Lens and liquid crystal panel

Abstract

The utility model relates to the technical field of optical lenses, and discloses a lens and a liquid crystal panel. The lens includes a vertical portion and a curved portion, the curved portion is connected to the vertical portion, a light-emitting curved surface is provided on the curved portion, the vertical portion and the curved portion also form a light-entering groove together, the light-entering groove includes an inner groove portion and an opening portion, the opening portion includes an arc portion, the inner groove portion is connected to the arc portion, the arc portion is also connected to the surface of the vertical portion away from the curved portion, along a first direction, the diameter of the arc portion gradually decreases, the first direction is perpendicular to the surface of the vertical portion away from the curved portion, and the first direction points from the vertical portion to the curved portion; the light-entering groove is used to receive light emitted by a lamp bead, the curved portion is used to refract at least part of the light in the light-entering groove and then emit it from the light-emitting curved surface, and the boundary of the arc portion is used to refract part of the light in the light-entering groove toward the direction of the curved portion, so that the part of the light can be emitted from the light-emitting curved surface. In the above manner, the utility model can reduce the waste of light.

Description

Technical Field

[0001] The embodiments of the utility model relate to the technical field of optical lenses, and in particular to a lens and a liquid crystal panel. Background Art

[0002] In the LCD panel, the lens is one of the indispensable parts. The light emitted by the lamp beads in the LCD panel passes through the lens 1' and is displayed on the screen. Figure 1 The lens 1' currently on the market includes a curved portion 11' and a vertical portion 12', the curved portion 11' and the vertical portion 12' together form a light entrance groove 13', the curved portion 11' is provided with a light exit curved surface 111', the light emitted by the lamp bead 2' can enter the interior of the lens 1' from the light entrance groove 13', and then be emitted from the light exit curved surface 111' and presented on the screen 3' of the liquid crystal panel.

[0003] At present, many manufacturers often use lamp beads 2' with larger outer diameters in order to improve the luminous flux and light intensity of liquid crystal panels. In order to make the lens 1' adapt to lamp beads 2' with larger diameters, a circular groove 131' is usually set at the opening of the light entrance groove 13'. The diameter of the circular groove 131' is basically equal to or slightly larger than the diameter of the lamp bead 2', so that the light emitted by the lamp bead 2' can enter the light entrance groove 13' from the circular groove 131', and then be refracted by the curved surface 11' and emitted from the light emitting curved surface 111' and presented on the screen 3' of the liquid crystal panel.

[0004] However, using the above method, part of the light emitted by the lamp bead 2' will be directly emitted from the side wall 1313' of the circular groove 131' along the path 4' from the side wall 121' of the vertical portion 12', resulting in these lights not being able to be displayed on the screen 3' located on the side of the curved surface 11' away from the vertical portion 12', thereby causing a waste of light. Utility Model Content

[0005] The technical problem mainly solved by the embodiments of the utility model is to provide a lens and a liquid crystal panel, which can reduce the waste of light.

[0006] In order to solve the above technical problems, a technical solution adopted in an embodiment of the utility model is: a lens is provided, including a curved portion and a vertical portion, the edge of the curved portion is connected to the vertical portion, the curved portion is provided with a light emitting curved surface, the vertical portion and the curved portion also jointly form a light entrance groove, the light entrance groove includes an inner groove portion and an opening portion, the opening portion includes an arc portion, the inner groove portion is connected to the arc portion, the arc portion is also connected to the surface of the vertical portion away from the curved portion, along a first direction, the diameter of the arc portion gradually decreases, the first direction is perpendicular to the surface of the vertical portion away from the curved portion, and the first direction is directed from the vertical portion to the curved portion; the light entrance groove is used to receive light emitted by the lamp bead, the curved portion is used to refract at least part of the light in the light entrance groove and then emit it from the light emitting curved surface, and the boundary of the arc portion is used to refract part of the light in the light entrance groove in a direction toward the curved portion, so that the part of the light can be emitted from the light emitting curved surface.

[0007] Optionally, the opening portion further includes a first inclined portion, the first inclined portion respectively communicates with the inner groove portion and the arc-shaped portion, and a diameter of the first inclined portion gradually decreases along the first direction.

[0008] Optionally, the opening portion further includes a second inclined portion, the second inclined portion is connected to the first inclined portion and the inner groove portion respectively, and the diameter of the second inclined portion gradually decreases along the first direction.

[0009] Optionally, the opening portion further includes a third inclined portion, the third inclined portion is connected to the second inclined portion and the inner groove portion respectively, and the diameter of the third inclined portion gradually decreases along the first direction.

[0010] Optionally, the opening portion further includes a fourth slope portion, the fourth slope portion is connected to the third slope portion and the inner groove portion respectively, and the diameter of the fourth slope portion gradually decreases along the first direction.

