CN117784465B - Reflective display device - Google Patents
Reflective display device Download PDFInfo
- Publication number
- CN117784465B CN117784465B CN202311863172.7A CN202311863172A CN117784465B CN 117784465 B CN117784465 B CN 117784465B CN 202311863172 A CN202311863172 A CN 202311863172A CN 117784465 B CN117784465 B CN 117784465B
- Authority
- CN
- China
- Prior art keywords
- reflective display
- light source
- module
- light
- display module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a reflective display device, which comprises a reflective display module, an external light source module and a matching piece, wherein the reflective display module comprises a reflective display panel, the external light source module comprises a support body and a plurality of groups of light bars arranged on the surface of the support body opposite to the surface of the reflective display module, and the reflective display module is connected with the external light source module through the matching piece. The external light source is controlled to be relative to the position of the reflective display module and the illumination intensity of the light bar, so that the reflective display module can realize the light supplementing effect suitable for human eyes, and the uniformity of the light supplementing can be at least more than 70%. The reflective display device can replace the use of a light guide plate with high cost by arranging an external light source which can be used as a support body, so that the manufacture cost and the occupied space of the display device are saved while the definition and the display uniformity of pictures are ensured.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to a reflective display device.
Background
With the development of society, people have become more and more free from computers and display screens. The existing computer display technology utilizes a built-in backlight module to illuminate a screen to display the content of a display, and the lighting system of the built-in backlight module of the display irradiates light rays to eyes of people when illuminating the screen for people to read, and blue light energy is larger, so that eyes are greatly damaged after long-time use, and various eye diseases can even occur. In addition, some eye patients may experience discomfort such as dizziness and dim eyesight when using a display with blue light energy.
Reflective displays are favored in the market due to the advantages of low power consumption, soft and non-glare reflected light, etc., and common reflective displays include electronic ink displays, cholesteric liquid crystal displays, LCD reflective displays, etc. Since most reflective displays rely on ambient light to display images, the reflective displays have poor display effect when the ambient light intensity is insufficient. In order to improve the display definition and uniformity of the reflective display, a light guide plate is generally used in the prior art to enhance the reflected light of the display, but the presence of the light guide plate easily causes the image quality of the reflective display to be reduced, and the manufacturing cost of the light guide plate is also higher.
In summary, it is necessary to provide a reflective display device with an external light source structure that occupies a small space, has low cost, and does not affect the display effect of the display, so as to solve the display problem of the reflective display in the case of insufficient ambient light.
Disclosure of Invention
In view of this, the present invention provides a reflective display device.
A reflective display device comprises a reflective display module, an external light source module and a matching piece; the reflective display module comprises a reflective display panel; the external light source module comprises a support body and a plurality of groups of light bars arranged on the surface of the support piece opposite to the reflective display module; the external light source module is connected with the reflective display module through the matching piece, the lamp strip which is farthest from the reflective display module in the external light source module is used as a first group of lamp strips, and the position relation between any two adjacent groups of lamp strips in the plurality of groups of lamp strips relative to the reflective display module meets the following formula I:
In the formula I, I is an integer not less than 1, a point is optionally selected on an intersection line of a plane where the external light source module is located and a plane where the reflective display module is located, a perpendicular line perpendicular to the intersection line is made in the plane where the reflective display module is located through the point, x i is a maximum linear distance between an irradiation area formed by an ith group of light bars on the reflective display panel and the matching piece in the direction of the perpendicular line, x i+1 is a maximum linear distance between an irradiation area formed by an ith+1 group of light bars on the reflective display panel and the matching piece in the direction of the perpendicular line, and h i is a vertical height of the ith group of light bars relative to the reflective display module.
In some embodiments of the present invention, the external light source module may include a plurality of groups of light bars that are parallel to each other or not parallel to each other, and a positional relationship between the plurality of groups of light bars formed on the support body may be adjusted according to a relative position between the reflective display module and the external light source module and a light supplementing uniformity to be achieved by the present invention, which is not strictly limited herein.
