Light-emitting keyboard, backlight module and light-emitting lamp panel

Abstract

The present application provides a light-emitting keyboard, a backlight module and a light-emitting lamp panel. The backlight module comprises a lamp panel and a light shielding plate. The lamp panel comprises a plurality of light-emitting units arranged in two columns. The light shielding plate comprises at least one first light-emitting window, a plurality of first blocks of patterns arranged in the at least one first light-emitting window, at least one second light-emitting window, and a plurality of second blocks of patterns arranged in the at least one second light-emitting window. The plurality of first blocks of patterns correspond to one of the plurality of light-emitting units and constitute a first column of patterns. The plurality of second blocks of patterns correspond to one of the plurality of light-emitting units and constitute a second column of patterns. The overall periphery of the at least one first light-emitting window has a first window length, and the at least one second light-emitting window has a second window length. The first window length and the second window length have the same length. The first column of patterns and the second column of patterns are different to provide a uniform profile light quantity for the keys.

Description

Technical Field

[0001] This invention relates to an illuminated keyboard, a backlight module, and an illuminated panel, and particularly to an illuminated keyboard, a backlight module, and an illuminated panel that can improve the uniformity of the halo effect of multiple area contours and take into account the uniformity of the halo effect of each key in the area. Background Technology

[0002] With the development of technology, keyboard designs have become increasingly diverse. When choosing a keyboard, users consider not only its basic input functions but also its visual appeal. Currently, backlit keyboards are available on the market, which not only attract users visually but also allow for use at night or in poorly lit environments. However, existing backlit keyboards use low-brightness LEDs to illuminate each square key, which leads to the following problems: 1) The main symbols above the LEDs are too bright, while the corner symbols on the keycaps are too dark; 2) Inconsistent brightness around the keycaps; 3) Inconsistent illumination between single keys and multiple keys. Summary of the Invention

[0003] This invention provides an illuminated keyboard, a backlight module, and an illuminated light board to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention proposes a backlight module for illuminating multiple keycaps. The backlight module includes a lamp panel and a light shield. The lamp panel includes multiple light-emitting units arranged in two columns. The light shield includes at least one first light-emitting window, multiple first patterns, at least one second light-emitting window, and multiple second patterns. The multiple first patterns are disposed in the at least one first light-emitting window, each corresponding to one of the multiple light-emitting units, forming a first column pattern. The multiple second patterns are disposed in the at least one second light-emitting window, each corresponding to one of the multiple light-emitting units, forming a second column pattern. The at least one first light-emitting window has a first window length on its entire periphery, and the at least one second light-emitting window has a second window length. The first window length and the second window length are the same length, and the first column pattern and the second column pattern are different.

[0005] As an optional technical solution, the areas of the at least one first light-emitting window are the same.

[0006] As an optional technical solution, the area of ​​the at least one second light-emitting window is different from the area of ​​the at least one first light-emitting window.

[0007] As an optional technical solution, the short side length of the at least one first light-emitting window is equal to the short side length of the at least one second light-emitting window.

[0008] As an optional technical solution, the first column pattern defines a first frame pattern, the first frame pattern surrounds the at least one first light-emitting window, the second column pattern defines a second frame pattern, the second frame pattern surrounds the at least one second light-emitting window, and the first frame pattern is different from the second frame pattern, or the first frame pattern and the second frame pattern are at least partially the same.

[0009] As an optional technical solution, the two outermost first light-emitting windows in the at least one first light-emitting window are the same as the two outermost second light-emitting windows in the at least one second light-emitting window.

[0010] As an optional technical solution, the backlight module includes at least one pair of non-intersecting wires, and the first column pattern is located between the at least one pair of non-intersecting wires.

[0011] As an optional technical solution, the two outermost second patterns among the plurality of second patterns correspond to the two outermost first patterns among the plurality of first patterns in terms of shape and position.

[0012] As an optional technical solution, the backlight module includes a light guide plate and at least one microstructure layer, the at least one microstructure layer being located on the surface of at least one of the light shield, the light guide plate and the lamp plate.

[0013] As an optional technical solution, the backlight module includes at least one microstructure layer, the light shield includes a second frame pattern, the second frame pattern corresponds to at least one second light-emitting window and the second column pattern, and the at least one microstructure layer overlaps with at least a portion of the second frame pattern.

[0014] As an optional technical solution, the at least one second light-emitting window further includes at least one frame rib, and the at least one frame rib has at least one second supplementary light window.

[0015] As an optional technical solution, at least one of the plurality of first patterns is the same as at least one of the plurality of second patterns.

[0016] As an optional technical solution, the four corners of the overall periphery of the at least one first light-emitting window are symmetrical to the four corners of the at least one second light-emitting window.

[0017] As an optional technical solution, the plurality of second patterns are divided into a first group of second patterns and a second group of second patterns. The first group of second patterns is close to the at least one first light-emitting window, and the second group of second patterns is far from the at least one first light-emitting window. The number of the second group of second patterns is greater than the number of the first group of second patterns.

[0018] Furthermore, the present invention also proposes a backlight module for illuminating multiple keycaps. The backlight module includes a lamp panel and a light shield. The lamp panel includes multiple light-emitting units arranged in two columns. The light shield includes multiple first light-emitting windows, multiple first patterns, at least one second light-emitting window, and multiple second patterns. The multiple first patterns are disposed in the multiple first light-emitting windows, each corresponding to one of the multiple light-emitting units, and the multiple first patterns form a first column pattern. The multiple second patterns are disposed in the at least one second light-emitting window, each corresponding to one of the multiple light-emitting units, and the multiple second patterns form a second column pattern. The lamp panel further includes a pair of non-intersecting wires, and the first column pattern is at least partially located between the pair of non-intersecting wires.

[0019] Furthermore, the present invention also proposes a backlight module for illuminating multiple keycaps. The backlight module includes a lamp panel and a light shield. The lamp panel includes multiple light-emitting units arranged in two columns. The light shield includes multiple first light-emitting windows, multiple first patterns, at least one second light-emitting window, and multiple second patterns. The multiple first patterns are disposed in the multiple first light-emitting windows, each corresponding to one of the multiple light-emitting units, and the multiple first patterns form a first column pattern. The multiple second patterns are disposed in the at least one second light-emitting window, each corresponding to one of the multiple light-emitting units, and the multiple second patterns form a second column pattern. The lamp panel also includes a pair of spaced-apart microstructure regions, with at least one of the multiple first patterns located between the pair of microstructure regions.

[0020] Furthermore, the present invention also proposes an illuminated keyboard, comprising at least one first key, at least one second key, and a backlight module. The at least one second key is arranged parallel to the at least one first key, and the backlight module comprises a lamp panel and a light shield. The lamp panel comprises multiple light-emitting units, each corresponding to one of the at least one first key and one of the at least one second key; the light shield comprises at least one first light-emitting window, multiple first patterns, at least one second light-emitting window, and multiple second patterns. The multiple first patterns are disposed in the at least one first light-emitting window, each corresponding to one of the multiple light-emitting units, and the multiple first patterns form a first column of patterns; the multiple second patterns are disposed in the at least one second light-emitting window, each corresponding to one of the multiple light-emitting units, and the multiple second patterns form a second column of patterns; wherein, the overall periphery of the at least one first key has a first long side, the at least one second key has a second long side, the first long side and the second long side have the same length, and the first column of patterns and the second column of patterns are different.

[0021] As an optional technical solution, the at least one first key and the at least one second key are two multiple keys located on the same straight line, with multiple square keys spaced apart between them, and the at least one first key and the at least one second key have corresponding keycap light-transmitting areas.

[0022] Furthermore, the present invention also proposes a light-emitting panel, which includes a plurality of light-emitting units, a first pair of non-intersecting wires, a second pair of non-intersecting wires, and a light-shielding plate. The plurality of light-emitting units are arranged in two columns. The light-shielding plate includes a plurality of first light-emitting windows, a plurality of first patterns, at least one second light-emitting window, and a plurality of second patterns. The plurality of first patterns are disposed in the plurality of first light-emitting windows, each corresponding to one of the plurality of light-emitting units, and the plurality of first patterns constitute a first column of patterns; the plurality of second patterns are disposed in the at least one second light-emitting window, each corresponding to one of the plurality of light-emitting units, and the plurality of second patterns constitute a second column of patterns; wherein the first column of patterns is located between the first pair of non-intersecting wires, the second column of patterns is located between the second pair of non-intersecting wires, and the first column of patterns is different from the second column of patterns.

[0023] This invention provides an illuminated keyboard, a backlight module, and an illuminated light panel. The frame / block pattern of the light shield is optimized, and the microstructure layer from different locations is fully utilized to recycle light, thereby improving the problem of uneven halo in local areas. It can not only achieve a uniform halo effect in multiple areas, but also take into account the uniformity of single-key halo in each key within the area.

[0024] Furthermore, the present invention forms a protruding structure between two non-intersecting conductors or multiple microstructure regions, and the position of the protruding structure corresponds to the position of the light-emitting unit. In this way, the amount of light entering the light guide plate emitted by the light-emitting unit can be increased, and the light can be recovered or assisted in light emission by the specially configured microstructure region on the light-emitting plate, thereby improving the overall consistency of light emission.