[0011] Optionally, on the first section, a partial boundary of the arc portion is an arc line, and in the second direction, the distance R1 between the starting point of the arc line and the center line of the lens satisfies: 2.52mm≤R1≤2.54mm, and the distance R2 between the end point of the arc line and the center line of the lens satisfies: 2.34mm≤R2≤2.36mm, wherein the first section passes through the center line of the lens; along the first direction, the distance L1 between the starting point and the end point of the arc line satisfies: 0.20mm≤L1≤0.22mm.

[0012] Optionally, on the first section, a partial boundary of the first inclined portion is a first oblique line, and in the second direction, a distance R3 between a starting point of the first oblique line and a center line of the lens satisfies: 2.34mm≤R3≤2.36mm, and a distance R4 between an end point of the first oblique line and the center line of the lens satisfies: 2.27mm≤R4≤2.29mm, wherein the first section passes through the center line of the lens; along the first direction, a distance L2 between a starting point and an end point of the first oblique line satisfies: 0.18mm≤L2≤0.20mm.

[0013] Optionally, on the first section, a partial boundary of the second inclined portion is a second oblique line, and in the second direction, a distance R5 between a starting point of the second oblique line and a center line of the lens satisfies: 2.27mm≤R5≤2.29mm, and a distance R6 between an end point of the second oblique line and a center line of the lens satisfies: 2.09mm≤R6≤2.11mm, wherein the first section passes through the center line of the lens; along the first direction, a distance L3 between a starting point and an end point of the second oblique line satisfies: 0.11mm≤L3≤0.13mm.

[0014] Optionally, on the first section, a partial boundary of the third inclined portion is a third oblique line, and in the second direction, a distance R7 between a starting point of the third oblique line and a center line of the lens satisfies: 2.09mm≤R7≤2.11mm, and a distance R8 between an end point of the third oblique line and a center line of the lens satisfies: 2.01mm≤R8≤2.03mm, wherein the first section passes through the center line of the lens; along the first direction, a distance L4 between a starting point and an end point of the third oblique line satisfies: 0.29mm≤L4≤0.31mm.

[0015] To solve the above technical problems, another technical solution adopted by the embodiment of the utility model is: to provide a liquid crystal panel, including multiple lamp beads and multiple lenses mentioned above, the multiple lamp beads and the multiple lenses correspond one to one, and the light emitted by a lamp bead can be refracted by a lens and displayed on the screen of the liquid crystal panel.

[0016] The beneficial effect of the embodiment of the utility model is: different from the prior art, in the embodiment of the utility model, the edge of the curved surface portion is connected to the vertical portion, the curved surface portion is provided with a light emitting curved surface, the vertical portion and the curved surface portion jointly form a light entrance groove, the light entrance groove includes an inner groove portion and an opening portion, the opening portion includes an arc portion, the inner groove portion is connected to the arc portion, and along a first direction, the diameter of the arc portion gradually decreases, the first direction is perpendicular to the surface of the vertical portion away from the curved surface portion, and the first direction is directed from the vertical portion to the curved surface portion, the light entrance groove is used for light emitted by the lamp bead, the curved surface portion is used to refract the light in the light entrance groove and emit it from the light emitting curved surface, the boundary of the arc portion is used to refract part of the light in the light entrance groove toward the direction of the curved surface portion, so that the part of the light can be emitted from the light emitting curved surface, which can reduce the risk that the part of the light is directly emitted from the side wall of the vertical portion and cannot be presented on the screen of the liquid crystal panel, thereby reducing the waste of light, so that the light emitted by the lamp bead can be more fully utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of a lens in the prior art;

[0019] Figure 2 is a schematic structural diagram of a lens provided in an embodiment of the utility model at a first viewing angle;

[0020] Figure 3 is a schematic structural diagram of a lens provided in an embodiment of the utility model at a second viewing angle;

[0021] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the middle section AA;

[0022] Figure 5 yes Figure 4 Enlarged view of the area shown in the middle M part;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the lens and the lamp bead provided in the embodiment of the utility model;

[0024] Figure 7 yes Figure 6 Enlarged view of the area shown in the middle N part;

[0025] Figure 8 is used Figure 1The light curve changes of the experiment with the lens shown in ;

[0026] Fig. 9 It is a graph showing the change of light curves in an experiment using the lens of the present application. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0029] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] In order to help readers better understand the concept of this application, the prior art is first described:

