-pixel is a blue sub-pixel, the projection of each sub-pixel on the substrate is overlapped with the projection of a grating on the substrate, and the grating is used for carrying out diffraction and light splitting on white light emitted by the backlight module towards the corresponding sub-pixel along the first direction; one of the first sub-pixel, the second sub-pixel and the third sub-pixel is used as a target sub-pixel, a grating corresponding to the target sub-pixel is a target grating, 0-order diffraction light formed by corresponding to the target grating through light splitting is irradiated to the target sub-pixel, at least one negative-order diffraction light is formed by corresponding to the target grating through light splitting, and at least two kinds of light in red light, green light and blue light are respectively irradiated to the sub-pixels with corresponding colors.

Wherein, in the target grating corresponding to the light splitting to form-1 order diffraction light, at least two kinds of light of red light, green light and blue light are respectively irradiated to the sub-pixels of the corresponding colors.

In the diffraction light of-1 level formed by corresponding light splitting of the target grating, red light, green light and blue light respectively irradiate the sub-pixels of the corresponding colors.

Wherein, in each negative number diffraction light formed by the corresponding light splitting of the target grating, at least two kinds of light of red light, green light and blue light are respectively irradiated to the sub-pixels of the corresponding colors.

In the negative number diffraction light formed by the corresponding light splitting of the target grating, red light, green light and blue light are respectively irradiated to the sub-pixels of the corresponding colors.

Wherein any one sub-pixel of all the pixels is taken as a target sub-pixel.

The substrate is a substrate of a color film substrate, and the color film substrate comprises a plurality of pixel units.

The display module further comprises a liquid crystal layer, a polarizing layer and an alignment film layer, wherein the polarizing layer is positioned on one side of the color film substrate, the alignment film layer is positioned on the other side of the color film substrate, which is far away from the polarizing layer, and the liquid crystal layer is positioned on one side of the alignment film layer, which is far away from the color film substrate.

The grating is provided with a plurality of shading parts and a plurality of light transmission parts along a first direction, and the shading parts and the light transmission parts are periodically arranged along the first direction.

In order to solve the technical problem, a second technical scheme adopted by the application is as follows: a display panel comprises a power module and the display module.

The beneficial effects of this application lie in: in this application, in contrast to the prior art, in this application technical scheme, the display module includes the base plate and sets up a plurality of pixel units, a plurality of grating and backlight module on the base plate, backlight module is launched towards each sub-pixel, every target sub-pixel all corresponds to be configured with corresponding target grating, target grating is located between backlight module and the target sub-pixel, target grating can be used to carry out diffraction beam split with the white light that backlight module launched towards target sub-pixel, in order to shine target sub-pixel with 0 order diffraction light, and make target grating correspond the beam split and form at least one negative number order diffraction light in, at least two kinds of light in red light, green light and the blue light shines corresponding colour sub-pixel respectively. Based on the above manner, since the first-order diffraction light includes a part of light in all wave bands corresponding to the white light, as long as at least two kinds of light in red light, green light and blue light separated by at least one diffraction order are respectively emitted to the sub-pixels in corresponding colors, it can be ensured that at least two kinds of light in a part of white light are utilized by the corresponding sub-pixels, and further the utilization rate of backlight can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a display module of the present application;

FIG. 2 is a second schematic structural diagram of an embodiment of a display module according to the present application;

FIG. 3 is a schematic diagram of an embodiment of a grating of the present application;

FIG. 4 is a diffraction spectroscopy schematic diagram of an embodiment of a grating of the present application;

fig. 5 is a schematic structural diagram of an embodiment of a display panel of the present application.

Reference numerals: the display device comprises a substrate 11, a pixel unit 12, a first sub-pixel 121, a second sub-pixel 122, a third sub-pixel 123, a target sub-pixel 124, a grating 13, a target grating 131, a bump 132, a groove 133, a backlight module 14, a display panel 20, a power module 21 and a display module 22.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustration of the present application, but do not limit the scope of the present application. Likewise, the following embodiments are only some, but not all, of the embodiments of the present application, and all other embodiments obtained by one of ordinary skill in the art without inventive effort are within the scope of the present application.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the present application, it is to be understood that the terms "mounted," "configured," "connected," and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated and defined otherwise; the connection can be mechanical connection or electric connection; may be directly connected or may be connected via an intermediate medium. It will be apparent to those skilled in the art that the foregoing is in the specific sense of this application.

The application firstly discloses a display module, referring to fig. 1 and fig. 2, fig. 1 is one of the schematic structural diagrams of an embodiment of the display module of the application, fig. 2 is the second schematic structural diagram of an embodiment of the display module of the application, as shown in fig. 1 and fig. 2, the display module comprises a substrate 11, a plurality of pixel units 12, a plurality of gratings 13 and a backlight module 14, wherein the plurality of pixel units 12 are arranged on the substrate 11.