[0025] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an illuminated keyboard according to an embodiment of the present invention; Figure 2 for Figure 1 A partial top view of the backlit keyboard; Figure 3 for Figure 1 A partial exploded view of the backlit keyboard in the image; Figure 4 for Figure 1 A partial cross-sectional view of the backlit keyboard; Figure 5This is a partial top view of an illuminated keyboard according to another embodiment of the present invention; Figure 6 for Figure 5 A partial cross-sectional view of the backlit keyboard; Figure 7 This is a partial cross-sectional view of a backlit keyboard according to another embodiment of the present invention; Figure 8 This is a partial cross-sectional view of a backlit keyboard according to another embodiment of the present invention; Figure 9 This is a partial cross-sectional view of a backlit keyboard according to another embodiment of the present invention; Figure 10 for Figure 1 Another partial top view of the illuminated keyboard; Figure 11 for Figure 1 Another partial top view of the illuminated keyboard; Figure 12A This is a partially exploded view of another embodiment of the illuminated keyboard of the present invention; Figure 12B for Figure 12A A partially exploded view of the backlight module in the embodiment; Figure 12C for Figure 12B A partial top view of the backlight module's lamp panel; Figure 12D for Figure 12B A partial top view of the light shield of the backlight module; Figure 13A for Figure 12B A partial top view of a derivative example of a light-shielding plate; Figure 13B for Figure 12B A partial top view of a derivative example of a light-shielding plate; Figure 13C for Figure 12B A partial top view of a derivative example of a light-shielding plate; Figure 13D for Figure 13C A partial cross-sectional schematic diagram of a derivative example of a light-shielding plate; Figure 14A This is a schematic diagram of a backlit keyboard according to another embodiment of the present invention; Figure 14B for Figure 14A A partial top view of the light-shielding plate in the embodiment. Implementation

[0027] To more clearly illustrate the present invention, the following description, in conjunction with preferred embodiments and accompanying drawings, further explains the invention. Similar components in the drawings are indicated by the same reference numerals. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive and should not be construed as limiting the scope of protection of the present invention.

[0028] Using low-power light-emitting units such as Mini LEDs or Micro LEDs in the backlight module can reduce power consumption, the total heat generated by the backlight module, and the overall thickness of the backlight module, contributing to further thinning of the overall backlit keyboard. However, the limited light-emitting range of Mini LEDs or Micro LEDs poses a significant challenge to the uniformity of light emission on individual keys and the entire keyboard. This invention focuses on how to achieve a large proportion of light from the light-emitting units entering the light guide plate for lateral transmission, and how to effectively collect the light that exits the light guide plate during lateral transmission and reuse it.

[0029] Please see Figure 1 , Figure 1 This is a schematic diagram of an illuminated keyboard (LKB) according to an embodiment of the present invention. Figure 1 As shown, the backlit keyboard LKB includes a backlight module BLM and multiple keys KS. A base plate SUP is mounted on the backlight module BLM, and the multiple keys KS are mounted on the base plate SUP. Generally, the multiple keys KS may include square keys and multiplication keys (e.g., a space key). It should be noted that the number, size, and arrangement of the keys KS can be determined according to the actual application and are not limited to the embodiment shown in the figure.

[0030] The backlight module (BLM) includes a light-emitting plate (LCB), a light guide plate (LGP), and a light-shielding plate (SS). The light guide plate (LGP) is disposed on the light-emitting plate (LCB), and the light-shielding plate (SS) is disposed on the light guide plate (LGP). Each key (KS) on the backlit keyboard (LKB) corresponds to at least one light-emitting unit (e.g., a light-emitting diode) on the light-emitting plate (LCB) of the backlight module (BLM).

[0031] Please see Figures 2 to 4 , Figure 2 for Figure 1 A partial top view of the backlit keyboard LKB in the image. Figure 3 for Figure 1 A partial exploded view of the backlit keyboard LKB in the image. Figure 4 for Figure 1 A partial cross-sectional view of the backlit keyboard (LKB) in the image. (See image for details.) Figures 2 to 4As shown, the light-emitting board (LCB) includes two non-intersecting wires LT and HT, two more non-intersecting wires STa and STb, light-emitting units (LEDs), a first reflective layer RL1, and multiple microstructure regions MS. The LCB can be a lighting circuit board. The LEDs are connected between the two non-intersecting wires STa and STb, and are also connected to the two non-intersecting wires LT and HT via STa and STb. In this embodiment, the two non-intersecting wires LT and HT are the main driving lines for the LEDs, and the two non-intersecting wires STa and STb are the sub-driving lines for the LEDs. Wire LT can be a low-potential wire, and wire HT can be a high-potential wire. The LEDs can be white LEDs or a combination of red, green, and blue LEDs, depending on the application. Generally, the two non-intersecting wires LT and HT are the main conductors with larger cross-sectional areas, which can span multiple buttons KS. The two non-intersecting wires LT and HT do not intersect at least within the range of a single button KS, and they can also not intersect within multiple adjacent buttons KS and a large continuous area covering the gaps between the buttons. The pair of non-intersecting wires STa and STb set within the range of each single button KS are the sub-wires with smaller cross-sectional areas. Although they may be located on the same straight line, the ends of the two non-intersecting wires STa and STb are respectively connected to the two electrodes of the light-emitting unit LED, so the two non-intersecting wires STa and STb do not overlap.

[0032] A first reflective layer RL1 is disposed on two non-intersecting conductors LT and HT and two other non-intersecting conductors STa and STb. Multiple microstructure regions MS are formed on the first reflective layer RL1. In this embodiment, the microstructure regions MS can be concave-convex structures formed on the first reflective layer RL1. For example, the light-emitting board LCB can be made of a flexible circuit board, often using a copper mesh to enhance the board's support strength. Spraying reflective paint or coating a reflective film onto the surface of the flexible circuit board (including the copper mesh surface) can form the first reflective layer RL1. The mesh structure of the copper mesh causes the first reflective layer RL1 to form regular concave points (grid points) and convex areas (grid lines). These concave points and convex areas have reflective functions, reflecting light back to the light guide plate LGP. In practical applications, the copper wire regions (the two non-intersecting conductors LT and HT and the two other non-intersecting conductors STa and STb) can also become protruding linear reflective regions. In principle, the copper mesh should not overlap vertically with two non-intersecting conductors LT and HT on the flexible circuit board, nor should it be electrically connected to two non-intersecting conductors STa and STb. However, in practical applications, the copper mesh has a radio frequency interference shielding effect, so it may be connected to the ground wire of the drive circuit. However, in practical applications, not every reflective layer covering the copper mesh and circuitry can produce a concave-convex reflective structure. If the first reflective layer RL1 is an independent thin-film element, its thickness must be sufficiently thin, for example, less than the thickness of the copper foil substrate (including the adjacent flat copper mesh and copper wire areas), and the first reflective layer RL1 needs to be highly malleable to form a concave-convex microstructure in the copper mesh and copper wire areas when covering the copper foil substrate. If the first reflective layer RL1 is formed by ink coating, for example, the coating thickness, ink viscosity, and coating area must be strictly controlled; otherwise, the original perforations in the copper foil substrate are easily filled by ink flow, reducing the depth of the reflective microstructure and the reflective diffusion effect.

[0033] Furthermore, even if the circuitry of the light-emitting lamp board (LCB) is not based on copper foil, lacking both thick copper circuitry and copper mesh reinforcement to strengthen the LCB structure, microstructures with diffusion effects can still be formed on the first reflective layer RL1. For example, micro-dot ink can be printed on the first reflective layer RL1 to form concave / convex areas as microstructure regions MS; alternatively, ink with larger reflective particles can be used to simultaneously form concave / convex areas as microstructure regions MS during the spraying or printing of the first reflective layer RL1; or, if the first reflective layer RL1 is a reflective film, any reflective film surface with medium to low flatness and an uneven reflective surface can serve as a microstructure region MS.

[0034] In this embodiment, within the range of a single button KS, multiple microstructure regions MS include two internal microstructure regions IMS and two external microstructure regions OMS. The two internal microstructure regions IMS are located between two non-intersecting wires LT and HT, and the two external microstructure regions OMS are located outside the two non-intersecting wires LT and HT. The patterns of the two internal microstructure regions IMS may differ from the patterns of the two external microstructure regions OMS, but are not limited thereto. The light-emitting unit LED is located between the multiple microstructure regions MS; that is, the light-emitting unit LED is located between the two internal microstructure regions IMS and also between the two external microstructure regions OMS.

[0035] In this embodiment, two non-intersecting conductors STa and STb divide two internal microstructure regions IMS, and therefore the two non-intersecting conductors STa and STb are also located between the two internal microstructure regions IMS. Similarly, two non-intersecting conductors LT and HT divide one external microstructure region OMS and two internal microstructure regions IMS respectively, so it can also be said that the two non-intersecting conductors LT and HT are located between one external microstructure region OMS and two internal microstructure regions IMS respectively. In some embodiments, the aforementioned multiple microstructure regions MS, whether external microstructure regions OMS or internal microstructure regions IMS, do not overlap with the two non-intersecting conductors LT and HT, nor with the two non-intersecting conductors STa and STb; for example, this is the case when the circuit of the light-emitting board LCB is made of copper wires and copper mesh. If the microstructure regions MS on the first reflective layer RL1 are only surface treated and not formed from the copper mesh or other substrate below, the multiple microstructure regions MS / OMS / IMS may overlap with the two non-intersecting conductors LT and HT, or with the two non-intersecting conductors STa and STb. The light guide plate (LGP) has a light guide hole (L0), and the light-emitting unit (LED) is located within the light guide hole (L0). The top surface of the light guide plate (LGP) near the light guide hole (L0) may have adhesive surrounding the light guide hole (L0) to adhere the light shield (SS), and / or the bottom surface of the light guide plate (LGP) near the light guide hole (L0) may have adhesive surrounding the light guide hole (L0) to adhere the light-emitting lamp board (LCB). Furthermore, the light guide plate (LGP) also has multiple microstructure regions (LMS), the multiple microstructure regions (LMS) of the light guide plate (LGP) corresponding to the positions of the inner hole (Sc) and peripheral hole (SUPH) of the base plate (SUP), in order to guide the light transmitted within the light guide plate (LGP) upwards. Below the orthographic projection of the peripheral holes SUPH of the base plate SUP, the microstructure region LMS of the light guide plate LGP can at least partially overlap with multiple microstructure regions MS of the first reflective layer RL1 of the backlight plate LCB. In particular, this can increase the light emission effect through the inner hole Sc and the peripheral hole SUPH, and enhance the brightness of the corner symbol (outer light-transmitting area KC1) of the keycap KCC. The internal microstructure region IMS on the first reflective layer RL1 of the backlight plate LCB, near the light-emitting unit LED, can be used as an optical adjustment method. When the light emission near the light-emitting unit LED is excessively weakened, for example, when the area of ​​the inner shielding part ML0 of the shielding layer ML of the light shield SS is too large, or when the light transmittance of the inner reflective part RL0 of the second reflective layer RL2 is too low, the internal microstructure region IMS on the first reflective layer RL1 of the backlight plate LCB, near the light-emitting unit LED, can enhance the light emission effect through the inner hole Sc or the inner light-transmitting area KC0 of the keycap KCC.