[0031] See also Figure 1 , Figure 1It is a schematic diagram of the cross-sectional structure of an existing lens 1', wherein the lens 1' comprises a curved portion 11' and a vertical portion 12', wherein the curved portion 11' and the vertical portion 12' jointly form a light entrance groove 13', wherein the curved portion 11' is provided with a light emitting curved surface 111', wherein a circular groove 131' is provided at the opening of the light entrance groove 13', wherein the lamp bead 2' is located on the side of the circular groove 131' away from the curved portion 11', and wherein the diameter of the circular groove 131' is substantially equal to or slightly larger than the diameter of the lamp bead 2', thereby enabling the light emitted by the lamp bead 2' to enter the light entrance groove 13' from the circular groove 131', and then be refracted by the curved portion 11' and presented on the screen 3' located on the side of the curved portion 11' away from the vertical portion 12'. However, in this way, part of the light will directly enter the vertical portion 12' from the side wall 1311' of the circular groove 131' and emit from the side wall 121' of the vertical portion 12' along the path 4', so that this part of the light cannot be displayed on the screen 3', resulting in a waste of light.

[0032] To this end, the present application proposes a lens 1 that can reduce the waste of light and allow more light to be presented on the screen 3 of the liquid crystal panel.

[0033] See also Figure 2 , Figure 4 and Figure 6 The lens 1 includes: a curved portion 11 and a vertical portion 12. The outer surface of the curved portion 11 is roughly in the shape of a round cap. The edge of the curved portion 11 is connected to the vertical portion 12. The curved portion 11 is provided with a light-emitting curved surface 111. The light-emitting curved surface 111 constitutes at least part of the outer surface of the curved portion 11. The edge of the light-emitting curved surface 111 is connected to the vertical portion 12. The vertical portion 12 and the curved portion 11 also form a light-entering groove 13 together. The light-entering groove 13 includes an inner groove portion 131 and an opening portion 132. At least part of the opening portion 132 is formed in the vertical portion 12. The opening portion 132 is connected to the inner groove portion 131. The opening portion 132 is also connected to the surface of the vertical portion 12 away from the curved portion 11. Among them, the light-entering groove 13 is used to receive the light emitted by the lamp bead 2, and the curved portion 11 is used to refract the light in the light-entering groove 13 and emit it from the light-emitting curved surface 111. Specifically, when the lens 1 is applied to a liquid crystal panel, the lamp bead 2 is installed on the side of the vertical portion 12 away from the curved portion 11, and the axis of the lamp bead 2 is roughly coincident with the axis of the light entrance groove 13, and the screen 3 of the liquid crystal panel is located on the side of the curved portion 11 away from the vertical portion 12. At least part of the light emitted by the lamp bead 2 enters the inner groove portion 131 through the opening portion 132, and then is refracted by the curved portion 11 and emitted from the light emitting curved surface 111, and finally the light is displayed on the screen 3 of the liquid crystal panel.

[0034] For the above-mentioned opening portion 132, please refer to Figures 5 to 7 ,in, Figure 6 and Figure 7 The symbol P in represents the path of the partial light. Figure 6 The line with an arrow in the middle also indicates the path of part of the light. The opening portion 132 includes an arc portion 1321, which is connected to the surface of the vertical portion 12 away from the curved surface portion 11, and the arc portion 1321 is also connected to the inner groove portion 131. Along the first direction X, the diameter of the arc portion 1321 gradually decreases. The first direction X is perpendicular to the surface of the vertical portion 12 away from the curved surface portion 11, and the first direction X points from the vertical portion 12 to the curved surface portion 11. The axis of the lamp bead 2 is roughly coincident with the axis of the arc portion 1321. The light emitted by the lamp bead 2 can enter the inner groove portion 131 from the arc portion 1321. Among them, the boundary of the arc portion 1321 is used to refract part of the light in the light entrance groove 13 toward the direction of the curved surface portion 11, so that the part of the light can be emitted from the light emitting curved surface 111 and presented on the screen 3, preventing the light from being emitted from the side wall 121 of the vertical portion 12 along the path 6 and unable to be presented on the screen 3, which is beneficial to reduce the waste of light and at the same time increases the amount of light presented on the screen 3, which is beneficial to improve the display quality of the screen 3, thereby enhancing the user's visual experience.

[0035] For further information, see Figure 4 and Figure 5 , on the first section AA, the boundaries of the arc portion 1321 in the second direction Y are two arc lines, and the two arc lines are symmetrical with respect to the center line H of the lens 1, wherein the second direction Y is perpendicular to the first direction X, and the first section AA passes through the center line H of the lens 1. Since the two arc lines are symmetrical, only the structure of the arc line located above the center line H is described below. Along the first direction X, the arc line has a starting point A and an end point B, and the distance L1 between the starting point A and the end point B of the arc line satisfies: 0.20mm≤L1≤0.22mm. In the second direction Y, the distance R1 between the starting point A of the arc line and the center line H of the lens 1 satisfies: 2.52mm≤R1≤2.54mm, and the distance R2 between the end point B of the arc line and the center line H of the lens 1 satisfies: 2.34mm≤R2≤2.36mm.

