Backlight module, display module and electronic equipment
By setting up an inclined light source component on the light guide plate of the backlight module, the problem of rounded backlight dimming is solved, the optical taste and product quality are improved, bad scrapping and return and exchange are reduced, and the user experience is improved.
Patent Information
- Application Number
- CN202323640064.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-28
AI Technical Summary
In the rounded backlight design, the dark optical taste of the backlight rounded corners leads to darkening at the rounded corners of the LCD display module, which affects the display effect and increases the cost of bad scrapping and return and exchange.
The light source assembly is arranged on the light guide plate of the backlight module, including side-by-side lamp bodies, where the light surface of the lamp body near the rounded corner is inclined toward the rounded corner, forming an inclined lamp group to ensure that the light rays are more biased towards the rounded corners and provide sufficient light Irradiation, improve darkening and improve optical taste.
It effectively improves the optical taste of the rounded corners of the backlight module, reduces the bad product scrap rate, saves the cost of quality failure, and improves the user experience and brand image.
Smart Images
Figure CN222259779U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of backlight display modules, in particular to a backlight module, a display module and an electronic device. Background Art
[0002] Backlight Unit (BLU) is an essential component of TFT-LCD display modules. It is commonly used in LCD display modules of smart phones, tablet computers, laptops, smart home devices and other products. With the continuous upgrading of products, LCD display modules with rounded corners of the display area have gradually become the mainstream in the market, and the corresponding backlight is also a backlight with rounded corners.
[0003] In the rounded backlight design, the backlight rounded corners often become dark, which is a poor optical quality. The corresponding rounded corners of the LCD display module will also have a dark corner phenomenon, which affects the display effect and reduces the user experience. At the same time, it greatly increases the quality failure costs such as defective scrapping, long-term returns and exchanges. Utility Model Content
[0004] The main purpose of the utility model is to provide a backlight module, aiming to solve the problem of dark backlight rounded corners.
[0005] In order to achieve the above object, the utility model provides a backlight module, which includes:
[0006] A light guide plate, wherein the light guide plate is provided with a first rounded corner; and
[0007] A light source assembly is arranged on one side of the light guide plate, and the light source assembly includes m lamp bodies arranged side by side, each of the lamp bodies has a light emitting surface, wherein n of the m lamp bodies have light emitting surfaces inclined toward the first rounded corner, and 0<n≤m.
[0008] Optionally, n lamp bodies form a first inclined lamp group, and the first inclined lamp group includes a plurality of lamp bodies with different inclination angles.
[0009] Optionally, the light guide plate is also provided with a second rounded corner, and the m lamp bodies have s lamp bodies with light emitting surfaces inclined toward the second rounded corner, and 0<s≤m; and / or, the s lamp bodies form a second inclined lamp group, and the second inclined lamp group includes multiple lamp bodies with different inclination angles.
[0010] Optionally, the inclination angle α of the lamp body in the first inclined lamp group changes in a decreasing state from an end close to the first rounded corner to an end away from the first rounded corner; and / or the inclination angle β of the lamp body in the second inclined lamp group changes in a decreasing state from an end close to the second rounded corner to an end away from the second rounded corner.
[0011] Optionally, the inclination angle α of the lamp bodies except the first lamp body closest to the first rounded corner in the first inclined lamp group changes in a regular series; and / or, the inclination angle β of the lamp bodies except the first lamp body closest to the second rounded corner in the second inclined lamp group changes in a regular series.
[0012] Optionally, an inclination angle α of the lamp body close to the first rounded corner in the first inclined lamp group is 3°-5°; and / or an inclination angle β of the lamp body close to the second rounded corner in the second inclined lamp group is 3°-5°.
[0013] Optionally, the number of the lamp bodies in the first inclined lamp group is at least 1 and at most m / 2; and / or, the number of the lamp bodies in the second inclined lamp group is at least 1 and at most m / 2.
[0014] Optionally, the number of the lamp bodies in the first inclined lamp group is 3-5; and / or the number of the lamp bodies in the second inclined lamp group is 3-5.
[0015] The utility model also provides a display module, comprising the backlight module as described above.
[0016] The utility model also provides an electronic device, comprising the display module as described above.