The pixel unit 12 includes a first sub-pixel 121, a second sub-pixel 122, and a third sub-pixel 123, where the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 are sequentially disposed along a first direction D1, the first direction D1 is parallel to a surface of the substrate 11 on which the pixel unit 12 is disposed, the first sub-pixel 121 is a red sub-pixel, the second sub-pixel 122 is a green sub-pixel, the third sub-pixel 123 is a blue sub-pixel, a projection of each sub-pixel on the substrate 11 overlaps with a projection of a grating 13 on the substrate 11, and the grating 13 is used to diffract and split white light emitted by the backlight module 14 toward the corresponding sub-pixel along the first direction D1.

One of the first subpixel 121, the second subpixel 122, and the third subpixel 123 serves as a target subpixel 124, a grating corresponding to the target subpixel 124 is a target grating 131, 0-order diffracted light formed by corresponding light splitting of the target grating 131 is irradiated to the target subpixel 124, and at least two of red light, green light, and blue light are respectively irradiated to the corresponding color subpixels in at least one negative-order diffracted light formed by corresponding light splitting of the target grating 131.

Specifically, the substrate 11 may be an array substrate, or a substrate of a color film substrate, which is not limited herein.

For example, each sub-pixel in the pixel unit 12 may be specifically formed by a filter with a corresponding color in the color filter substrate, and the filters with the colors may form the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 distributed in an array or other distribution.

Referring to fig. 3, fig. 3 is a schematic structural diagram of an embodiment of a grating of the present application, as shown in fig. 3, a plurality of protrusions and a plurality of grooves of the grating are periodically arranged along a first direction D1, the width of the protrusions along the first direction D1 is a, the width of the grooves along the first direction D1 is b, D is the sum of a and b, and the incident angle of the incident light and the exit angle of the exit light of the grating can be adjusted by adjusting a and b, so that the distance between the diffracted light of each stage obtained by light splitting of the grating is adjusted.

Referring to fig. 4, fig. 4 is a diffraction spectrum diagram of an embodiment of the grating of the present application, as shown in fig. 4, R is red light, G is green light, B is blue light, W is white light, and each diffraction pattern corresponds to the distribution of red light, green light and blue light in the diffracted light.

Each of the gratings 13 may split the white light emitted from the backlight module 14 toward the sub-pixel at the corresponding position along the first direction D1, and make the 0 th order diffracted light in the split light emitted toward the sub-pixel at the corresponding position, so that the light of the wavelength band matched with the sub-pixel at the corresponding position in the 0 th order diffracted light passes through the sub-pixel, thereby making use of the light passing through the sub-pixel, and also make the light of at least two wavelength bands in at least one group of negative order diffracted light pass through the sub-pixel of the corresponding color, for example, make the red light in one group of negative order diffracted light pass through the red sub-pixel and the blue light pass through the blue sub-pixel, thereby making use of both the red light and the blue light in the group of negative order diffracted light, and improving the backlight utilization rate.

In the present embodiment, the red sub-pixel, the green sub-pixel, and the blue sub-pixel are sequentially arranged along the first direction D1, and the lights of the negative-order diffracted lights are also sequentially arranged along the first direction, so that at least two colors of lights of at least one negative-order diffracted light can pass through the sub-pixels of the corresponding colors at the same time, and at least one of the positive-order diffracted lights corresponding to the negative-order diffracted light passes through the sub-pixels of the corresponding colors at the same time. Similarly, if the green sub-pixel, the blue sub-pixel and the red sub-pixel are sequentially arranged along the first direction D1, at least two colors of light in at least one positive-order diffracted light can pass through the sub-pixels of the corresponding colors at the same time, and at least one color of light in the corresponding negative-order diffracted light can pass through the sub-pixels of the corresponding colors.

For example, as shown in fig. 2, red light a in the first-order diffracted light obtained by the light splitting of the target grating 131 is emitted to a red sub-pixel, green light B is emitted to a green sub-pixel, and blue light C is emitted to a blue sub-pixel, so that at least two bands of light in the first-order diffracted light corresponding to a part of backlight are utilized, and the utilization rate of the backlight is improved.

In contrast to the prior art, in the technical solution of the present application, the display module includes a substrate, and a plurality of pixel units, a plurality of gratings and a backlight module disposed on the substrate, the backlight module emits towards each sub-pixel, each target sub-pixel 124 is correspondingly configured with a corresponding target grating 131, the target grating 131 is located between the backlight module and the target sub-pixel 124, the target grating 131 can be used to diffract the white light emitted from the backlight module towards the target sub-pixel 124, so as to irradiate the 0 th diffraction light to the target sub-pixel 124, and make the target grating 131 correspondingly split light into at least one negative diffraction light, and at least two light of red light, green light and blue light respectively irradiate to the sub-pixel of corresponding color. Based on the above manner, since the first-order diffraction light includes a part of light in all wave bands corresponding to the white light, as long as at least two kinds of light in red light, green light and blue light separated by at least one diffraction order are respectively emitted to the sub-pixels in corresponding colors, it can be ensured that at least two kinds of light in a part of white light are utilized by the corresponding sub-pixels, and further the utilization rate of backlight can be improved.