In some embodiments of the present invention, the size relationship between x of any two adjacent light bars in the plurality of groups of light bars is: x i≥xi+1. In the invention, the irradiation areas formed by any two groups of adjacent light bars on the reflective display module can have an overlapping area, and in order to realize resource maximization, the irradiation areas formed by the two groups of adjacent light bars on the reflective display module are not overlapped and the boundaries are overlapped. In some embodiments of the present invention, the mounting manner of the groups of light bars on the support body may be a concealed embedded type and/or an exposed embedded type, or any other mounting manner capable of implementing light filling, which forms an external light source as a whole.
In some embodiments of the invention, the reflective display module may further comprise a housing, which is present as a circuit element and/or a support element of the reflective panel, and the composition of the housing may be adaptively selected within the scope of those skilled in the art.
In some embodiments of the present invention, each set of the light bars may be a "set" of an entire individual light bar, or may be a "set" of at least two individual light bars arranged in a suitable manner, for example, a plurality of individual light bars are arranged in a "linear" shape to form a set of light bars. The structure of each group of light bars can be adjusted according to the actual application requirement, and the invention is not strictly limited.
In some embodiments of the present invention, the support is connected to the mating member, and the mating member is connected to the reflective display module to adjust a relative position between the external light source module and the reflective display module.
In some embodiments of the present invention, the area of the external light source module irradiated to the reflective display panel is not smaller than the reflective display area of the reflective display panel, which needs light supplement.
In some embodiments of the invention, the light exit angle of each set of the light bars satisfies formula II:
In the formula II, theta i is the light emergent angle of the ith group of light bars; the light exit angle here can be understood as: the ith group of light bars can irradiate an included angle formed between the farthest light ray and the nearest light ray of the reflective display module.
In some embodiments of the invention, the relationship between the light exit angle of each set of the light bars and the acute angle between each set of the light bars and the support body satisfies formula III:
in the formula III, delta i is an acute angle formed between the ith group of light bars and the supporting body.
Because the optical path of each group of the light bars is different, the light emergent intensity of each group of the light bars is correspondingly different. Also, the intensity of the outgoing light from each group of the light bars is inversely proportional to the square of the linear distance from each group of the light bars to the reflective display screen body in the direction of the light path, so in some embodiments of the present invention, the relationship of formula IV is satisfied between the illumination intensities of each group of the light bars:
In formula IV, Y n、Ym is the output light intensity of the nth group of light bars and the mth group of light bars, x n、xm is the maximum linear distance between the irradiation area formed by the nth group of light bars and the mth group of light bars on the reflective display panel and the matching piece in the vertical direction, and h n、hm is the vertical height of the nth group of light bars and the mth group of light bars relative to the reflective display panel.
In order to facilitate understanding of the above technical solution, the terms used for orientation are reasonably interpreted herein. For the above mentioned "vertical height" it is to be understood that: when the included angle between the reflective display module and the external light source is not 0 degree, a certain group of light bars parallel to the intersection line of the surface of the reflective display module and the surface of the external light source are taken as outgoing lines, one point on the outgoing lines is optionally taken as a straight line perpendicular to the plane of the reflective display module, and the distance between the central point of any group of light bars and the reflective display module in the straight line direction is the vertical height of any group of light bars relative to the reflective display module. For the above mentioned "vertical" it is to be understood that: perpendicular to the perpendicular object in the same plane.
In some embodiments of the present invention, the external light source module and the reflective display module are movably connected through the matching piece, preferably, by a magnetic attraction effect of the matching piece.
In some embodiments of the present invention, the mating member includes a control module to control the on-off and the light-emitting brightness of the external light source module and/or to provide the external light source module with electric power through the mating member.
In some embodiments of the present invention, the external light source module and the reflective display module may be changed in angle according to requirements. For example, when the reflective display device is used as a table board or a reader, the external light source module can be used as a supporting structure or a side light supplementing source, and an included angle larger than 0 ° and smaller than 180 ° is formed between the external light source module and the reflective display module. At this time, according to the intensity of the ambient light or the display effect of the display panel, the switch and the light output intensity of the light bar can be adjusted by the control component in the matching piece. When the reflective display device needs to be stored, the included angle between the external light source module and the reflective display module is adjusted, so that the storage is easy.