[0036] A preferred approach to optimizing the configuration of the aforementioned multiple microstructure regions MS / OMS / IMS is to arrange the two non-intersecting wires STa and STb, along with the other two non-intersecting wires LT and HT, to overlap with any rib or frame area of ​​the base plate SUP (such as the annular rib Sr0, bridging rib Sr1, or support frame Sf). In this way, the aforementioned multiple microstructure regions MS / OMS / IMS can correspond to the microstructure region LMS of the light guide plate LGP, the peripheral hole SUPH or inner hole Sc of the base plate SUP, and even the internal light-transmitting area KC0 and the external light-transmitting area KC1 of the keycap KCC. Furthermore, the multiple microstructure regions MS / OMS / IMS may overlap with the annular rib Sr0, bridging rib Sr1, or support frame Sf of the base plate SUP. Although light cannot escape from these locations, the microstructure regions MS / OMS / IMS can assist in guiding the light escaping from the light guide plate LGP back into the light guide plate LGP for recycling, which helps the subsequent light emission effect of the outermost or even adjacent key KS. Of course, the aforementioned microstructure regions MS / OMS / IMS can also overlap with the second reflective layer RL2 of the light shield SS, including overlapping with the inner reflective portion RL0 and the outer frame portion of the second reflective layer RL2, all of which help to recover light into the light guide plate LGP.

[0037] A light-shielding plate SS is disposed above multiple microstructure regions MS. The light-shielding plate SS comprises a masking layer ML, a second reflective layer RL2, and a protective layer PL, wherein the masking layer ML, the second reflective layer RL2, and the protective layer PL can be stacked on top of each other in various ways. For example, any one of the masking layer ML, the second reflective layer RL2, and the protective layer PL can be stacked on top, in the middle, or at the bottom of the light-shielding plate SS to form the light-shielding plate SS. The masking layer ML is opaque. The second reflective layer RL2 can simultaneously have reflective and semi-transparent properties; that is, the second reflective layer RL2 can reflect some light while allowing some light to pass through. The masking layer ML can be black paint, and the second reflective layer RL2 can be white paint, but is not limited thereto. In this embodiment, the masking layer ML has a masking layer hole MLH and an inner masking portion ML0 located within the masking layer hole MLH, and the second reflective layer RL2 has a reflective layer hole RLH and an inner reflective portion RL0 located within the reflective layer hole RLH. The aperture MLH in the masking layer can be greater than, equal to, or smaller than the aperture RLH in the reflective layer, and the inner masking portion ML0 can be greater than, equal to, or smaller than the inner reflective portion RL0, depending on the desired light-emitting effect. Both the inner masking portion ML0 and the inner reflective portion RL0 are located above the light-emitting unit LED. In this embodiment, the inner masking portion ML0 and / or the inner reflective portion RL0 above the light-emitting unit LED are at least partially projected between two non-intersecting wires LT, HT or two non-intersecting wires STa, STb.

[0038] Each button KS comprises a portion of the base plate SUP. In this embodiment, the base plate SUP has an inner hole Sc, an annular rib Sr0, multiple bridging ribs Sr1, and a support frame Sf, wherein the annular rib Sr0 surrounds the inner hole Sc, and the multiple bridging ribs Sr1 connect the annular rib Sr0 and the support frame Sf. Furthermore, there are multiple peripheral holes SUPH between the bridging ribs Sr1, the annular rib Sr0, and the support frame Sf. In this embodiment, the two internal microstructure regions IMS at least partially overlap with the projections of the inner hole Sc, the annular rib Sr0, the multiple bridging ribs Sr1, and / or the support frame Sf. Furthermore, the two external microstructure regions OMS at least partially overlap with the projections of the annular rib Sr0, the multiple bridging ribs Sr1, and / or the support frame Sf.

[0039] The keycap KS comprises a keycap KCC, a support device SSR, a circuit board MEM, and a base plate SUP. The keycap KCC is positioned relative to the base plate SUP. The keycap KCC has an internal light-transmitting area KC0 and multiple external light-transmitting areas KC1, with the opaque area KC2 surrounding the internal light-transmitting area KC0 and the multiple external light-transmitting areas KC1. The positions of the internal light-transmitting area KC0 and the external light-transmitting areas KC1 correspond to the positions of the inner hole Sc and the peripheral hole SUPH of the base plate SUP, respectively, allowing light emitted by the LED light-emitting unit to be projected from the internal light-transmitting area KC0 and the multiple external light-transmitting areas KC1 of the keycap KCC through the light guide plate LGP, the light shield SS, and the inner hole Sc and the peripheral hole SUPH of the base plate SUP. The support device SSR is positioned between the keycap KCC and the base plate SUP. When the keycap KCC is pressed, the keycap KCC moves vertically towards the base plate SUP along with the support device SSR. In addition, a reset element (not shown in the figure) is provided between the keycap KCC and the base plate SUP, but this is not a limitation. The circuit board MEM has a switch corresponding to the key KS, such as a membrane switch or other trigger switch.

[0040] From a top view, the light-emitting unit LED, light guide hole L0, internal reflective portion RL0, internal shielding portion ML0, inner hole Sc, internal light-transmitting area KC0, and the adhesive around the light guide hole L0 can be located between two non-intersecting conductors LT, HT and / or two non-intersecting conductors STa, STb. In other words, The light-emitting unit LED, the light guide plate hole L0, the internal reflective part RL0, the internal shielding part ML0, the inner hole Sc, the internal light-transmitting area KC0, and the adhesive around the light guide hole L0 can be located between two internal microstructure regions IMS.

[0041] like Figure 4As shown, the backlight module BLM also includes a protruding structure BP, the position of which corresponds to the position of the light-emitting unit LED, and the protruding structure BP is located between two non-intersecting wires LT and HT. Furthermore, the protruding structure BP is also located between multiple microstructure regions MS, that is, between two internal microstructure regions IMS and between two external microstructure regions OMS. In this embodiment, the protruding structure BP is formed on the light-emitting plate LCB, and the protruding structure BP forms a groove IP to accommodate the light-emitting unit LED, such that the upper surface of the light-emitting unit LED is flush with the upper surface of the light guide plate LGP, or the upper surface of the light-emitting unit LED is lower than the upper surface of the light guide plate LGP but higher than the lower surface of the light guide plate LGP. Since the light-shielding plate SS is disposed on the light guide plate LGP, the upper surface of the light-emitting unit LED is also flush with or lower than the lower surface of the light-shielding plate SS, so that the light-shielding plate SS can remain flat and will not be pushed by the light-emitting unit LED and partially enter the inner hole Sc of the base plate SUP. This increases the amount of light entering the light guide plate LGP from the LEDs, thereby improving the overall consistency of light emission. Furthermore, the circuit board MEM can have a switch corresponding to the inner hole Sc of the base plate SUP, allowing the switch to partially enter the inner hole Sc of the base plate SUP without interfering with the SS light shield and the LEDs below it.

[0042] Please see Figure 5 as well as Figure 6 , Figure 5 This is a partial top view of an illuminated keyboard LKB according to another embodiment of the present invention. Figure 6 for Figure 5 A partial cross-sectional view of the backlit keyboard (LKB) in the image. (See image for details.) Figure 5 and Figure 6As shown, the base plate SUP may not have the aforementioned inner hole Sc. In this case, the light-shielding plate SS remains flat and will not be pushed by the light-emitting unit LED. When the base plate SUP does not have the inner hole Sc, the keycap KCC may not have an internal light-transmitting area KC0. However, if the keycap KCC has an internal light-transmitting area KC0, light can be emitted from the peripheral holes SUPH around the central area of ​​the keycap KCC, so that light is projected from the internal light-transmitting area KC0 without the inner hole Sc. In this embodiment, the two non-intersecting wires HT and LT may overlap with the projection of at least one of the projections of at least one of the external light-transmitting areas KC1. As long as the two non-intersecting wires HT and LT satisfy at least one of the following three conditions, the two non-intersecting wires HT and LT will not affect the light emission of the external light-transmitting area KC1 of the keycap KCC. Condition 1: The two non-intersecting wires HT and LT overlap with the projections of the annular rib Sr0, bridging rib Sr1 and / or support frame Sf of the base plate SUP. Condition 2: The projections of the two non-intersecting conductors HT and LT overlap with the projections of the shielding layer ML and / or the second reflective layer RL2 of the light-shielding plate SS. Condition 3: The projections of the two non-intersecting conductors HT and LT overlap with the projections of the opaque area KC2 of the keycap KCC.

[0043] Please see Figure 7 , Figure 7 This is a partial cross-sectional view of an illuminated keyboard LKB according to another embodiment of the present invention. Figure 7 As shown, the protruding structure SP of the backlight module BLM can be formed on the light shield SS, with the light-emitting unit LED located below the protruding structure SP. The position of the protruding structure SP corresponds to the position of the light-emitting unit LED, and the protruding structure SP is located between two non-intersecting wires LT and HT. Furthermore, the protruding structure SP is also located between multiple microstructure regions MS, that is, between two internal microstructure regions IMS and between two external microstructure regions OMS. In this embodiment, the protruding structure SP can be lower than or slightly inserted into the inner hole Sc of the base plate SUP, and the upper surface of the light-emitting unit LED is flush with the upper surface of the light guide plate LGP, or the upper surface of the light-emitting unit LED is lower than the upper surface of the light guide plate LGP, or the upper surface of the light-emitting unit LED is lower than the lower surface of the light shield SS. It should be noted that the protruding structure SP can be pressed back, so that the top of the light shield SS below the base plate SUP has a flat surface. Figure 7 In the process, the effect of the protruding structure SP formed on the light shield SS can be attributed to the fact that the internal reflective portion RL0 above the light-emitting unit LED on the light shield SS has an arc or slope due to the protruding structure SP. Because the reflection angle provided by the flat internal reflective portion RL0 is small, it is difficult to guide the upward-shielding light directly into the light guide plate LGP through the hole wall of the light guide plate L0.