In one embodiment, at least two of red light, green light, and blue light are respectively irradiated to the respective color sub-pixels in the-1 st order diffracted light formed by the corresponding light splitting of the target grating 131.

Specifically, in the diffracted light of each level of grating, the light intensity corresponding to the diffracted light of the 0 level is stronger, so that at least two kinds of light of red light, green light and blue light in the diffracted light of the-1 level are respectively irradiated to the sub-pixels of the corresponding colors, most of light energy in the light of the grating can be ensured not to be wasted, and the utilization rate of backlight is improved.

Alternatively, in the-1 st order diffracted light formed by the corresponding light splitting of the target grating 131, red light, green light, and blue light are respectively irradiated to the sub-pixels of the corresponding colors.

Specifically, of the-1 st order diffracted light, red light is irradiated to the red sub-pixel, blue light is irradiated to the blue sub-pixel, and green light is irradiated to the green sub-pixel.

The red light, the green light and the blue light in the-1-level diffraction light are utilized by the corresponding sub-pixels, and the light energy contained in the-1-level diffraction light is higher than that of other diffraction orders (except for 0 level and 1 level), so that the utilization rate of backlight can be further improved based on the mode.

In one embodiment, at least two of red light, green light, and blue light are respectively irradiated to the corresponding color sub-pixels in each negative order diffracted light formed by the corresponding light splitting of the target grating 131.

Specifically, at least two kinds of light in red light, green light and blue light in each negative-order diffracted light formed by corresponding light splitting of the target grating 131 are respectively irradiated to the sub-pixels of the corresponding colors, so that most of light energy in the light split by the grating can be ensured not to be wasted, and the utilization rate of backlight is improved.

Alternatively, in each negative-order diffracted light formed by the corresponding light splitting of the target grating 131, red light, green light, and blue light are respectively irradiated to the sub-pixels of the corresponding colors.

Specifically, in each order of diffracted light, red light is irradiated to the red sub-pixel, blue light is irradiated to the blue sub-pixel, and green light is irradiated to the green sub-pixel.

The red light, the green light and the blue light in each level of diffracted light are utilized by the corresponding sub-pixels, and the utilization rate of the backlight can be further improved based on the mode.

In one embodiment, any one of the sub-pixels in all of the pixel units 12 is taken as the target sub-pixel 124.

Specifically, each sub-pixel in all the pixel units 12 may be the target sub-pixel 124, that is, the grating 13 at the position corresponding to each sub-pixel, and the above-mentioned diffraction beam splitting may be performed on the white light emitted by the backlight to the sub-pixel, so as to improve the utilization rate of the partial backlight corresponding to the sub-pixel.

In an embodiment, the substrate 11 may be a substrate of a color film substrate, and the color film substrate includes a plurality of pixel units 12.

Specifically, the pixel unit 12 includes a plurality of sub-pixels, and each sub-pixel may specifically refer to a filter with a corresponding color on the color film substrate, that is, each sub-pixel in the pixel unit 12 may specifically be respectively formed by a filter with a corresponding color in the color film substrate, and each color filter may form a first sub-pixel 121, a second sub-pixel 122, and a third sub-pixel 123 distributed in an array or other distribution.

The first subpixel 121 may include a red filter, the second subpixel 122 may include a green filter, and the third subpixel 123 may include a blue filter.

Optionally, the display module may further include a liquid crystal layer, a polarizing layer, and an alignment film layer, where the polarizing layer is located on one side of the color film substrate, and the alignment film layer is located on the other side of the color film substrate away from the polarizing layer, and the liquid crystal layer is located on one side of the alignment film layer away from the color film substrate.

Specifically, the display module may further include at least one of a liquid crystal layer, a polarizing layer, and an alignment film layer.

In an embodiment, the grating has a plurality of light shielding portions and a plurality of light transmitting portions, and the light shielding portions and the light transmitting portions are periodically arranged along the first direction D1.

Specifically, the grating may be a glass member or a metal member, which may be specifically determined according to practical requirements, and is not limited herein.