In some embodiments of the present invention, the reflective display module is one of display devices that uses liquid crystal anisotropy to realize display, and specifically, the principle of the reflective display module to realize display is that: the liquid crystal molecules in the liquid crystal layer have different arrangement forms under the action of an electric field, and the different arrangement forms can transmit and/or refract light with different wavelengths, so that display effects with different colors and different brightness are realized. The reflective display module can be an electronic ink screen, a cholesteric liquid crystal screen, an LCD display screen and the like.
In some embodiments of the invention, the reflective display device described above is used as an electronic reader.
The beneficial effects are that: compared with the prior art, according to the method for setting the light bar in the external light source module, when the external light source module is utilized to supplement light to the reflective display module, the uniformity of the in-plane light supplement intensity of the reflective display panel can reach more than 70%, so that the display effect of the reflective display device when the ambient light intensity is insufficient is improved; the external light source module contained in the reflective display device provided by the invention has small occupied space, can be used as a bracket, is easy to store, and expands the application scene of the reflective display device.
Drawings
FIG. 1 is a diagram of a reflective display device when the external light source module is 90 degrees from the reflective display module;
FIG. 2 is a view of the reflective display device when the external light source module and the reflective display module are at 0 degree;
FIG. 3 is a schematic diagram illustrating the working principle of an external light source module in the device shown in FIG. 1;
Fig. 4 is a schematic diagram of a working principle of the external light source module in the reflective display device according to the present invention when an included angle between the external light source module and the reflective display module is not 90 ° (greater than 90 °).
In the figure: 1. a reflective display module; 2. a reflective display panel; 3. fitting (button); 4. an external light source (a plurality of groups of light bars); 5. a support body; 401. a first set of LED light bars.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "parallel," "perpendicular," and the like, do not denote that the components are required to be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel than "perpendicular" and does not mean that the structures must be perfectly parallel, but may be slightly tilted.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, the reflective display device includes a reflective display module 1, an external light source 4, a support body 5 and a matching member 3, where the reflective display module 1 includes a reflective display panel 2, the external light source 4 includes a plurality of groups of light bars (for convenience of understanding and calculation, the following is exemplified by a plurality of groups of light bars parallel to each other, in practical application, the mutual positional relationship between the plurality of groups of light bars may be adaptively adjusted, and is not strictly limited herein), the external light source 4 is disposed on a surface of the support body 5 opposite to the reflective display module, and after the light bars are energized, an irradiation area may be formed on the surface of the reflective display module. The supporting body 5 is connected with the reflective display module 1 through the matching piece 3, so that an included angle (an example of an included angle of 90 ° is taken as an example to illustrate the working principle, but not limited to this, hereinafter) can be formed between the reflective display module 1 and the supporting body 5, and the included angle between the reflective display module 1 and the supporting body 5 can be fixed to a certain specific angle through the matching piece 3, and can also be adjusted through the matching piece 3. The support body 5 and the reflective display module 1 may be arranged at an angle of 0 ° (see fig. 2) or 180 ° or other angles, for example by means of magnetic attraction, which is adjusted according to the requirements of storage and/or carrying. Preferably, the light bars are more convenient, economical and applicable LED light bars, each group of LED light bars can be independently formed by an independent relatively long LED light bar, and also can be formed by connecting a plurality of relatively short LED light bars in series, so that the LED light bars are not limited to the above, and the number of the LED light bars contained between different groups of LED light bars can be the same or different.
Referring to fig. 3, the set of light bars farthest from the reflective display module 1 in the external light source 4 is taken as a first set of light bars, and the positional relationship between any two sets of adjacent light bars included in the external light source 4 and the reflective display module 1 satisfies the formula I:
In the formula I, I is an integer not less than 1, a point is optionally selected on an intersection line of a plane where the external light source module is located and a plane where the reflective display module is located, a perpendicular line perpendicular to the intersection line is made in the plane where the reflective display module is located through the point, x i is a maximum linear distance between an irradiation area formed by the ith group of light bars on the reflective display panel and the matching piece in the direction of the perpendicular line, x i+1 is a maximum linear distance between an irradiation area formed by the (i+1) th group of light bars on the reflective display panel and the matching piece in the direction of the perpendicular line, and h i is a vertical height of the ith group of light bars relative to the reflective display module.