[0044] Please see Figure 8 , Figure 8This is a partial cross-sectional view of an illuminated keyboard LKB according to another embodiment of the present invention. Figure 8 As shown, the upper surface of the light-emitting unit (LED) can be higher than the upper surface of the light guide plate (LGP) and lower than the lower surface of the light shield (SS). In other words, the upper surface of the LED can be located between the upper surface of the LGP and the lower surface of the SS. Alternatively, if necessary, the LED can extend beyond the upper surface of the LGP. For example, the protruding structure SP can accommodate the thickness of the SS itself and the thickness of its upper and lower adhesive layers to provide space for the LED. In this case, the upper surface of the LED will be located between the lower surface of the base plate (SUP) and the upper surface of the LGP. Therefore, when the upper surface of the LED is higher than the upper surface of the LGP, the protruding structure SP provides space to accommodate the LED, preventing interference between the LED and the SS.

[0045] Please see Figure 9 , Figure 9 This is a partial cross-sectional view of an illuminated keyboard LKB according to another embodiment of the present invention. Figure 9 As shown, the backlit keyboard LKB may not include... Figure 4 The prominent structure BP shown is or Figure 7 The protruding structure SP is shown. In this embodiment, the upper surface of the light-emitting unit LED is flush with the upper surface of the light guide plate LGP, or the upper surface of the light-emitting unit LED is lower than the upper surface of the light guide plate LGP but higher than the lower surface of the light guide plate LGP. This increases the amount of light emitted by the light-emitting unit LED entering the light guide plate LGP, thereby improving the overall uniformity of light emission.

[0046] Please see Figure 10 , Figure 10 for Figure 1 Another partial top view of the backlit keyboard LKB. (See attached image.) Figure 10As shown, multiple external microstructure regions (OMS) and multiple internal microstructure regions (IMS) at least partially overlap with the projections of the gaps Gx and Gy between any two adjacent buttons KS1, KS2, and KS3. Three adjacent buttons KS1, KS2, and KS3 may have three adjacent external microstructure regions (OMS), wherein the three adjacent external microstructure regions (OMS) are combined in the X and Y directions. Two external microstructure regions (OMS) located outside the two non-intersecting conductors of the light-emitting plate LCB below a button KS may have the same pattern, and may have the same size, shape, and distance (outside the conductors) in the two identical regions. Within the projection range of a single button KS (e.g., a square button), two external microstructure regions (OMS) may have different patterns defined by the button KS. For two adjacent buttons KS in the Y direction, two adjacent external microstructure regions (OMS) may have different patterns defined by the two adjacent buttons KS.

[0047] Please see Figure 11 , Figure 11 for Figure 1 Another partial top view of the backlit keyboard LKB. (See attached image.) Figure 11As shown, a hole BH can be made on the light-emitting panel LCB, where the hole BH is used for fixing or heat dissipation. A shielding part MP can be provided on the light-emitting panel LCB, where the shielding part MP surrounds the hole BH to block and absorb light, preventing light leakage from the hole BH. In practical applications, the shielding part MP can be a light-absorbing or opaque substrate from the light-emitting panel LCB, that is, the first reflective layer RL1, the circuit layer, and the insulating layer (if necessary) above the substrate of the light-emitting panel LCB are all made with holes larger than the hole BH, so as to expose the shielding part MP surrounding the hole BH. Another approach in practical applications is to coat the upper surface of the first reflective layer RL1 of the light-emitting panel LCB with another layer of shielding part MP surrounding the hole BH, in which case the hole size of the first reflective layer RL1 is similar to that of the hole BH. The hole BH and the shielding part MP on the light-emitting panel LCB can correspond to the hole and shielding part on the light-shielding plate SS (not shown in the figure). The adhesive HA on the light-emitting plate LCB can be disposed on the shielding portion MP and surround the plate hole BH. The pore HC does not overlap with the external microstructure region OMS or any microstructure. The pore HC without the first reflective layer RL1 can be defined between the first reflective layer RL1 and the plate hole BH. The pore HC without adhesive can be defined between the adhesive HA and the plate hole BH. The internal microstructure region IMS (between two non-intersecting wires HT, LT and / or two non-intersecting wires STa, STb) does not overlap with the plate hole BH, the adhesive HA, and / or the pore HC. Multiple buttons KS1, KS2, KS3 adjacent in the X and / or Y directions can have adjacent external microstructure regions OMS that collectively surround the shielding portion MP, the plate hole BH, the adhesive HA, and / or the pore HC. The masking portion MP, plate hole BH, adhesive HA, and / or aperture HC are located between the two non-intersecting wires HT and LT of the corresponding button KS1 and the two non-intersecting wires HT and LT of the corresponding buttons KS2 and KS3. More specifically, the masking portion MP, plate hole BH, adhesive HA, and / or aperture HC can be located between the wire LT of the corresponding button KS1 and the wire HT of the corresponding buttons KS2 and KS3. It should be noted that the masking portion MP, adhesive HA, and aperture HC are schematically illustrated in [the provided text]. Figure 11 The same location in the text. However, the definitions of the masking part MP, the pore adhesive HA, and the pores HC can be clearly understood from the above explanation.

[0048] In summary, this invention improves the overall light emission consistency by ensuring that multiple microstructure regions on the light panel do not overlap with two non-intersecting wires, thereby utilizing the specially configured microstructure regions on the light-emitting panel to recover light or assist in light emission. Furthermore, although this invention is designed to address the application problems of low-power light-emitting units, it is also applicable to the application of medium- and high-power light-emitting units in backlight modules.

[0049] Furthermore, in addition to ensuring uniform brightness of the characters (e.g., the internal light-transmitting area KC0 and the external light-transmitting area KC1) on each keycap KCC, the halo around each keycap must also achieve uniform illumination. First, the halo around the four edges of a single key must be consistent; second, for two key areas with symmetrical shapes and sizes (e.g., two columns of keys with similar overall lengths), the halo around the corresponding areas must also be uniform. Specifically, most keys KS on the backlit keyboard LKB have the same short side length (Y direction), but their long side lengths (X direction) are not identical. The 26 English letter keys and the row of number keys above them are either single-size or square keys. When the keycaps are the same size, combined with light-emitting windows of the same size on the light-shielding plate SS (e.g., achieved through the reflective layer holes RLH and / or the light-shielding layer holes MLH as described in the previous embodiment), each keycap KCC can achieve similar halo brightness. However, when the keycaps in two key areas are of different sizes, especially when a row of multiple square keys is placed side by side with a row of larger multi-size keys, the inconsistency between the upper and lower contour halos of these two key areas (two rows of keys KS1 / KS2) becomes particularly noticeable. However, in practical applications, adjusting the size of the light-emitting window alone is not easy. If the light-emitting window is too large, high-brightness areas of the backlight module (BLM) microstructure area (MS) are easily exposed through the gaps around the keycaps; if the light-emitting window is too small, the halo brightness will be significantly reduced. The following embodiments of the present invention will introduce several technical solutions to address these problems.

[0050] Please see Figures 12A to 12D . Figure 12A This is a partially exploded view of another embodiment of the illuminated keyboard of the present invention. Figure 12B for Figure 12A A partial exploded view of the backlight module in the embodiment. Figure 12C for Figure 12B A partial top view of the backlight module's lamp panel. Figure 12D for Figure 12B A partial top view of the light shield of the backlight module. Figure 12AIn the diagram, the upper row includes five (first) keys KS1 (characters C / V / B / N / M), corresponding to at least one (second) key KS2 (space key) in the lower row. Although the area of ​​each key KS1 is the same, and the area of ​​each key KS2 is different from that of each key KS1, the overall perimeter of these five square keys (key KS1) is similar in shape and size to the space key (key KS2). Each of the five key KS1 keycaps KCC has an internal light-transmitting area KC0, while the keycaps KCC of key KS2 do not have characters that require backlighting. The outline halos of the upper row key KS1 and the lower row key KS2 illuminate around their respective key skirts to show the boundaries of individual keys. Furthermore, the outline halos of each of the five upper row key KS1 keys also contribute to the overall perimeter boundary; the overall perimeter boundary of the five upper row key KS1 keys is almost symmetrical to the longer boundary of the lower row key KS2. Since the keycap skirt of keycap KCC is the location of the halo light emission, in this embodiment, the outer contiguous area of ​​the boundaries of the keycap KCC of the five keys KS1 listed above is defined as the first halo area A1, and the boundary of the keycap KCC of keycap KS2 is defined as the second halo area A2. The areas of the first halo area A1 and the second halo area A2 are almost the same. The long side of the first halo area A1 is equivalent to the first long side L1 of the overall outer boundary of the five keys KS1 listed above; however, since the five keys KS1 are designed with intervals, the length of the first long side L1 is equal to the side length Lx of the five keycaps plus the four gaps Gx. The length of the long side of the second halo area A2 is equivalent to the length of the second long side L2 of the following key KS2.