Alternatively, in the case where the grating is a glass member, as shown in fig. 3, the grating includes a plurality of protrusions 132 and a plurality of grooves 133 disposed along a first direction, the protrusions 132 and the grooves 133 are periodically arranged along a first direction D1, and the periodic and alternating arrangement of the protrusions 132 and the grooves 133 can form a structure in which the light shielding portions and the light transmitting portions are periodically and alternately arranged, where the protrusions 132 can play a role in blocking light transmission, and the grooves 133 can play a role in making light transmission.

Specifically, the bumps 132 and the grooves 133 are periodically arranged in the first direction D1 according to the bump 132-groove 133-bump 132, the grooves 133 correspond to the light-transmitting areas of the grating, and the bumps correspond to the light-opaque areas of the grating.

Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of the display panel of the present application, as shown in fig. 5, the display panel 20 includes a power module 21 and a display module 22, and the display module 22 may be the display module described in any of the foregoing embodiments, which is not repeated herein.

In this application, in contrast to the prior art, in this application technical scheme, the display module includes the base plate and sets up a plurality of pixel units, a plurality of grating and backlight module on the base plate, backlight module is launched towards each sub-pixel, every target sub-pixel all corresponds to be configured with corresponding target grating, target grating is located between backlight module and the target sub-pixel, target grating can be used to carry out diffraction beam split with the white light that backlight module launched towards target sub-pixel, in order to shine target sub-pixel with 0 order diffraction light, and make target grating correspond the beam split and form at least one negative number order diffraction light in, at least two kinds of light in red light, green light and the blue light shines corresponding colour sub-pixel respectively. Based on the above manner, since the first-order diffraction light includes a part of light in all wave bands corresponding to the white light, as long as at least two kinds of light in red light, green light and blue light separated by at least one diffraction order are respectively emitted to the sub-pixels in corresponding colors, it can be ensured that at least two kinds of light in a part of white light are utilized by the corresponding sub-pixels, and further the utilization rate of backlight can be improved.

In the description of the present application, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., may be considered as a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device (which can be a personal computer, server, network device, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions). For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.

Claims (10)

1. The display module is characterized by comprising a plurality of gratings, a backlight module, a substrate and a plurality of pixel units arranged on the substrate, wherein the gratings are clamped between the pixel units and the backlight module, the pixel units comprise first sub-pixels, second sub-pixels and third sub-pixels, the first sub-pixels, the second sub-pixels and the third sub-pixels are sequentially arranged along a first direction, the first direction is parallel to one surface of the substrate on which the pixel units are arranged, the first sub-pixels are red sub-pixels, the second sub-pixels are green sub-pixels, the third sub-pixels are blue sub-pixels, the projection of each sub-pixel on the substrate is overlapped with the projection of one grating on the substrate, and the gratings are used for diffracting and splitting white light emitted by the backlight module towards the corresponding sub-pixels along the first direction;

one of the first sub-pixel, the second sub-pixel and the third sub-pixel is used as a target sub-pixel, a grating corresponding to the target sub-pixel is a target grating, 0-order diffracted light formed by corresponding to the target grating through light splitting is irradiated to the target sub-pixel, and at least two kinds of light in red light, green light and blue light are respectively irradiated to the corresponding color sub-pixels in at least one negative-order diffracted light formed by corresponding to the target grating through light splitting.

2. The display module of claim 1, wherein at least two of red light, green light and blue light are respectively irradiated to the sub-pixels of the corresponding colors in the-1 st order diffracted light formed by the corresponding light splitting of the target grating.

3. The display module of claim 2, wherein red light, green light, and blue light are respectively irradiated to the sub-pixels of the corresponding colors in the-1 st order diffracted light formed by the corresponding light splitting of the target grating.

4. The display module of claim 1, wherein at least two of red light, green light and blue light are respectively irradiated to the sub-pixels of the corresponding colors in each negative order diffraction light formed by the corresponding light splitting of the target grating.

5. The display module of claim 4, wherein red light, green light, and blue light are respectively irradiated to the sub-pixels of the corresponding colors in each negative order diffraction light formed by the corresponding light splitting of the target grating.

6. A display module according to any one of claims 1 to 5, wherein any one of the sub-pixels in all the pixels is taken as a target sub-pixel.

7. The display module of any one of claims 1 to 5, wherein the substrate is a substrate of a color film substrate, the color film substrate including a plurality of the pixel units.

8. The display module of claim 7, further comprising a liquid crystal layer, a polarizing layer, and an alignment film layer, wherein the polarizing layer is located on one side of the color film substrate, the alignment film layer is located on the other side of the color film substrate away from the polarizing layer, and the liquid crystal layer is located on the side of the alignment film layer away from the color film substrate.

9. The display module of any one of claims 1 to 5, wherein the grating has a plurality of light shielding portions and a plurality of light transmitting portions along the first direction, the light shielding portions and the light transmitting portions being periodically arranged along the first direction.

10. A display panel comprising a power module and a display module according to any one of claims 1 to 9.

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