In the invention, the size relation between x of any two groups of adjacent light bars in the external light source 4 is as follows: x i≥xi+1. For example, taking the external light source 4 including 7 groups of LED light bars as the light supplement of the reflective display module 1, the following description specifically describes: the light bar 401 at the end far away from the reflective display module 1 in the external light source 4 is set as a first group of LED light bars, and sequentially counts towards the direction of the reflective display module 1, where x 1＝15cm、h1 =5 cm of the light bar 401 (the parameters can be properly adjusted according to the practical application situation and the required light compensation distance, and the invention is not limited thereto). Substituting the above x 1、h1 into formula I:
The value of x 2 can be calculated as a range value, because h 1＞h2 has x 2 not more than x 1; in this embodiment, in order to reduce the use of the light bars and maximize the light quantity utilization of the light bars, the irradiation areas formed by the first group of light bars 401 and the second group of light bars on the reflective display module 1 are adjusted to be non-overlapping and have overlapping boundaries, and then, as an exemplary illustration, x 2 has a value of 12.5cm.
In order to realize that the area of the reflective display panel 2 requiring light filling is all covered in the illumination area formed by the external light source 4, the light emitting angles of the groups of light bars included in the external light source 4 may be selected. As an exemplary illustration, it is assumed here that the reflective display panel 2 needs full-area light filling, and then, as the light bar 401 with the largest relative height, its irradiation area needs to be covered at least to the end side of the reflective display panel 2 away from the external light source 4. Thus, substituting the value of x 1、x2、h1 above into formula II:
The light exit angle of the light bar 401 can be calculated to be θ 1 =3.37°.
Because the plurality of groups of light bars are mounted on the supporting body 5, the included angle between the light bars and the supporting body 5 also affects the size of the irradiation area of the external light source 4 to the reflective display panel 2, and therefore, the mounting angles of the plurality of groups of light bars in the external light source 4 on the supporting body 5 also need to be determined according to the formula III. For example, in order to maximize the utilization of the irradiation area formed by the external light source 4 on the reflective display panel 2 (i.e., the overlapping of the edges of the irradiation areas formed by two adjacent groups of light bars on the reflective display panel 2) on the premise that the light of the light bar 401 can be irradiated onto the end side of the reflective display panel 2 far from the external light source 4, the above-mentioned position parameter x 1、h1 of the light bar 401 and the light-emitting angle θ 1 thereof are substituted into formula III:
The acute angle δ 1 =20.12° formed by the light bar 401 and the support body 5 can be calculated.
Also, there are: in this example, the edges of the illumination areas formed on the reflective display panel 2 by two adjacent sets of light bars are defined to coincide, and then x 2 of the second set of light bars (not labeled in the figure) is equal to x 1 of the first set of light bars 401. In order to make full use of the space of the support 5 and meet the requirement of the light compensation distance required by the reflective display module 1 on the overall height of the external light source 4 under the condition that the irradiation area formed by the external light source 4 is maximized, the distance between any two adjacent groups of light bars contained in the external light source 4 is set to be 0.2cm, and at this time, the heights h i of the light bars relative to the reflective display module 1 can be calculated according to the height h 1 =5 cm of the light bars 401. According to x 2 and h 2 of the second group of light bars obtained above, the light emitting angle and the mounting angle of the second group of light bars can be obtained by using the formulas I, II and III based on the preconditions given above. Similarly, it is not difficult to find the positions of the light bars on the support 5 and their light exit angles, and specific data are given in table 1:
Table 1 positional parameters of the light bars of fig. 3
It should be noted that the above data are all calculated based on "maximizing the space of the support 5 and the irradiation area formed on the reflective display panel 2 by the external light source 4", and are not limiting to the implementation conditions of the present invention.