[0051] refer to Figure 12B and Figure 12D On the light-shielding plate SS, multiple (five) first light-emitting windows OW1 are defined corresponding to the positions of the five buttons KS1 and the first halo area A1. Each first light-emitting window OW1 can be implemented using either a reflective layer aperture RLH or a light-shielding layer aperture MLH. Conversely, at least one second light-emitting window OW2 is defined corresponding to the positions of the buttons KS2 and the second halo area A2. The second light-emitting window OW2 can also be implemented using either a reflective layer aperture RLH or a light-shielding layer aperture MLH. The reflective layer aperture RLH of the first light-emitting window OW1 and the second light-emitting window OW2 can be greater than, less than, or equal to the light-shielding layer aperture MLH, or only one of the reflective layer aperture RLH or the light-shielding layer aperture MLH can be used. (See also...) Figure 9 , Figure 12B and Figure 12DOn the second reflective layer RL2 or the masking layer ML of the light-shielding plate SS, a plurality of first light-emitting windows OW1 define a first frame pattern Pf1, which includes a plurality of (5) (first) frame portions Pf0 surrounding the plurality of first light-emitting windows OW1. Conversely, at least one second light-emitting window OW2 defines at least one second frame pattern Pf2, which includes at least one (second) frame portion Pf0 surrounding the at least one second light-emitting window OW2. Since the short sides of the buttons KS1 / KS2 are the same, the length of the first window WL1 of the overall periphery of the plurality of first light-emitting windows OW1 is also the same as the length of the second window WL2 of the second light-emitting window OW2. That is to say, the area or size of the first halo area A1 corresponding to the plurality of first light-emitting windows OW1 is the same as the area or size of the second halo area A2 corresponding to the second light-emitting window OW2.

[0052] Figure 12B and Figure 12D In the diagram, the first frame pattern Pf1 and the second frame pattern Pf2 are different from each other. Multiple first patterns Pb1 constitute the first column pattern Pr1, and multiple second patterns Pb2 constitute the second column pattern Pr2. Ultimately, the first column pattern Pr1 and the second column pattern Pr2 are different from each other. It seems impossible to obtain an outline halo in the second halo area A2 that is similar to that in the first halo area A1. Generally, to achieve a consistent overall outline halo, the second halo area A2 can be set up similarly to the first halo area A1, using five small second light-emitting windows OW2 corresponding to the five first light-emitting windows OW1. However, in this case, the second frame pattern Pf2 generates four frame ribs Fr corresponding to the first frame pattern Pf1, making it impossible to generate a halo on the continuous boundary of the second halo area A2 of the space key (key KS2), which means it is impossible to take into account the single-key boundary halo of key KS2 itself. Conversely, the first halo area A1 could be designed similarly to the second halo area A2, using only a single, narrow, integrated first light-emitting window OW1 to cover the five keys KS1. The drawback is that with the four missing frame ribs Fr, the adjacent sides of the keycaps KCC on the five keys KS1 will be particularly bright, meaning it's impossible to simultaneously maintain the individual key boundary halo of the five keys KS1 themselves. Therefore, this embodiment of the invention needs to introduce additional technical means to solve the above problems. (Reference) Figure 12B , Figure 12C and Figure 12DThe dashed lines represent elements located on other layers of the backlit keyboard LKB, or elements without clearly defined boundaries. The light-shielding plate SS has multiple first patterns Pb1 and multiple second patterns Pb2. The multiple first patterns Pb1 are correspondingly positioned within the first light-emitting window OW1, and the multiple second patterns Pb2 are correspondingly positioned within the second light-emitting window OW2. Each first pattern Pb1 and second pattern Pb2 is composed of an inner shielding portion ML0 and / or an inner reflective portion RL0. The inner shielding portion ML0 and / or the inner reflective portion RL0 can be of equal size, or one of them can be larger. Alternatively, the first pattern Pb1 or the second pattern Pb2 can be composed of only one of the inner shielding portion ML0 and / or the inner reflective portion RL0. In applications using multi-color LEDs, each first pattern Pb1 and second pattern Pb2 may also include a colored paint layer to assist in light mixing.

[0053] Multiple first patterns Pb1 and multiple second patterns Pb2 overlap with multiple light-emitting units (LEDs). Because the number of LEDs in the two columns differs, the number of (five) first patterns Pb1 differs from the number of (three) second patterns Pb2; similarly, the positions of the two columns of LEDs are also different, so the position of the first patterns Pb1 differs from that of the second patterns Pb2. Furthermore, the multiple first patterns Pb1 and their corresponding LEDs are relatively centered, but the multiple second patterns Pb2 and their corresponding LEDs are closer to the two opposite long sides of the second light-emitting window OW2. Also, there are fewer second patterns Pb2 and their corresponding LEDs near the first light-emitting window OW1. This is because a small amount of light is transmitted from below the five buttons KS1 to the second light-emitting window OW2 below the buttons KS2 via the light guide plate LGP, which can compensate for the insufficient light on that side. Each first pattern Pb1 can be identical to the others to improve the consistency of character backlighting and outline halo between individual keys; however, each first pattern Pb1 is different from the second pattern Pb2 to achieve halo uniformity. For example, although the internal masking portion ML0 of the first pattern Pb1 and the second pattern Pb2 are similar in size, the first pattern Pb1 has a larger internal reflective portion RL0. This is because the key KS1 needs to illuminate the internal light-transmitting area KC0 (characters C / V / B / N / M), and the internal reflective portion RL0 can prevent excessive and glaring light from emanating from the internal light-transmitting area KC0 (characters C / V / B / N / M). In contrast, the internal reflective portion RL0 of the second pattern Pb2 is smaller. Firstly, it does not have the concern of the internal light-transmitting area KC0, and secondly, it must consider the single-key halo on the long side, short side, and corner of the key KS2, that is, the halo boundary of the second halo area A2, thus allowing more light to be emitted directly. For example, using the aforementioned embodiments, various microstructure regions MS or microstructure layers MSL on the first reflective layer RL1 of the light guide plate LGP or the light-emitting plate LCB are used to add light emission through the second light-emitting window OW2.

[0054] For the single-key outline halo of a multiple-number key like KS2, the first light path (delayed upward emission) is to allow light to travel far within the light guide plate LGP. This is essential for the application of low-brightness LED units. The second light path involves earlier upward emission of light. This can be achieved through reflection and diffusion between the keycap KCC and the base plate SUP of the KS2 key (without characters), or between the keycap KCC and the first reflective layer RL1 of the LED panel LCB (exposed to the second light emission window OW2). Finally, the light exits from the gap between the keycap KCC and the base plate SUP, thus creating the single-key halo of the KS2 key, or the outline halo of the second halo area A2. Furthermore, a microstructure region MS (or microstructure layer MSL) can be set in the exposed area of ​​the first reflective layer RL1 of the light guide plate LGP or the LED panel LCB below the second light emission window OW2 to overlap with the second light emission window OW2, allowing light to enter the second light path. Therefore, the microstructure region MS near the edge of the second light-emitting window OW2 can provide light from the first light path that emits light later; the microstructure region MS near the multiple second pattern Pb2 can provide light from the second light path that emits light earlier. The microstructure region MS / microstructure layer MSL set on the first reflective layer RL1 of the light-emitting lamp plate LCB has a crucial influence. Firstly, because in the application of low-brightness light-emitting units (LEDs), the lateral transmission distance of light is limited, making light recovery crucial; secondly, because the second light-emitting window OW2 covers two fewer light-emitting units (LEDs) than the first light-emitting window OW1, the microstructure region MS / microstructure layer MSL on the first reflective layer RL1 of the light-emitting lamp plate LCB can recover light and assist in light emission, compensating for the shortcomings of the light guide plate LGP.

[0055] After all, for the button KS2 without characters, there is no need for the second pattern Pb2 or the second column pattern Pr2 to block the light emitted by the LED. The presence of the second pattern Pb2 or the second column pattern Pr2 helps to adjust the proportion of light transmitted by the LED through the first or second light path within the second light emission window OW2. Therefore, under the premise of other unfavorable conditions, this embodiment uses different configurations of the first column pattern Pr1 and the second column pattern Pr2 to achieve the purpose of uniformity of the outline halo.

[0056] Figure 12CThe configuration of the circuitry and microstructure regions MS on the LCB (Light Radiator Block) can be observed. Two pairs of non-intersecting (main) conductors HT / LT are connected via five buttons KS1 (listed above) and one button KS2 (listed below). Multiple first patterns Pb1 are located between pairs of non-intersecting (main) conductors HT / LT, and multiple second patterns Pb2 are also located between another pair of non-intersecting (main) conductors HT / LT. In practical applications, each first pattern Pb1 and each second pattern Pb2 is located between a pair of non-intersecting (sub) conductors STa / STb. As in the previous embodiment, the microstructure arrangement does not overlap with the main HT / LT or sub-conductors STa / STb. Multiple first patterns Pb1 are located between pairs of external microstructure regions OMS, and multiple second patterns Pb2 are also located between another pair of external microstructure regions OMS; these external microstructure regions OMS are located outside the pair of non-intersecting main conductors HT / LT. Simultaneously, each first pattern Pb1 is located between a pair of internal microstructure regions (IMS), and each second pattern Pb2 is also located between another pair of internal microstructure regions (IMS). These internal microstructure regions (IMS) are located within a pair of non-intersecting main conductors HT / LT and on opposite sides of a pair of non-intersecting sub-conductors STa / STb. The internal microstructure regions (IMS) and external microstructure regions (OMS) on the first reflective layer RL1 of the light-emitting plate LCB can assist in recovering the light emitted from the light guide plate LGP back to the light guide plate LGP. Since the internal microstructure regions (IMS) and external microstructure regions (OMS) have omnidirectional reflection / diffusion effects, they also indirectly increase the light output from the light guide plate LGP.