[0017] The technical solution of the utility model adopts a light source assembly arranged on one side of a light guide plate, the light guide plate has a first rounded corner, the light source assembly includes m lamp bodies arranged side by side, and the light emitting surfaces of n lamp bodies close to the first rounded corner among the m lamp bodies are inclined toward the first rounded corner. In this way, the light emitted by the lamp body can be more inclined toward the first rounded corner, and then the first rounded corner can obtain sufficient light exposure, the darkening phenomenon will be effectively improved, and a better optical taste effect will be achieved. In addition, the defective product scrapping is reduced, the product yield is improved, the quality failure cost is saved, and the user experience can be improved, the return and exchange are reduced, and it is helpful to maintain a good brand image. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0019] Figure 1 It is a structural schematic diagram of a backlight module in the prior art;
[0020] Figure 2 This is a schematic structural diagram of an embodiment of a backlight module of the utility model;
[0021] Figure 3 This is a schematic structural diagram of a first tilted lamp group in an embodiment of a backlight module of the utility model;
[0022] Figure 4 It is a structural schematic diagram of the second inclined lamp group of the backlight module embodiment of the utility model.
[0023] Description of Figure Numbers:
[0024] Label name Label name 100 Light guide plate 210 First tilt light group 110 First fillet 220 Second tilt light group 120 Second fillet 230 Lamp body 200 Light source components
[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0028] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two fillets or the interaction relationship between two fillets, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0030] The utility model provides a backlight module.
[0031] In the prior art, Figure 1 As shown, in the rounded backlight design, the backlight rounded corners often become dark, which is a poor optical quality. The corresponding rounded corners of the LCD display module will also have a dark corner phenomenon, which affects the display effect and reduces the user experience. At the same time, it greatly increases the quality failure costs such as defective scrapping, long-term returns and exchanges.
[0032] In order to solve the above technical problems, the technical solution of the utility model is to set a light source on the light-emitting side of the backlight module, the light guide plate has a first rounded corner, the light source includes a plurality of lamp bodies arranged side by side, and the lamp bodies close to the first rounded corner among the plurality of lamp bodies are inclined toward the first rounded corner. In this way, the lamp body is inclined toward the first rounded corner so that the light emitted by the lamp body is more inclined toward the first rounded corner, so that the first rounded corner can obtain sufficient light exposure, the darkening phenomenon will be effectively improved, and a better optical taste effect will be achieved. In addition, it can reduce the scrapping of defective products, improve the product yield, save the cost of quality failure, and can improve the user experience, reduce returns and exchanges, and help maintain a good brand image.
[0033] The above technical solution is described in detail below with reference to the accompanying drawings.
[0034] In the embodiment of the present utility model, Figure 2-Figure 4 As shown, the backlight module includes:
[0035] A light guide plate 100, wherein the light guide plate 100 is provided with a first rounded corner 110; and
[0036] The light source assembly 200 is arranged on one side of the light guide plate. The light source assembly 200 includes m lamp bodies 230 arranged side by side. Each lamp body 230 has a light emitting surface. The light emitting surface emits light toward the side wall of the light guide plate. Among the m lamp bodies 230, n light emitting surfaces are arranged obliquely toward the first fillet 110, and 0 <n≤m。
[0037] In this embodiment, the light source assembly 200 includes m lamp bodies 230. Specifically, the m lamp bodies 230 are arranged horizontally in a line on one side of the light guide plate 100. One side wall of the light guide plate is the light incident surface, and the light emitting surface of the lamp body 230 faces the light incident surface of the light guide plate, so that the light emitted by the lamp body 230 is emitted toward the light incident surface of the light guide plate 100. It should be noted that in the prior art, due to the limitation of the structural space of the backlight module, the lamp body 230 cannot be close to the two side edges of the light guide plate 100, and it is difficult to adjust to a qualified optical taste effect, which makes the fillet of the light guide plate 100 dark. In the technical solution of this embodiment, there are n lamp bodies with light emitting surfaces tilted toward the first fillet 110 among the m lamp bodies 230. In this way, the light emitted by the lamp body 230 is biased toward the first fillet 110, so that the first fillet 110 can obtain sufficient light exposure, thereby improving the darkening phenomenon and facilitating adjustment to a qualified optical taste effect. The number of inclined lamp bodies is less than or equal to the total number of lamp bodies. In the specific implementation process, a suitable number of inclined lamp bodies is selected according to actual conditions to make the brightness of the light guide plate 100 uniform.
[0038] Specifically, the lamp body 230 uses an LED lamp, and the light emitted by the lamp body 230 is emitted from the light emitting surface, and the light emitting surface faces the light incident surface of the side wall of the light guide plate 100. Among the n lamp bodies 230, the light emitting surface of each lamp body is inclined toward the first rounded corner 110, so that more light is irradiated toward the first rounded corner 110. In practice, the lamp body 230 is fixed on the soldering pad, and the soldering pad is bent to achieve the n lamp bodies 230 tilting toward the first rounded corner 110.