When the external light source 4 works as a light supplementing source (the dihedral angle between the plane of the external light source 4 and the plane of the reflective display module is greater than 0 ° and less than 180 °), if the dihedral angle between the external light source 4 and the reflective display module 1 is not 90 ° (as shown in fig. 4), x i and h i of any group of the light bars in the external light source 4 are assigned according to the following principles: optionally making a vertical line perpendicular to the plane of the reflective display module 1 from any group of straight lines parallel to the intersection line of the plane of the external light source module and the plane of the reflective display module 1, wherein the distance between the central point of any group of light bars and the plane of the reflective display module 1 is h i of the group of light bars in the direction of the vertical line; meanwhile, in the plane of the reflective display module 1, the shortest distance between the intersection point of the perpendicular line and the plane of the reflective display module 1 and the end side of the reflective display module 1 away from the external light source 4 is the maximum value of x i of the set of light bars. Then according to the above formula I and formula II, x i+1 of the ith+1th group of light bars and the light-emitting angle theta i of the ith group of light bars which meet the requirements can be calculated, and then the mounting angle delta i between the ith group of light bars and the supporting body 5 can be calculated by substituting the formula III.
When the reflective display device is used as an electronic reader, if light supplementing is needed to be performed on the reflective display module 1, a proper relative position relationship can be obtained by the magnetic attraction effect of the matching piece 3 and the included angle between the movable adjusting support piece 5 and the reflective display module 1, and the buttons on the side face of the matching piece 3 are pressed, so that a plurality of groups of LED light bars in the external light source 4 are selectively and partially or completely lighted.
In order to supplement the reflective display module 1, at this time, for example, in the case where the angle between the support body 5 and the reflective display module 1 is adjusted to 90 ° by the fitting member 3, assuming that the brightness of the light bar 401 is 100%, the algebraic relation according to formula IV:
In the formula IV, Y n、Ym is the light output intensity of the nth group of light bars and the mth group of light bars respectively, x n、xm is the maximum linear distance between an irradiation area formed by the nth group of light bars and the mth group of light bars on the reflective display screen body and the matching piece in the vertical direction, and h n、hm is the vertical height of the nth group of light bars and the mth group of light bars relative to the reflective display panel respectively; the luminous brightness of each group of LED light bars can be calculated, and the luminous brightness of other LED light bars can be adjusted by rotating the button of the matching piece 3.
Meanwhile, since the luminous flux i=i 0 ×cos θ of each view angle of the lambertian light source, I 0 is the luminous flux of the positive view angle, θ is the light emitting angle, the brightness uniformity of each group of light bars in the external light source 4 irradiating the reflective display panel 2 is calculated, and is shown in table 2, wherein the total uniformity is the product of the uniformity of the distance between the light source and the plane and the uniformity of the light emitting angle:
Table 2 display parameters of the light bars included in the external light source 4 of fig. 3
As can be seen from the results of table 2, the reflective display device provided by the invention comprises the external light source 4, and the uniformity of light supplement to the reflective display panel by 272% or more is achieved by adjusting the brightness of the LED light bar in the external light source under a certain position setting, so that the display effect of the reflective display device is improved. It should be noted that, the data given in table 2 are all calculated on the premise that the given positional relationship of the light bar and the dihedral angle between the supporting body 5 and the reflective display module 1 are 90 °, and the specific technical effects that can be achieved by the present invention are not limited.
When the reflective display device is not used as a reader or a display, the external light source 4 is turned off by a button. At this time, the supporting body 5 may form an angle greater than 0 ° with the reflective display module 1 as a supporting structure, or may be folded at 0 °. Therefore, the reflective display device provided by the invention has the advantages that the structure of the external light source is small in occupied space and easy to store.