[0057] In summary, Figures 12A to 12DAn embodiment provides a backlight module (BLM) comprising a light-emitting panel (LCB) and a light-shielding plate (SS). The LCB includes multiple light-emitting units (LEDs) arranged in two columns. The SS includes multiple first light-emitting windows (OW1) and multiple first patterns (Pb1), each Pb1 corresponding to one of the LEDs, forming a first column pattern (Pr1). The SS also includes at least one second light-emitting window (OW2) and multiple second patterns (Pb2), each Pb2 corresponding to one of the LEDs, forming a second column pattern (Pr2). The plurality of first light-emitting windows OW1 have a first window length WL1 around their periphery, and at least one second light-emitting window OW2 has a second window length WL2. The first window length WL1 and the second window length WL2 are the same length, but the first column pattern Pr1 and the second column pattern Pr2 are different. The light-emitting board LCB may include a pair of non-intersecting (main) conductors HT-LT or a pair of non-intersecting (sub) conductors STa-STb, and the first column pattern Pr2 is at least partially located between the pair of non-intersecting conductors HT-LT (or STa-STb). The light-emitting board LCB may include a pair of spaced-apart external microstructure regions OMS-OMS or a pair of internal microstructure regions IMS-IMS, and at least one of the plurality of first block patterns Pb1 is located between the pair of external microstructure regions OMS-OMS or the pair of internal microstructure regions IMS-IMS. Furthermore, this backlight module BLM is applicable to an illuminated keyboard LKB having at least one first button KS1 and at least one second button KS2, wherein the at least one second button KS2 is arranged parallel to the at least one first button KS1. The at least one first button KS1 has a first long side L1 around its perimeter, and the at least one second button KS2 has a second long side L2. The first long side L1 and the second long side L2 have the same length, but the first column pattern Pr1 and the second column pattern Pr2 are different.

[0058] also, Figure 12CA light-emitting lamp plate (LCB) integrating a light-shielding plate (SS) is disclosed. The LCB includes the light-shielding plate (SS), a plurality of light-emitting units (LEDs) arranged in two rows, a first pair of non-intersecting wires (HT-LT, or STa-STb), and a second pair of non-intersecting wires (HT-LT, or STa-STb). The light-shielding plate (SS) includes a plurality of first light-emitting windows (OW1) and a plurality of first patterns (Pb1). The plurality of first patterns (Pb1) are disposed in the plurality of first light-emitting windows (OW1), and each of the plurality of first patterns (Pb1) corresponds to one of the plurality of light-emitting units (LEDs). The plurality of first patterns (Pb1) constitute a first row of patterns (Pr1). The light-shielding plate (SS) also includes at least one second light-emitting window (OW2) and a plurality of second patterns (Pb2). The plurality of second patterns (Pb2) are disposed in at least one second light-emitting window (OW2), and each of the plurality of second patterns (Pb2) corresponds to one of the plurality of light-emitting units (LEDs). The plurality of second patterns (Pb2) constitute a second row of patterns (Pr2). The first column pattern Pr1 is located between the first pair of non-intersecting conductors HT-LT (or STa-STb), and the second column pattern Pr2 is located between the second pair of non-intersecting conductors HT-LT (or STa-STb). The first column pattern Pr1 is different from the second column pattern Pr2.

[0059] The following is an introduction Figure 12B and Figure 12D Various derivatives of the central light-shielding plate SS. Figure 13A for Figure 12B and Figure 12D A partial top view of a derivative example of a light-shielding plate. Figure 13B for Figure 12B and Figure 12D A partial top view of a derivative example of a light-shielding plate. Figure 13C for Figure 12B and Figure 12D A partial top view of a derivative example of a light-shielding plate. Dashed lines indicate components located on other layers of the backlit keyboard (LKB). Figure 13D for Figure 13C A partial cross-sectional schematic diagram of a derivative example of a light-shielding plate.

[0060] refer to Figure 13A The second light-emitting window OW2 of the light-shielding plate SS has multiple second patterns Pb2 divided into a first group of second patterns Pb2 and a second group of second patterns Pb2. The first group of second patterns Pb2 is positioned higher, and the second group of second patterns Pb2 is positioned lower. The second group of second patterns Pb2 is closer to the multiple first light-emitting windows OW1, and the first group of second patterns Pb2 is farther away from the multiple first light-emitting windows OW1. The number of second patterns Pb2 in the first group (3) is greater than the number of second patterns Pb2 in the second group (2). The number of light-emitting units LEDs corresponding to the first group of second patterns Pb2 is also greater than the number of light-emitting units LEDs corresponding to the second group of second patterns Pb2. This characteristic trend is consistent with... Figure 12B and Figure 12D They are consistent. The difference is that... Figure 13A The first pattern Pb1 and the second pattern Pb2 have the same number of LEDs, and their corresponding number of LED light-emitting units is also the same; in other words, there are two more LEDs within the range of the second light-emitting window OW2. If needed... Figure 13A The arrangement of the microstructure region MS within the second light-emitting window OW2 can reduce density or area, or adjust the ratio of light emitted through the aforementioned first and second optical paths, to accommodate an increase in the number of light-emitting units (LEDs). Furthermore, even with the same number of LEDs, the distribution of multiple second patterns Pb2 along the long axis of the second light-emitting window OW2 does not necessarily require a one-to-one correspondence with multiple first patterns Pb1 to provide a consistent overall peripheral halo with multiple first light-emitting windows OW1.

[0061] refer to Figure 13B Even if the first frame pattern Pf1 and the second frame pattern Pf2 have the same number of shapes, they may still be different from each other due to their different positions. Figure 13B The first pattern Pb1 and the second pattern Pb2 have the same number of elements, and their corresponding number of LED light-emitting units is also the same; this is consistent with... Figure 13A same. Figure 13A , Figure 12B , Figure 12D In the pattern, the first pattern Pb1 and the second pattern Pb2 are not the same, and Figure 13BThe first pattern Pb1 and the second pattern Pb2 are identical. Furthermore, the two outermost second patterns Pb2 (and their two LED light-emitting units) correspond to, or are even completely symmetrical to, the two outermost first patterns Pb1 (and their two LED light-emitting units) in the first light-emitting window OW1. This configuration helps the brightness of the four outermost corner halos of the two outermost corners of the second light-emitting window OW2 to be closer to the brightness of the four outermost corner halos of the two outermost corners of the overall periphery of the multiple first light-emitting windows OW1. Additionally, the second frame pattern Pf2 has one or more notches OP, corresponding to one or more non-light-emitting elements Rs on the light-emitting lamp plate LCB. Since the non-light-emitting elements Rs occupy the space of the first reflective layer RL1 and the external microstructure region OMS, the light emission brightness at this location may be insufficient, resulting in a weak localized outline halo. The notches OP expose more area of ​​the first reflective layer RL1 of the light-emitting lamp plate LCB, or more area of ​​the light guide plate LGP, which can be combined with the microstructure layer MSL located on the first reflective layer RL1 or the light guide plate LGP to compensate for the insufficient outline halo. The spacing between the three second patterns Pb2 in the middle section of the second light-emitting window OW2 is relatively small. This is to prevent the light-emitting units (LEDs) below the second patterns Pb2 from getting too close to the non-light-emitting elements (Rs). Since the light guide plate LGP has openings to accommodate these non-light-emitting elements Rs, there is a risk of light leakage at this location, which also prevents the light guide plate LGP from setting up the microstructure area MS in this area. Maintaining a distance between the light-emitting units (LEDs) and the non-light-emitting elements Rs avoids unnecessary and excessive light leakage at this location, thus resulting in a smaller spacing between the three light-emitting units (LEDs) and the corresponding spacing between the three second patterns Pb2.

[0062] See Figure 13C , Figure 13D and Figure 12D . Figure 12D In the original diagram, the first frame pattern Pf1 differs from the second frame pattern Pf2. However, in practical applications, since the four corner halos of the first halo region A1 and the second halo region A2 have a decisive effect on defining the halo boundary, the first frame pattern Pf1 and the second frame pattern Pf2 can also be locally identical at the four corner locations. For example, Figure 12D The original narrow second light-emitting window OW2 of the second frame pattern Pf2 was shortened to Figure 13C The second exit window OW2a is connected to two smaller second exit windows OW2b, which are similar in shape to the first exit window OW1, on the left and right. Since the shape and size of the two second exit windows OW2b correspond to the shape and size of the first exit window OW1, it can be ensured that the four corner halos of the second halo region A2 are highly similar to the four corner halos of the first halo region A1. Figure 13CSetting the first frame pattern Pf1 and the second frame pattern Pf2 to be locally identical at the four corners can achieve a uniform corner halo effect. The drawback is that the two frame ribs Fr, which are set on both sides of the second frame pattern Pf2 in accordance with the first frame pattern Pf1, are located between the second light-emitting windows OW2a and OW2b. The frame ribs Fr cannot generate a halo at the continuous boundary of the second halo area A2 of the space key (button KS2). In this embodiment, multiple second supplementary light windows OW2c are set at the additional two frame ribs Fr corresponding to the second light-emitting window OW2. Simultaneously, the light guide plate LGP can be equipped with a microstructure layer MSL, which at least partially overlaps with the second supplementary light windows OW2c to assist in light emission. This compensates for the lack of contour halo at this location and, together with the second light-emitting windows OW2a and OW2b, provides a relatively continuous and consistent halo boundary. The light from these second supplementary light windows OW2c can come from the central light-emitting unit LED or the light-emitting units LEDs on both sides. Microstructure layers (MSLs) can also be set on the light-emitting plate (LCB). The overlapping frame ribs (Fr) of the internal microstructure region (IMS) and the external microstructure region (OMS) of the MSL help to recycle light, allow the light to return to the light guide plate (LGP) and emit light upwards or transmit it further.