[0039] Furthermore, n lamp bodies 230 form a first inclined lamp group 210, and the first inclined lamp group 210 includes a plurality of lamp bodies 230 with different inclination angles. In the specific implementation process, the lamp bodies 230 are arranged in a line on one side of the light guide plate. In order to ensure the uniformity of light emitted by the light source assembly 200 toward the light guide plate 100 and facilitate the adjustment of the optical taste effect, the light emitting surfaces of n lamp bodies among the m lamp bodies are inclined toward the first fillet 110 to form the first inclined lamp group, and the inclination angle of the light emitting surface of each lamp body 230 is different to avoid uneven light. The inclination angle in this embodiment is the angle between the light emitting surface of the lamp body 230 and the horizontal plane.
[0040] Furthermore, the angle of inclination α of the lamp body 230 in the first inclined lamp group 210 changes in a decreasing state from the end close to the first rounded corner 110 to the end far from the first rounded corner 110. Specifically, the lamp body 230 closest to the first rounded corner 110 in the first inclined lamp group 210 is the first lamp body, and in the direction away from the first rounded corner 110, the second lamp body 230, the third lamp body, and so on, the first lamp body 230 has the largest inclination angle, the second lamp body is the second, and so on, and the last lamp body 230 in the first inclined lamp group 210 has the smallest inclination angle.
[0041] In this embodiment, the inclination angle α of a lamp body 230 near the first rounded corner 110 in the first inclined lamp group 210 is 3°-5°, so as to form the best optical taste effect. In addition, according to actual needs, the inclination angle α can also be slightly less than 3° or slightly greater than 5°. The specific angle of the inclination angle α of the first lamp body 230 is determined according to the effect of optical taste adjustment.
[0042] Optionally, except for the first lamp body 230 closest to the first rounded corner 110 in the first inclined lamp group 210, the angles of the inclination angles α of the remaining lamp bodies 230 change in a regular series state. According to the distance between each lamp body and the first rounded corner 110, the angle of the inclination angle α of each lamp body 230 changes in sequence, which can improve the uniformity of the light irradiating the light guide plate 100 and avoid the phenomenon of uneven brightness such as too bright or too dark. In the specific implementation process, the angles of the inclination angles α of the remaining lamp bodies change in an arithmetic progression state to ensure the uniform brightness of the light guide plate 100.
[0043] In the specific implementation process, according to the horizontal extension length of the light guide plate 100 and the radius size of the first fillet 110, in order to ensure the overall brightness and brightness uniformity of the light guide plate 100, in this embodiment, the number of n lamp bodies 230 in the first inclined lamp group 210 is at least not less than 1 and at most not more than half of the total number of lamp bodies 230, that is, at most not more than m / 2, that is, n≤m. In this embodiment, the total number of lamp bodies 230 refers to the number of lamp bodies 230 included in the light source assembly 200.
[0044] Furthermore, the number of lamp bodies 230 in the first inclined lamp group 210 is 3-5. Of course, according to actual needs, the number of lamp bodies 230 can also be less than 3 or more than 5, which is specifically determined according to the effect of optical taste adjustment.
[0045] Optionally, the light guide plate 100 is further provided with a second rounded corner 120, and the light emitting surfaces of s lamp bodies among the m lamp bodies are inclined toward the second rounded corner, and 0<s≤m, and the s lamp bodies form a second inclined lamp group, and the second inclined lamp group includes multiple lamp bodies with different inclination angles.
[0046] In the specific implementation process, the second fillet 120 is symmetrically arranged with the first fillet 110. The light-emitting surfaces of s lamp bodies among the m lamp bodies are tilted toward the second fillet, so that the light emitted by the lamp body 230 is biased toward the second fillet 120, so that the second fillet 120 can obtain sufficient light exposure, thereby improving the darkening phenomenon and facilitating adjustment to a qualified optical taste effect. Among them, the number of inclined lamp bodies is less than or equal to the total number of lamp bodies. In the specific implementation process, an appropriate number of inclined lamp bodies is selected according to actual conditions to make the brightness of the light guide plate 100 uniform.
[0047] Specifically, the angle of the inclination angle β of the lamp body in the second inclined lamp group 220 changes in a decreasing state from the end close to the second rounded corner to the end far from the second rounded corner. Specifically, the lamp body 230 closest to the second rounded corner 120 in the second inclined lamp group 220 is the first lamp body, and in the direction away from the second rounded corner 120, the second lamp body 230, the third lamp body, and so on. Among them, the first lamp body 230 has the largest inclination angle, the second lamp body is the second, and so on. The last lamp body 230 in the second inclined lamp group 220 has the smallest inclination angle.