[0036] Furthermore, along the first direction X, a distance L1 between a starting point A and an end point B of the arc line further satisfies: 0.205 mm≤L1≤0.215 mm.

[0037] Further, along the first direction X, a distance L1 between a starting point A and an end point B of the arc line is 0.21 mm.

[0038] Further, in the second direction Y, a distance R1 between a starting point A of the arc line and a center line H of the lens 1 satisfies: 2.525 mm≤R1≤2.535 mm.

[0039] Further, in the second direction Y, a distance R1 between a starting point A of the arc line and a center line H of the lens 1 is 2.53 mm.

[0040] Further, in the second direction Y, a distance R2 between the end point B of the arc line and the center line H of the lens 1 satisfies: 2.345 mm≤R2≤2.355 mm.

[0041] Further, in the second direction Y, a distance R2 between the end point B of the arc line and the center line H of the lens 1 is 2.35 mm.

[0042] In some embodiments, see Figures 5 to 7 The opening portion 132 further includes a first bevel portion 1322, which is located between the arc portion 1321 and the inner groove portion 131, and the first bevel portion 1322 is connected to the inner groove portion 131 and the arc portion 1321, respectively, and the diameter of the first bevel portion 1322 gradually decreases along the first direction X. In this embodiment, by gradually decreasing the diameter of the second bevel portion 1323 in the first direction X, part of the light irradiated on the first bevel portion 1322 can be refracted toward the direction of the curved portion 11, reducing the risk of the part of the light being directly emitted from the side wall 121 of the vertical portion 12, so that the part of the light can be emitted from the light exiting curved surface 111 and presented on the screen 3, which is conducive to further reducing the waste of light, and is conducive to improving the display quality of the screen 3, thereby enhancing the visual experience of the user.

[0043] In some embodiments, see Figure 4 and Figure 5 , on the first section AA, the boundaries of the first inclined portion 1322 in the second direction Y are two first inclined lines, and the two first inclined lines are symmetrical with respect to the center line H of the lens 1. Since the two first inclined lines are symmetrical, only the structure of the first inclined line located above the center line H is described below. Along the first direction X, the first inclined line has a starting point and an end point C, wherein the starting point of the first inclined line coincides with the end point B of the arc, and therefore, B is also the starting point of the first inclined line. Along the first direction X, the distance L2 between the starting point B and the end point C of the first inclined line satisfies: 0.18mm≤L2≤0.20mm. In the second direction Y, the distance R3 between the starting point B of the first inclined line and the center line H of the lens 1 satisfies: 2.34mm≤R3≤2.36mm, and the distance R4 between the end point C of the first inclined line and the center line H of the lens 1 satisfies: 2.27mm≤R4≤2.29mm.

[0044] Furthermore, along the first direction X, a distance L2 between a starting point B and an end point C of the first oblique line further satisfies: 0.185 mm ≤ L2 ≤ 0.195 mm.

[0045] Further, along the first direction X, a distance L2 between a starting point B and an end point C of the first oblique line is 0.19 mm.

[0046] Further, in the second direction Y, a distance R3 between a starting point B of the first oblique line and a center line H of the lens 1 satisfies: 2.345 mm≤R3≤2.355 mm.

[0047] Further, in the second direction Y, a distance R3 between a starting point B of the first oblique line and a center line H of the lens 1 is 2.35 mm.

[0048] Further, in the second direction Y, a distance R4 between an end point C of the first oblique line and a center line H of the lens 1 satisfies: 2.275 mm≤R4≤2.285 mm.

[0049] Further, in the second direction Y, a distance R4 between the end point C of the first oblique line and the center line H of the lens 1 is 2.28 mm.

[0050] In some embodiments, see Figures 5 to 7 The opening portion 132 further includes a second bevel portion 1323, which is located between the first bevel portion 1322 and the inner groove portion 131, and the second bevel portion 1323 is connected to the inner groove portion 131 and the first bevel portion 1322, respectively, and the diameter of the second bevel portion 1323 gradually decreases along the first direction X. In this embodiment, by gradually decreasing the diameter of the second bevel portion 1323 in the first direction X, part of the light irradiated on the second bevel portion 1323 can be refracted toward the direction of the curved portion 11, reducing the risk of the part of the light being directly emitted from the side wall 121 of the vertical portion 12, so that the part of the light can be emitted from the light emitting curved surface 111 and presented on the screen 3, which is conducive to further reducing the waste of light, and is conducive to improving the display quality of the screen 3, thereby enhancing the visual experience of the user.

[0051] In some embodiments, see Figure 4 and Figure 5, on the first section AA, the boundaries of the second inclined portion 1323 in the second direction Y are two second inclined lines, and the two second inclined lines are symmetrical with respect to the center line H of the lens 1. Since the two second inclined lines are symmetrical, only the structure of the second inclined line located above the center line H is described below. Along the first direction X, the second inclined line has a starting point and an end point E, wherein the starting point of the second inclined line coincides with the end point E of the first inclined line, and therefore, C is also the starting point of the second inclined line. Along the first direction X, the distance L3 between the starting point C and the end point E of the second inclined line satisfies: 0.11mm≤L3≤0.13mm. In the second direction Y, the distance R5 between the starting point C of the second inclined line and the center line H of the lens 1 satisfies: 2.27mm≤R5≤2.29mm, and the distance R6 between the end point E of the second inclined line and the center line H of the lens 1 satisfies: 2.09mm≤R6≤2.11mm.

[0052] Furthermore, along the first direction X, a distance L3 between a start point C and an end point E of the second oblique line further satisfies: 0.115 mm≤L3≤0.125 mm.

[0053] Further, along the first direction X, a distance L3 between a start point C and an end point E of the second oblique line is 0.12 mm.

[0054] Further, in the second direction Y, a distance R5 between a starting point C of the second oblique line and a center line H of the lens 1 satisfies: 2.275 mm≤R5≤2.285 mm.

[0055] Further, in the second direction Y, a distance R5 between a starting point C of the second oblique line and a center line H of the lens 1 is 2.28 mm.

[0056] Further, in the second direction Y, a distance R6 between an end point E of the second oblique line and a center line H of the lens 1 satisfies: 2.095 mm≤R6≤2.105 mm.

[0057] Further, in the second direction Y, a distance R6 between the end point E of the second oblique line and the center line H of the lens 1 is 2.10 mm.

[0058] In some embodiments, see Figure 4 and Figure 6 The screen 3 of the liquid crystal panel is located on the side of the curved surface 11 away from the vertical portion 12, so that the light emitted by the lamp bead 2 will form a circular light spot 4 on the screen 3 after being refracted by the lens 1. In the peripheral area 41 of the light spot 4, the farther away from the center of the light spot 4, the lower its brightness gradually. When the brightness of the peripheral area 41 of the light spot 4 is too low, a large number of stripes are likely to appear on the screen 3, thereby affecting the user's visual experience. In order to reduce the stripes on the screen 3, in this application, please refer to Figures 5 to 7The opening portion 132 further includes a third bevel portion 1324, which is located between the second bevel portion 1323 and the inner groove portion 131, and the third bevel portion 1324 is connected to the inner groove portion 131 and the second bevel portion 1323, respectively, and the diameter of the third bevel portion 1324 gradually decreases along the first direction X. In this embodiment, by gradually decreasing the diameter of the third bevel portion 1324 in the first direction X, part of the light irradiated at the boundary of the third bevel portion 1324 can be refracted toward the direction of the vertical portion 12, so that the part of the light irradiates toward the peripheral area 41 of the light spot 4, thereby increasing the brightness of the peripheral area 41 of the light spot 4, thereby reducing the stripes on the screen 3, which is beneficial to improving the display quality of the screen 3, thereby enhancing the visual experience of the user.

[0059] In some embodiments, see Figure 4 and Figure 5 , on the first section AA, the boundaries of the third inclined surface 1324 in the second direction Y are two third inclined lines, and the two third inclined lines are symmetrical with respect to the center line H of the lens 1. Since the two third inclined lines are symmetrical, only the structure of the third inclined line located above the center line H is described below. Along the first direction X, the third inclined line has a starting point and an end point F, wherein the starting point of the third inclined line coincides with the end point E of the second inclined line, and therefore, E is also the starting point of the third inclined line. Along the first direction X, the distance L4 between the starting point E and the end point F of the third inclined line satisfies: 0.29mm≤L4≤0.31mm. In the second direction Y, the distance R7 between the starting point E of the third inclined line and the center line H of the lens 1 satisfies: 2.09mm≤R7≤2.11mm, and the distance R8 between the end point F of the third inclined line and the center line H of the lens 1 satisfies: 2.01mm≤R8≤2.03mm.

[0060] Furthermore, along the first direction X, a distance L4 between a starting point E and an end point F of the third oblique line further satisfies: 0.295 mm≤L4≤0.305 mm.

[0061] Further, along the first direction X, a distance L4 between a starting point E and an end point F of the third oblique line is 0.30 mm.

[0062] Further, in the second direction Y, a distance R7 between a starting point E of the third oblique line and a center line H of the lens 1 satisfies: 2.095 mm≤R7≤2.105 mm.

[0063] Further, in the second direction Y, a distance R7 between a starting point E of the third oblique line and a center line H of the lens 1 is 2.10 mm.

[0064] Further, in the second direction Y, a distance R8 between an end point F of the third oblique line and a center line H of the lens 1 satisfies: 2.015 mm≤R8≤2.025 mm.

[0065] Further, in the second direction Y, a distance R8 between the end point F of the third oblique line and the center line H of the lens 1 is 2.02 mm.

[0066] In some embodiments, see Figures 5 to 7 The opening portion 132 further includes a fourth bevel portion 1325, which is located between the third bevel portion 1324 and the inner groove portion 131, and the fourth bevel portion 1325 is connected to the inner groove portion 131 and the third bevel portion 1324, respectively, and the diameter of the fourth bevel portion 1325 gradually decreases along the first direction X. In this embodiment, by gradually decreasing the diameter of the fourth bevel portion 1325 in the first direction X, part of the light irradiated at the boundary of the fourth bevel portion 1325 can be refracted toward the direction of the vertical portion 12, so that the part of the light irradiates toward the peripheral area 41 of the light spot 4, thereby increasing the brightness of the peripheral area 41 of the light spot 4, thereby reducing the stripes on the screen 3, which is beneficial to improving the display quality of the screen 3, thereby enhancing the visual experience of the user.

[0067] In some embodiments, see Figure 5 , on the first section AA, the boundaries of the fourth oblique portion 1325 in the second direction Y are two fourth oblique lines, and the two fourth oblique lines are symmetrical with respect to the center line H of the lens 1. Since the two fourth oblique lines are symmetrical, only the structure of the fourth oblique line located above the center line H is described below. Along the first direction X, the fourth oblique line has a starting point and an end point G, wherein the starting point of the fourth oblique line coincides with the end point F of the third oblique line, and therefore, F is also the starting point of the fourth oblique line. Along the first direction X, the distance L5 between the starting point F and the end point G of the fourth oblique line satisfies: 0.14mm≤L5≤0.16mm. In the second direction Y, the distance R9 between the starting point F of the fourth oblique line and the center line H of the lens 1 satisfies: 2.01mm≤R9≤2.03mm, and the distance R0 between the end point G of the fourth oblique line and the center line H of the lens 1 satisfies: 1.87mm≤R0≤1.89mm.

[0068] Furthermore, along the first direction X, a distance L5 between the starting point F and the end point G of the fourth oblique line further satisfies: 0.145 mm≤L5≤0.155 mm.

[0069] Further, along the first direction X, a distance L5 between a starting point F and an end point G of the fourth oblique line is 0.15 mm.

[0070] Further, in the second direction Y, a distance R9 between a starting point F of the fourth oblique line and a center line H of the lens 1 satisfies: 2.015 mm≤R9≤2.025 mm.

[0071] Further, in the second direction Y, a distance R9 between a starting point F of the fourth oblique line and a center line H of the lens 1 is 2.02 mm.

[0072] Further, in the second direction Y, a distance R0 between an end point G of the fourth oblique line and a center line H of the lens 1 satisfies: 1.875 mm≤R0≤1.885 mm.

[0073] Further, in the second direction Y, a distance R0 between an end point G of the fourth oblique line and a center line H of the lens 1 is 1.88 mm.

[0074] In some embodiments, see Figure 6 A top groove 112 is provided at one end of the light emitting curved surface 111 away from the vertical portion 12. When the light emitted by the lamp bead 2 is irradiated to the part of the light emitting curved surface 111 constituting the top groove 112, the part of the light emitting curved surface 111 constituting the top groove 112 can refract part of the light in a direction gradually away from the center line H, thereby weakening the light intensity in the middle area of ​​the light spot 4 and enhancing the light intensity in other areas of the light spot 4, which is beneficial to improving the uniformity of the brightness of the entire light spot 4.

[0075] In some embodiments, see Figure 2 and Figure 3 The lens 1 further includes a support platform 14 , which is disposed on a surface of the vertical portion 12 away from the curved portion 11 , and is used to support the entire lens 1 .

[0076] In some implementations, there are multiple support platforms 14, and the multiple support platforms 14 are all installed on the surface of the vertical portion 12 away from the curved surface portion 11, and the multiple support platforms 14 can provide support for the lens 1. In addition, the support platforms 14 also have a positioning function, and grooves corresponding to the multiple support platforms 14 are provided on the component on which the lens 1 is installed, and the support platforms 14 are inserted into the grooves, so that the lens 1 and the component on which the lens 1 is installed can be positioned.

[0077] Furthermore, the number of the support platforms 14 is three, and the three support platforms 14 are distributed in a circular array. The centers of the three support platforms 14 form a circle, and the diameter D1 of the circle satisfies: 7.45 mm≤D1≤7.55 mm.

[0078] In some embodiments, see Figure 3 , the diameter D2 of the vertical portion 12 satisfies: 15.79 mm ≤ D2 ≤ 15.89 mm.

[0079] In some embodiments, see Figure 2 and Figure 3 The lens 1 further includes a plurality of lugs 15, which are disposed on the side wall 121 of the vertical portion 12, and are distributed circumferentially along the side wall 121 of the vertical portion 12. One end of the plurality of lugs 15 away from the side wall 121 of the vertical portion 12 forms a circumference, and a diameter D3 of the circumference satisfies: 17.25 mm ≤ D3 ≤ 17.35 mm.

[0080] In some embodiments, see Figure 4 , along the first direction X, the length L6 of the lens 1 satisfies: 5.70mm≤L6≤5.80mm.

[0081] In the embodiment of the utility model, the edge of the curved surface 11 is connected to the vertical portion 12, the curved surface 11 is provided with a light-emitting curved surface 111, the vertical portion 12 and the curved surface 11 jointly form a light-entering groove 13, the light-entering groove 13 includes an inner groove portion 131 and an opening portion 132, the opening portion 132 includes an arc portion 1321, the inner groove portion 131 is connected to the arc portion 1321, and along a first direction, the diameter of the arc portion 1321 gradually decreases, the first direction is perpendicular to the surface of the vertical portion 12 away from the curved surface 11, and the first direction is from the vertical portion 12 to the curved surface The surface 11 and the light entrance groove 13 are used for the light emitted by the lamp bead 2. The curved surface 11 is used to refract the light in the light entrance groove 13 and emit it from the light exit curved surface 111. The boundary of the arc portion 1321 is used to refract part of the light in the light entrance groove 13 toward the curved surface 11, so that the part of the light can be emitted from the light exit curved surface 111, which can reduce the risk that the part of the light can be directly emitted from the side wall 121 of the vertical portion 12 and cannot be displayed on the screen 3 of the liquid crystal panel, thereby reducing the waste of light and making fuller use of the light emitted by the lamp bead 2. In order to enable readers to better understand the concept of the present application, the lens 1 and the lens 1 provided in the present application are described below. Figure 1 A comparative experiment was conducted with the lens 1' provided in the prior art shown in:

[0082] The test conditions are: Figure 6 As shown, under dark conditions, a light receiving plate is placed about 35 mm away from the lamp bead along the direction of the center line H (that is, the light receiving plate is placed at the position of the screen 3). After the light emitted by the lamp bead 2 is refracted by the curved surface 11, a circular light spot 4 is formed at the light receiving plate. By measuring the amount of light at each part of the light spot 4, the Figure 8 and Fig. 9 The curve diagram shown in Figure 8 The curve in the figure is Figure 1 The lens 1' shown in FIG. Fig. 9 The curve in the figure is Figures 2 to 7 The lens 1 shown in FIG. Figure 8 and Fig. 9 The horizontal axis in represents the distance from the center of the light spot 4, and its unit is millimeter. For example, the horizontal axis 0 represents the number of rays at the center of the light spot 4. Figure 8 and Fig. 9 The ordinate in represents the number of light rays, wherein the area 120 mm to 150 mm away from the center point of the light spot 4 constitutes the peripheral area 41 of the light spot 4. Figure 8 and Fig. 9 It can be seen that at a distance of 140 mm to 150 mm from the center of the light spot 4, Fig. 9 The number of rays in Figure 8 The number of light rays in the region is large. The boundaries of the arc portion 1321, the first bevel portion 1322, and the second bevel portion 1323 in this application mainly affect the number of light rays in this region. Since the arc portion 1321, the first bevel portion 1322, and the second bevel portion 1323 refract part of the light rays irradiated along the path 6, this part of the light rays is irradiated to the region 140 mm to 150 mm away from the center of the light spot 4, so that the light intensity in this region is enhanced. The third bevel portion 1324 and the fourth bevel portion 1325 in this application mainly affect the number of light rays in the region 120 mm to 140 mm away from the light spot 4. Please continue to compare. Figure 8 and Fig. 9 Since part of the light is refracted by the boundary between the third bevel portion 1324 and the fourth bevel portion 1325 , this part of the light is directed toward an area 120 mm to 140 mm away from the center point of the light spot 4 , so that the amount of light in this area increases.

[0083] The utility model also provides a liquid crystal panel embodiment, which includes a plurality of lamp beads and a plurality of the above-mentioned lenses, wherein the plurality of lamp beads 2 correspond one-to-one to the plurality of lenses 1, and the plurality of lamp beads 2 are distributed in a rectangular array, and the light emitted by the lamp beads 2 can pass through at least a portion of the lens 1 and then be presented on the screen of the liquid crystal panel. For the specific structure and function of the lens 1, refer to the above-mentioned embodiment, which will not be described one by one here.

[0084] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lens, characterized in that: include: vertical part; A curved portion, wherein the edge of the curved portion is connected to the vertical portion, the curved portion is provided with a light emitting curved surface, the vertical portion and the curved portion also jointly form a light entrance groove, the light entrance groove includes an inner groove portion and an opening portion, the opening portion includes an arc portion, the inner groove portion is connected to the arc portion, the arc portion is also connected to a surface of the vertical portion away from the curved portion, along a first direction, the diameter of the arc portion gradually decreases, the first direction is perpendicular to the surface of the vertical portion away from the curved portion, and the first direction is directed from the vertical portion to the curved portion; The light entrance groove is used to receive the light emitted by the lamp bead, the curved surface portion is used to refract at least part of the light in the light entrance groove and emit it from the light exiting curved surface, and the boundary of the arc portion is used to refract part of the light in the light entrance groove toward the direction of the curved surface portion so that the part of the light can be emitted from the light exiting curved surface.

2. The lens according to claim 1, characterized in that The opening portion further includes a first slope portion, the first slope portion communicates with the inner groove portion and the arc portion respectively, and a diameter of the first slope portion gradually decreases along the first direction.

3. The lens according to claim 2, characterized in that The opening portion further includes a second sloped portion communicating with the first sloped portion and the inner groove portion, respectively, and a diameter of the second sloped portion gradually decreases along the first direction.

4. The lens according to claim 3, characterized in that The opening portion further includes a third slope portion communicating with the second slope portion and the inner groove portion, respectively, and a diameter of the third slope portion gradually decreases along the first direction.

5. The lens according to claim 4, characterized in that The opening portion further includes a fourth slope portion communicating with the third slope portion and the inner groove portion, respectively, and a diameter of the fourth slope portion gradually decreases along the first direction.

6. The lens according to claim 1, characterized in that On the first cross section, a portion of the boundary of the arc portion is an arc line, and in the second direction, a distance R1 between a starting point of the arc line and a center line of the lens satisfies: 2.52 mm ≤ R1 ≤ 2.54 mm, and a distance R2 between an end point of the arc line and the center line of the lens satisfies: 2.34 mm ≤ R2 ≤ 2.36 mm, wherein the first cross section passes through the center line of the lens; Along the first direction, a distance L1 between a starting point and an end point of the arc line satisfies: 0.20 mm≤L1≤0.22 mm.

7. The lens according to claim 2, characterized in that: On the first cross section, a portion of the boundary of the first inclined portion is a first oblique line, and in the second direction, a distance R3 between a starting point of the first oblique line and a center line of the lens satisfies: 2.34 mm ≤ R3 ≤ 2.36 mm, and a distance R4 between an end point of the first oblique line and the center line of the lens satisfies: 2.27 mm ≤ R4 ≤ 2.29 mm, wherein the first cross section passes through the center line of the lens; Along the first direction, a distance L2 between a starting point and an end point of the first oblique line satisfies: 0.18 mm ≤ L2 ≤ 0.20 mm.

8. The lens according to claim 3, characterized in that On the first cross section, a portion of the boundary of the second inclined portion is a second oblique line, and in the second direction, a distance R5 between a starting point of the second oblique line and a center line of the lens satisfies: 2.27 mm ≤ R5 ≤ 2.29 mm, and a distance R6 between an end point of the second oblique line and the center line of the lens satisfies: 2.09 mm ≤ R6 ≤ 2.11 mm, wherein the first cross section passes through the center line of the lens; Along the first direction, a distance L3 between a starting point and an end point of the second oblique line satisfies: 0.11 mm≤L3≤0.13 mm.

9. The lens according to claim 4, characterized in that: On the first cross section, a portion of the boundary of the third inclined portion is a third oblique line, and in the second direction, a distance R7 between a starting point of the third oblique line and a center line of the lens satisfies: 2.09 mm ≤ R7 ≤ 2.11 mm, and a distance R8 between an end point of the third oblique line and the center line of the lens satisfies: 2.01 mm ≤ R8 ≤ 2.03 mm, wherein the first cross section passes through the center line of the lens; Along the first direction, a distance L4 between a starting point and an end point of the third oblique line satisfies: 0.29 mm ≤ L4 ≤ 0.31 mm.

10. A liquid crystal panel, characterized in that: It comprises a plurality of lamp beads and a plurality of lenses as described in any one of claims 1 to 9, wherein the plurality of lamp beads correspond to the plurality of lenses one by one, and the light emitted by one of the lamp beads can be refracted by one of the lenses and then presented on the screen of the liquid crystal panel.

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