In the above examples, the connection manner between the external light source and the reflective display panel, the dihedral angle formed, the specific types of the groups of light bars included in the external light source, the mounting manner of the light bars, the height of the reflective display panel and the adjustment of the light emitting angle of any group of light bars, and the like in the reflective display device do not play a role in defining the reflective display device; appropriately, the above structural parameters can be adjusted according to practical application conditions, such as the size of the reflective display panel, the position of the reflective display panel on the reflective display module, and/or the required light compensation distance of the reflective display module under a certain ambient light, so as to achieve a better application effect.
In summary, the reflective display device provided by the invention can be applied to various scenes, and provides necessary reference value for the display field in the aspect of light supplementing technology.
Claims (9)
1. The reflective display device is characterized by comprising a reflective display module, an external light source module and a matching piece, wherein the reflective display module comprises a reflective display panel; the external light source module comprises a support body and a plurality of groups of light bars arranged on the surface of the support body opposite to the reflective display module; the external light source module is connected with the reflective display module through the matching piece, the lamp strip which is farthest from the reflective display module in the external light source module is a first group of lamp strips, and the position relation between any two groups of adjacent lamp strips in the plurality of groups of lamp strips relative to the reflective display module meets the following formula I: ; in the formula I, I is an integer not less than 1, a point is optionally selected on an intersection line of a plane where the external light source module is located and a plane where the reflective display module is located, a perpendicular line perpendicular to the intersection line is made in the plane where the reflective display module is located through the point, x i is the maximum linear distance between an irradiation area formed by an ith group of light bars on the reflective display panel and the matching piece in the direction of the perpendicular line, x i+1 is the maximum linear distance between an irradiation area formed by an ith+1 group of light bars on the reflective display panel and the matching piece in the direction of the perpendicular line, and h i is the vertical height of the ith group of light bars relative to the reflective display module;
the groups of light bars are arranged in parallel or not in parallel and have no cross; the size relation between x of any two adjacent groups of light bars is as follows: x i≥xi+1.
2. The reflective display device of claim 1, wherein the support is coupled to the mating member, the mating member being coupled to the reflective display module to adjust a relative position between the external light source module and the reflective display module.
3. The reflective display device of claim 1, wherein an area of the external light source module irradiated to the reflective display panel is not smaller than a reflective display area of the reflective display panel to be supplemented with light.
4. The reflective display device of claim 2, wherein the light exit angle of each set of light bars satisfies formula II: In the formula II, θ i is the light emergent angle of the ith group of light bars.
5. The reflective display device of claim 4, wherein an acute angle between each set of the light bars and the support satisfies formula III: in the formula III, delta i is an acute angle formed between the ith row of lamp bars and the supporting body.
6. The reflective display device of claim 1, wherein the light output intensity of each set of light bars satisfies formula IV: Wherein Y n、Ym is the output light intensity of the nth group and the mth group, x n、xm is the maximum linear distance between the irradiation area formed by the nth group and the mth group on the reflective display panel and the matching piece in the vertical direction, and h n、hm is the vertical height of the nth group and the mth group relative to the reflective display panel.
7. The reflective display device of claim 1, wherein the external light source module is movably connected to the reflective display module by the mating member.
8. The reflective display device of claim 1, wherein the mating member comprises a control module to control the switching and lighting brightness of the external light source module and/or to provide electrical power to the external light source module via the mating member.