[0048] In the second inclined lamp group 220, except for the first lamp body 230 close to the second rounded corner 120, the angles of the inclination angles β of the remaining lamp bodies 230 change in a regular series state. According to the distance between each lamp body 230 and the second rounded corner 120, the inclination angle of each lamp body 230 changes in sequence, which can improve the uniformity of the light irradiating the light guide plate 100 and avoid the phenomenon of uneven brightness such as too bright or too dark. In the specific implementation process, the angles of the inclination angles β of the remaining lamp bodies change in an arithmetic progression state to ensure the uniform brightness of the light guide plate 100.
[0049] The angle of inclination β of a lamp body 230 near the second rounded corner 120 in the second inclined lamp group 220 is 3°-5°. In addition, according to actual needs, the angle of inclination β can also be slightly less than 3° or slightly greater than 5°. The specific inclination angle of the first lamp body 230 is determined according to the effect of optical taste adjustment.
[0050] The number of the plurality of lamp bodies 230 in the second inclined lamp group 220 is at least 1 and at most not more than half of the total number of the plurality of lamp bodies 230 arranged side by side, that is, at most not more than m / 2, so as to ensure the overall brightness of the light guide plate 100 and the uniformity of the brightness. The number of the lamp bodies 230 in the second inclined lamp group 220 is 3-5. Of course, according to actual needs, the number of the lamp bodies 230 in the second inclined lamp group 220 can also be less than 3 or more than 5, which is determined according to the effect of optical taste adjustment.
[0051] In addition, the overall lamp body 230 included in the light source assembly 200 also includes a positive lamp group formed by t positive lamp bodies 230, where t≥0, and the positive lamp group is located between the first inclined lamp group 210 and the second inclined lamp group 220. The light emitting surface of the positive lamp body 230 in the positive lamp group is arranged parallel to the light incident surface of the side wall of the light guide plate 100, and emits light toward the light guide plate 100. Of course, it can be understood that the specific number is set according to the specific optical taste effect.
[0052] The utility model also proposes a display module, which includes a backlight module as described in the above embodiments. The specific structure of the backlight module refers to the above embodiments. Since the display module adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
[0053] The utility model also provides an electronic device, comprising the display module as described above.
[0054] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A backlight module, characterized in that: The backlight module comprises: A light guide plate, wherein the light guide plate is provided with a first rounded corner; and A light source assembly is arranged on one side of the light guide plate, and the light source assembly includes m lamp bodies arranged side by side, each of the lamp bodies has a light emitting surface, wherein n of the m lamp bodies have light emitting surfaces inclined toward the first rounded corner, and 0<n≤m.
2. The backlight module according to claim 1, characterized in that: The n lamp bodies form a first inclined lamp group, and the first inclined lamp group includes a plurality of lamp bodies with different inclined angles.
3. The backlight module according to claim 2, characterized in that: The light guide plate is also provided with a second rounded corner, and among the m lamp bodies, there are s lamp bodies with light emitting surfaces inclined toward the second rounded corner, and 0<s≤m; and / or, the s lamp bodies form a second inclined lamp group, and the second inclined lamp group includes multiple lamp bodies with different inclination angles.
4. The backlight module according to claim 3, characterized in that: The inclination angle α of the lamp body in the first inclined lamp group changes in a decreasing state from an end close to the first rounded corner to an end away from the first rounded corner; and / or the inclination angle β of the lamp body in the second inclined lamp group changes in a decreasing state from an end close to the second rounded corner to an end away from the second rounded corner.
5. The backlight module according to claim 4, characterized in that: In the first inclined lamp group, except for the first lamp body closest to the first rounded corner, the inclination angle α of the other lamp bodies changes in a regular series; and / or, in the second inclined lamp group, except for the first lamp body closest to the second rounded corner, the inclination angle β of the other lamp bodies changes in a regular series.
6. The backlight module according to claim 4, characterized in that: An inclination angle α of the lamp body close to the first rounded corner in the first inclined lamp group is 3°-5°; and / or an inclination angle β of the lamp body close to the second rounded corner in the second inclined lamp group is 3°-5°.
7. The backlight module according to claim 3, characterized in that: The number of the lamp bodies in the first inclined lamp group is at least 1 and at most m / 2; and / or the number of the lamp bodies in the second inclined lamp group is at least 1 and at most m / 2.
8. The backlight module according to claim 7, characterized in that: The number of the lamp bodies in the first inclined lamp group is 3-5; and / or the number of the lamp bodies in the second inclined lamp group is 3-5.
9. A display module, characterized in that: It comprises the backlight module as described in any one of claims 1 to 8.
10. An electronic device, characterized in that: Comprising the display module as claimed in claim 9.