[0063] However, Figure 13C The larger second light-emitting window OW2a has only one corresponding LED, yet it needs to illuminate a halo boundary of almost the same size as the three LEDs of the three first light-emitting windows OW1 in the middle. Although it doesn't need to illuminate the characters ( Figure 12A The combination of the KS2 button, low-brightness LED light-emitting unit, and LGP light guide plate still results in insufficient light transmission laterally. Therefore, a microstructure layer (MSL) is needed to recycle light as much as possible. (See also...) Figure 13DThe microstructure layer MSL can be simultaneously disposed on the lower surface of the light-shielding plate SS (e.g., the frame microstructure region FMS) and the light-emitting plate LCB (e.g., the internal microstructure region IMS / external microstructure region OMS). The two layers of microstructure layer MSL on the light-shielding plate SS and the light-emitting plate LCB can recycle more escaping light back to the light guide plate LGP. In particular, the microstructure layer MSL of the light guide plate LGP may only need to appear in the second supplementary light window OW2c. Both layers of microstructure layer MSL on the light-shielding plate SS and the light-emitting plate LCB can overlap with the frame rib Fr, which helps to recycle light escaping at the frame rib Fr back to the light guide plate LGP. The microstructure layer MSL overlapping the frame rib Fr, whether disposed in the microstructure region LMS of the light guide plate LGP or in the internal microstructure region IMS / external microstructure region OMS of the light-emitting plate LCB, can be considered as the frame microstructure region FMS. In the method of setting the frame microstructure region FMS in the light-shielding plate SS, in practical applications, it can be formed by a part of the reflective layer RL to form a microstructure with a diffusion effect, or a separate microstructure region MS can be set below the reflective layer RL. For example, the reflective layer RL can be made of ink with large-sized reflective particles. When spraying or printing the reflective layer RL, concave / convex areas or irregular uneven reflective surfaces are formed simultaneously, so that the reflective layer RL itself can form the microstructure region MS; or, another layer of ink or paint can be sprayed or printed below the reflective layer RL as an additional microstructure region MS. These microstructure regions MS set in the light-shielding plate SS do not need to be regular in shape or have a fixed density, as long as they can be easily adjusted through the process (e.g., printing ink).

[0064] The following example relates to two similar keys KS1 / KS2 symmetrically arranged on an illuminated keyboard LKB. Please refer to... Figure 14A and Figure 14B , Figure 14A This is a schematic diagram of a backlit keyboard according to another embodiment of the present invention. Figure 14B for Figure 14A A partial top view of the light-shielding plate in the embodiment.

[0065] The first key, KS1 (like the left Shift key), and the second key, KS2 (like the right Shift key), are two multiple-digit keys located on the same straight line (generally speaking, they are parallel to each other), separated by several square keys (keys KS). Keys KS1 / KS2 have the backlit area of ​​the corresponding keycap KCC (the character shift). Keys KS1 / KS2 are located on opposite sides of the backlit keyboard LKB. Figure 14B(All buttons between the two are omitted). Due to their symmetrical positions and similar sizes and shapes, buttons KS1 / KS2 should generally have symmetrical first patterns Pb1 and second patterns Pb2 within their first and second light-emitting windows OW1 and OW2, respectively. However, this is not the case. The symmetrical first and second patterns Pb1 and Pb2 actually cause uneven and asymmetrical halos to be produced in the first and second light-emitting windows OW1 and OW2. For example, the LEDs corresponding to buttons KS1 / KS2 are in different parallel groups on the LCB (light-emitting board). Slight voltage and current differences result in differences in brightness between the LEDs of buttons KS1 / KS2. Even if the LEDs corresponding to buttons KS1 / KS2 are in the same group on the LCB, poor design of the feed points for high-voltage and low-voltage lines can lead to differences in the voltage and current supplied to the LEDs. Alternatively, because the sides of the LCB are usually where the main lines converge or where non-light-emitting components are placed, requiring more space, this can impact the optical design of buttons KS1 / KS2. Secondly, in the booming gaming keyboard industry, the W / A / S / D keys adjacent to KS1 are considered gaming operation keys and undergo dedicated optical and circuit designs. This also necessitates addressing certain negative effects associated with adjacent KS1 keys. Furthermore, on large keyboards (such as those for 15-17 inch screens), the right Shift key (key KS2) is not a true boundary key; there may be numeric keys to its right. This results in different backlight designs for keys KS1 / KS2, as only one is a boundary key. A more fundamental factor might be the excessive use of low-brightness LEDs on each key KS of the backlit keyboard LKB. An excessive number of LEDs (around 100), too many parallel circuit groups (15 to 20 groups), and the inherent resistance of the circuitry (such as printed silver paste circuitry) can all cause inconsistencies in the base voltage / current, ultimately making it difficult to adjust each LED to the same brightness. To solve the above problems, this embodiment of the invention selects adjusting the first pattern Pb1 and the second pattern Pb2 of the light shield SS as a solution; the advantage is that the light shield SS is a printing process, which is easy to design and relatively inexpensive, all of which are better than the structure of adjusting the light guide plate LGP or the light-emitting plate LCB of the backlight module BLM.

[0066] Figure 14A and Figure 14BIn the diagram, the reflective layer holes RLH of the two keys KS1 / KS2 correspond to each other in pairs, and the light-shielding layer holes MLH are also symmetrical in pairs. The keycap KCC of key KS1 corresponding to the first halo area A1 and the keycap KCC of key KS2 corresponding to the second halo area A2 are similar in size, shape, and area. Similarly, the corresponding first frame pattern Pf1 and second frame pattern Pf2 have similar sizes, shapes, and areas. The first light-emitting window OW1 and the second light-emitting window OW2 have similar sizes, shapes, and areas, and their first window length WL1 and second window length WL2 are the same or differ by 2%-25%. Figure 14A and Figure 14B In this design, the characters are all positioned towards the outer edges. Therefore, the three LEDs are arranged such that two are closer to the characters and further outwards, consequently causing the corresponding two first patterns Pb1 and two second patterns Pb2 to also be positioned outwards. The two first patterns Pb1 and two second patterns Pb2 corresponding to the characters are also close to the short sides of the first and second light-emitting windows OW1 and OW2. The shapes of these first patterns Pb1 and second patterns Pb2 (i.e., the shapes of the internal shielding portion ML0 and / or the internal reflection portion RL0) can have one or more straight edges that are locally parallel to the short sides and two long sides of the corresponding first and second light-emitting windows OW1 and OW2, helping to provide a consistent contour halo. The first pattern Pb1 located in the middle even has the largest internal shielding portion ML0 area, for example, because the corresponding LED is closest to the high-voltage line feed point, resulting in higher brightness due to larger current and voltage, requiring a larger internal shielding portion ML0 area for light fine-tuning. In addition to the factors mentioned above, the two first patterns Pb1 and the two second patterns Pb2 corresponding to the characters must also take into account the uniformity of character brightness and halo brightness. Therefore, the first pattern Pb1 and the second pattern Pb2 are different, and even the three first patterns Pb1 are different from each other, as are the three second patterns Pb2. In the end, the first column pattern Pr1 and the second column pattern Pr2 are different.

[0067] In addition, the uniformity of the halo boundary contributed by the first light-emitting window OW1 and the second light-emitting window OW2 can be adjusted by using a microstructure layer MSL. If the microstructure layer MSL is set on the light guide plate LGP, the local density of the microstructure region MS can be used to directly change the local light output. If the microstructure layer MSL is set on the light shield SS (only overlapping with the first frame pattern Pf1 and the second frame pattern Pf2), or on the light-emitting plate LCB, the local density of the microstructure region MS can also be used to directly change the local amount of light recovered into the light guide plate LGP, and indirectly change the amount of light that can be guided out by the microstructure layer MSL of the light guide plate LGP.

[0068] Of course, the microstructure layer MSL of the light-shielding plate SS is the easiest to modify and relatively inexpensive. Although the microstructure layer MSL of the light-shielding plate SS is only set where it overlaps with the first frame pattern Pf1 and the second frame pattern Pf2, it can still contribute to the edge light emission of the first light-emitting window OW1 and the second light-emitting window OW2. At the junction of the first light-emitting window OW1 and the first frame pattern Pf1, and near the junction of the second light-emitting window OW2 and the second frame pattern Pf2, the microstructure layer MSL of the light-shielding plate SS can reflect the escape light of the light-emitting units LEDs corresponding to the two buttons KS1 / KS2 back to the light guide plate LGP and locally redirect it (towards the internal light-emitting unit LEDs). This is because the diffusion range of the microstructure layer MSL is actually close to a hemispherical shape. Therefore, light that was originally far away from the internal light-emitting unit LEDs can return to the first light-emitting window OW1 and the second light-emitting window OW2 in small amounts from below the first frame pattern Pf1 and the second frame pattern Pf2.

[0069] As previously mentioned, light from adjacent buttons KS may continue to be transmitted to below buttons KS1 / KS2 via the light guide plate LGP. If the light from the external light-emitting units (LEDs) of adjacent buttons KS escapes at the point where it overlaps with the first frame pattern Pf1 and the second frame pattern Pf2, the amount of light returning to the light guide plate LGP can be controlled by adjusting the microstructure layer MSL of the light shield SS at that location. This adjusts the amount of light that can be emitted at the boundary between the first light-emitting window OW1 and the second light-emitting window OW2, ultimately contributing to halo uniformity.

[0070] The embodiments of this invention mention microstructure regions MS / LMS, internal microstructure regions IMS, and external microstructure regions OMS, all of which are regions composed of multiple microstructures. In practical applications, any microstructure region MS, frame microstructure region FMS, and internal microstructure region IMS / external microstructure region OMS can be selectively integrated and disposed on one or more microstructure layers MSL. For example, in Figures 2 to 11 The (first layer) microstructure layer MSL can contain the internal microstructure region IMS and the external microstructure region OMS of the first reflective layer RL1 simultaneously disposed in the light-emitting lamp panel LCB. Figure 13D The second microstructure layer (MSL) can be a frame microstructure region (FMS) set on the light-shielding plate (SS). If necessary, a third microstructure layer (MSL) (omitted and not shown) can be set on the light guide plate (LGP), which may contain multiple microstructure regions (LMS) (see...). Figure 3Multiple microstructure regions LMS correspond vertically to the frame microstructure region FMS of the light-shielding plate SS and the internal microstructure region IMS / external microstructure region OMS of the first reflective layer RL1 of the light-emitting lamp plate LCB. Of course, the uneven structure of the first reflective layer RL1 on the light-emitting lamp plate LCB caused by covering the conductors HT / LT / STa / STb can also be regarded as a linear microstructure region MS of the microstructure layer MSL on the light-emitting lamp plate LCB.

[0071] In summary, the present invention provides an illuminated keyboard, a backlight module, and an illuminated light panel. It optimizes the configuration of the frame / block pattern of the light shield and makes full use of the microstructure layer from different locations to recycle light, thereby improving the problem of uneven halo in local areas. It can not only achieve a uniform halo effect in multiple areas, but also take into account the uniformity of the halo of each key in the area.

[0072] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A backlight module for illuminating multiple keycaps of a plurality of keys, the plurality of keys comprising a plurality of first keys arranged in the same column and second keys arranged adjacent to each other in another column, the plurality of keycaps comprising multiple columns of keycaps of different sizes, characterized in that, The backlight module includes: The light panel includes multiple light-emitting units, which are arranged in a first column and a second column, and the first column and the second column correspond to two adjacent columns of keycaps of different sizes in the multiple columns of keycaps. as well as A light-shielding panel, comprising: Multiple first light-emitting windows, each corresponding to a multiple first key; the outer concentric area of ​​the keycap boundaries of the multiple first keys is defined as a first halo area, and the multiple first light-emitting windows are located within the first halo area; Multiple first patterns are respectively disposed in the multiple first light-emitting windows, and each of the multiple first patterns corresponds to one of the multiple light-emitting units in the first column. The multiple first patterns are used to adjust the light path of the light emitted by the multiple light-emitting units in the first column, and the multiple first patterns constitute the first column pattern. At least one second light-emitting window, the at least one second light-emitting window corresponding to the second key, the keycap boundary of the second key defined as a second halo area, the at least one second light-emitting window located within the second halo area, the area of ​​the first halo area and the area of ​​the second halo area being the same; and Multiple second patterns are disposed in the at least one second light-emitting window. Each of the multiple second patterns corresponds to one of the multiple light-emitting units in the second column. The multiple second patterns are used to adjust the light path of the light emitted by the multiple light-emitting units in the second column. The multiple second patterns constitute the second column pattern. The first light-emitting windows have a first window length around their overall periphery, and the at least one second light-emitting window has a second window length. The first window length and the second window length are the same, and the first column pattern and the second column pattern are different.

2. The backlight module as described in claim 1, characterized in that, The areas of the multiple first light-exit windows are the same.

3. The backlight module as described in claim 1, characterized in that, The area of ​​the at least one second light-emitting window is different from the area of ​​each of the first light-emitting windows.

4. The backlight module as described in claim 1, characterized in that, The short side length of each of the first light-emitting windows is equal to the short side length of the at least one second light-emitting window.

5. The backlight module as described in claim 1, characterized in that, The first column pattern defines a first frame pattern that surrounds the plurality of first light-emitting windows. The second column pattern defines a second frame pattern that surrounds the at least one second light-emitting window. The first frame pattern is different from the second frame pattern, or the first frame pattern is at least partially the same as the second frame pattern.

6. The backlight module as described in claim 1, characterized in that, The two outermost first light-emitting windows among the plurality of first light-emitting windows are the same as the two outermost second light-emitting windows among the plurality of second light-emitting windows.

7. The backlight module as described in claim 1, characterized in that, The backlight module includes at least one pair of non-intersecting conductors, and the first column pattern is located between the at least one pair of non-intersecting conductors.

8. The backlight module as described in claim 1, characterized in that, The two outermost second patterns in the plurality of second patterns correspond to the two outermost first patterns in the plurality of first patterns in terms of shape and position.

9. The backlight module as described in claim 1, characterized in that, The backlight module includes a light guide plate and at least one microstructure layer, which is located on the surface of at least one of the light shield, the light guide plate and the lamp plate.

10. The backlight module as described in claim 1, characterized in that, The backlight module includes at least one microstructure layer, the light shield includes a second frame pattern, the second frame pattern corresponds to at least one second light-emitting window and the second column pattern, and the at least one microstructure layer overlaps with at least a portion of the second frame pattern.

11. The backlight module as described in claim 1, characterized in that, The at least one second light-emitting window also includes at least one frame rib, which has at least one second supplementary light window.

12. The backlight module as described in claim 1, characterized in that, At least one of the plurality of first patterns is identical to at least one of the plurality of second patterns.

13. The backlight module as described in claim 1, characterized in that, The four corners of the overall periphery of the plurality of first light-emitting windows are symmetrical to the four corners of the at least one second light-emitting window.

14. The backlight module as described in claim 1, characterized in that, The plurality of second patterns are divided into a first group of second patterns and a second group of second patterns. The first group of second patterns is close to the plurality of first light-emitting windows, and the second group of second patterns is far from the plurality of first light-emitting windows. The number of the second group of second patterns is greater than the number of the first group of second patterns.

15. A backlight module for illuminating multiple keycaps of a plurality of keys, the plurality of keys comprising a plurality of first keys arranged in the same column and second keys arranged adjacent to each other in another column, the plurality of keycaps comprising multiple columns of keycaps of different sizes, characterized in that, The backlight module includes: The light panel includes multiple light-emitting units, which are arranged in a first column and a second column, and the first column and the second column correspond to two adjacent columns of keycaps of different sizes in the multiple columns of keycaps. as well as A light-shielding panel, comprising: Multiple first light-emitting windows, each corresponding to a multiple first key, the overall periphery of the multiple first light-emitting windows having a first window length, the conjoined area of ​​the keycap boundaries of the multiple first keys being defined as a first halo area, and the multiple first light-emitting windows being located within the first halo area; Multiple first patterns are disposed in multiple first light-emitting windows. Each of the multiple first patterns corresponds to one of the multiple light-emitting units in the first column. The multiple first patterns are used to adjust the light path of the light emitted by the multiple light-emitting units in the first column. The multiple first patterns constitute the first column pattern. At least one second light-emitting window, corresponding to the second key, the at least one second light-emitting window having a second window length, the first window length being the same as the second window length, the keycap boundary of the second key being defined as a second halo area, the at least one second light-emitting window being located within the second halo area, the first halo area having the same area as the second halo area; and Multiple second patterns are disposed in the at least one second light-emitting window. Each of the multiple second patterns corresponds to one of the multiple light-emitting units in the second column. The multiple second patterns are used to adjust the light path of the light emitted by the multiple light-emitting units in the second column. The multiple second patterns constitute a second column pattern, which is different from the first column pattern. The light panel also includes a pair of non-intersecting wires, and the first column of patterns is at least partially located between the pair of non-intersecting wires.

16. A backlight module for illuminating multiple keycaps of a plurality of keys, the plurality of keys comprising a plurality of first keys arranged in the same column and second keys arranged adjacent to each other in another column, the plurality of keycaps comprising multiple columns of keycaps of different sizes, characterized in that, The backlight module includes: The light panel includes multiple light-emitting units, which are arranged in a first column and a second column, and the first column and the second column correspond to two adjacent columns of keycaps of different sizes in the multiple columns of keycaps. as well as A light-shielding panel, comprising: Multiple first light-emitting windows, each corresponding to a multiple first key, the overall periphery of the multiple first light-emitting windows having a first window length, the conjoined area of ​​the keycap boundaries of the multiple first keys being defined as a first halo area, and the multiple first light-emitting windows being located within the first halo area; Multiple first patterns are disposed in multiple first light-emitting windows. Each of the multiple first patterns corresponds to one of the multiple light-emitting units in the first column. The multiple first patterns are used to adjust the light path of the light emitted by the multiple light-emitting units in the first column. The multiple first patterns constitute the first column pattern. At least one second light-emitting window, corresponding to the second key, the at least one second light-emitting window having a second window length, the first window length being the same as the second window length, the keycap boundary of the second key being defined as a second halo area, the at least one second light-emitting window being located within the second halo area, the first halo area having the same area as the second halo area; and Multiple second patterns are disposed in the at least one second light-emitting window. Each of the multiple second patterns corresponds to one of the multiple light-emitting units in the second column. The multiple second patterns are used to adjust the light path of the light emitted by the multiple light-emitting units in the second column. The multiple second patterns constitute a second column pattern, which is different from the first column pattern. The light panel also includes a pair of spaced-apart microstructure regions, with at least one of the plurality of first patterns located between the pair of microstructure regions.

17. A light-emitting panel, characterized in that, The light-emitting panel is used to form a backlight module to illuminate multiple keycaps of multiple keys. The multiple keys include multiple first keys arranged in the same column and adjacent second keys arranged in another column. The multiple keycaps include multiple columns of keycaps of different sizes. The light-emitting panel includes: Multiple light-emitting units are arranged in a first column and a second column, and the first column and the second column correspond to two adjacent columns of keycaps in the multiple columns of keycaps of different sizes; The first pair of non-intersecting conductors and the second pair of non-intersecting conductors; and A light-shielding panel, comprising: Multiple first light-emitting windows, each corresponding to a multiple first key, the overall periphery of the multiple first light-emitting windows having a first window length, the conjoined area of ​​the keycap boundaries of the multiple first keys being defined as a first halo area, and the multiple first light-emitting windows being located within the first halo area; Multiple first patterns are disposed in multiple first light-emitting windows. Each of the multiple first patterns corresponds to one of the multiple light-emitting units in the first column. The multiple first patterns are used to adjust the light path of the light emitted by the multiple light-emitting units in the first column. The multiple first patterns constitute the first column pattern. At least one second light-emitting window, corresponding to the second key, the at least one second light-emitting window having a second window length, the first window length being the same as the second window length, the keycap boundary of the second key being defined as a second halo area, the at least one second light-emitting window being located within the second halo area, the first halo area having the same area as the second halo area; and Multiple second patterns are disposed in the at least one second light-emitting window. Each of the multiple second patterns corresponds to one of the multiple light-emitting units in the second column. The multiple second patterns are used to adjust the light path of the light emitted by the multiple light-emitting units in the second column. The multiple second patterns constitute the second column pattern. The first column of patterns is located between the first pair of non-intersecting conductors, the second column of patterns is located between the second pair of non-intersecting conductors, and the first column of patterns is different from the second column of patterns.

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