9. Use of the reflective display device of any of claims 1-8 as an electronic reader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311863172.7A CN117784465B (en) | 2023-12-29 | 2023-12-29 | Reflective display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311863172.7A CN117784465B (en) | 2023-12-29 | 2023-12-29 | Reflective display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117784465A CN117784465A (en) | 2024-03-29 |
| CN117784465B true CN117784465B (en) | 2024-08-27 |
Family
ID=90390833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311863172.7A Active CN117784465B (en) | 2023-12-29 | 2023-12-29 | Reflective display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117784465B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867007A (en) * | 2016-05-31 | 2016-08-17 | 京东方科技集团股份有限公司 | Display device and control method thereof |
| CN112859443A (en) * | 2021-02-08 | 2021-05-28 | 捷开通讯(深圳)有限公司 | Display device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867747A3 (en) * | 1997-03-25 | 1999-03-03 | Sony Corporation | Reflective display device |
| JPH11109346A (en) * | 1997-09-29 | 1999-04-23 | Sharp Corp | Illuminator for reflection display device and reflection type liquid crystal display device |
| KR100324285B1 (en) * | 1999-04-14 | 2002-02-21 | 구본준, 론 위라하디락사 | Assistant Light Source nit For Reflective Type Liquid Crystal Display |
| US10473957B2 (en) * | 2016-11-23 | 2019-11-12 | E Ink Holdings Inc. | Reflective display apparatus |
| CN109031512B (en) * | 2018-09-04 | 2021-08-27 | 京东方科技集团股份有限公司 | Light guide film assembly, front light source and reflective display device |
| CN115356876B (en) * | 2022-08-29 | 2024-06-11 | 北京京东方显示技术有限公司 | Front-mounted light source and display device |
| CN117116223B (en) * | 2023-08-28 | 2024-06-07 | 南通芯洛图电子科技有限公司 | Reflective display device capable of realizing multi-gray scale display |
-
2023
- 2023-12-29 CN CN202311863172.7A patent/CN117784465B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867007A (en) * | 2016-05-31 | 2016-08-17 | 京东方科技集团股份有限公司 | Display device and control method thereof |
| CN112859443A (en) * | 2021-02-08 | 2021-05-28 | 捷开通讯(深圳)有限公司 | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117784465A (en) | 2024-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101693655B1 (en) | Back Light Unit And Liquid Crystal Display Device Comprising Thereof | |
| RU2491472C1 (en) | Illumination device and display device | |
| US8773614B2 (en) | Two-way liquid crystal display device | |
| US8723779B2 (en) | Tiled optical fiber display | |
| RU2511720C2 (en) | Lighting device, display device and television receiver | |
| US9086589B2 (en) | Liquid crystal display device | |
| US8054402B2 (en) | Optical member, backlight assembly and display apparatus having the same | |
| CN101196650A (en) | Backlight assembly and display device having the same | |
| CN209992781U (en) | Backlight module and liquid crystal display device | |
| CN107991810B (en) | Backlight and liquid crystal display | |
| WO2011048881A1 (en) | Lighting device, display device, television receiver device | |
| CN215526298U (en) | Backlight module and display device | |
| CN106292075A (en) | A kind of liquid crystal display LED backlight system with night viewing compatible | |
| CN101556401A (en) | Liquid crystal display device | |
| KR101112552B1 (en) | Lens for light emitting diode, light emitting diode, backlight assembly and liquid crystal display device comprising the same | |
| CN101561584A (en) | Backlight module and liquid crystal display device using same | |
| CN107561772B (en) | Backlight module and display device | |
| CN117784465B (en) | Reflective display device | |
| CN209514119U (en) | A kind of light guide plate, backlight assembly and liquid crystal display device | |
| CN209327744U (en) | A kind of backlight module and liquid crystal display panel | |
| CN110618553A (en) | HDR display module and control method | |
| KR20120135651A (en) | Light guide panel and liquid crystal display device having the same | |
| CN217112980U (en) | Backlight module and display device | |
| CN112987394B (en) | Display device | |
| KR102002458B1 (en) | Liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240703 Address after: 237000 Building A2, University Science and Technology Park, Sanshipu Town, Jin'an District, Lu'an City, Anhui Province Applicant after: Anhui Yutu Technology Co.,Ltd. Country or region after: China Address before: No. 19 Changqing Road, Changle Town, Haimen District, Nantong City, Jiangsu Province, 226121 Applicant before: Nantong Xinluotu Electronic Technology Co.,Ltd. Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240724 Address after: Room 913, Building 3, Tianjie Commercial Center, No. 286 Wulishan Road, Xinzhan District, Hefei City, Anhui Province, China 230000 Applicant after: Anhui Qianyumi Material Technology Co.,Ltd. Country or region after: China Address before: 237000 Building A2, University Science and Technology Park, Sanshipu Town, Jin'an District, Lu'an City, Anhui Province Applicant before: Anhui Yutu Technology Co.,Ltd. Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |