TWI614784B - Light guide plate and illuminated keyboard - Google Patents
Light guide plate and illuminated keyboard Download PDFInfo
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- TWI614784B TWI614784B TW105129425A TW105129425A TWI614784B TW I614784 B TWI614784 B TW I614784B TW 105129425 A TW105129425 A TW 105129425A TW 105129425 A TW105129425 A TW 105129425A TW I614784 B TWI614784 B TW I614784B
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Description
本發明是有關於一種鍵盤,特別是指一種發光鍵盤。 The invention relates to a keyboard, in particular to an illuminated keyboard.
參閱圖1,為本發明申請權人所研發且已提申為中華民國證書號第M525536號專利案的一種發光鍵盤的導光板9,該導光板9由複數列導光塊91所組成,各導光塊91具有複數將自身分隔出複數導光部911的光導阻絕空間912,及複數分別對應該等導光部911且分別供一光源(圖未示)設置的的光源設置空間913。該等導光部911是分別對應該發光鍵盤的複數字鍵(圖未示),且該等光導阻絕空間912用以有效將各光源所發出的光限制於各導光部911內傳導,藉此使得各導光部911的發光亮度是由單一光源控制,而不受其餘光源的影響,從而讓該等導光部911的發光亮度是均勻一致,趨近於各光源的發光亮度,進而使得該等字鍵的透光部的發光亮度均勻一致。 Referring to FIG. 1 , a light guide plate 9 of an illuminated keyboard is developed by the applicant of the present invention and has been proposed as the Republic of China Certificate No. M525536. The light guide plate 9 is composed of a plurality of light guide blocks 91, each of which is composed of a plurality of light guide blocks 91. The light guiding block 91 has a plurality of light guiding blocking spaces 912 that separate themselves from the plurality of light guiding portions 911, and a plurality of light source setting spaces 913 respectively corresponding to the light guiding portions 911 and provided with a light source (not shown). The light guiding portions 911 are respectively corresponding to the numeric keys (not shown) of the illuminated keyboard, and the light guiding blocking spaces 912 are used to effectively limit the light emitted by the light sources to the light guiding portions 911. Therefore, the light-emitting brightness of each light guiding portion 911 is controlled by a single light source, and is not affected by the remaining light sources, so that the light-emitting brightness of the light guiding portions 911 is uniform and close to the light-emitting brightness of each light source, thereby making The light-emitting luminance of the light-transmitting portions of the word keys is uniform.
但上述導光板9的該等光導阻絕空間912僅能防止各光源所發出的光線傳導至非所對應的導光部911,而各光源所發出的 光線還是會由所對應的導光塊91的周面側漏,使得各導光部911對於各字鍵發射的光亮度會有所減弱,從而降低各光源的光利用率。另外,該導光板9雖然可以透過一外框件(圖未示)連接該六列導光塊91,但該等導光塊91間還是具有間隙,以及各導光塊91具有該等光導阻絕空間912,使得該導光板9整體的結構強度有所不足,也就是各導光塊91容易受外力彎曲,造成該導光板9整體是翹曲不平,從而影響與該發光鍵盤其他元件的組裝密合度,因此上述導光板9的缺點有待改善。 However, the light guide blocking spaces 912 of the light guide plate 9 can only prevent the light emitted by the light sources from being transmitted to the non-corresponding light guiding portion 911, and the light sources are emitted by the light sources. The light is still leaked from the peripheral side of the corresponding light guiding block 91, so that the brightness of the light emitted by each light guiding portion 911 for each word key is weakened, thereby reducing the light utilization efficiency of each light source. In addition, although the light guide plate 9 can be connected to the six rows of light guide blocks 91 through an outer frame member (not shown), the light guide blocks 91 still have gaps therebetween, and each light guide block 91 has such light guide blocks. The space 912 is such that the overall structural strength of the light guide plate 9 is insufficient, that is, the light guide blocks 91 are easily bent by an external force, causing the light guide plate 9 to be warped as a whole, thereby affecting the assembly with other components of the illuminated keyboard. The degree of cooperation, therefore, the disadvantages of the above light guide plate 9 need to be improved.
因此,本發明之目的,即在提供一種至少克服先前技術所述缺點的發光鍵盤。 Accordingly, it is an object of the present invention to provide an illuminated keyboard that overcomes at least the disadvantages of the prior art.
於是,本發明發光鍵盤,包含一鍵盤模組,及一背光模組。 Thus, the illuminated keyboard of the present invention comprises a keyboard module and a backlight module.
該鍵盤模組包括一底板、複數分別可上下移動地設置於該底板的字鍵。該底板具有複數分別對應該等字鍵的通孔。該等字鍵分別位於該等通孔上方,且各字鍵具有至少一相對各通孔的透光部。 The keyboard module includes a bottom plate and a plurality of word keys respectively disposed on the bottom plate for moving up and down. The bottom plate has a plurality of through holes respectively corresponding to the word keys. The word keys are respectively located above the through holes, and each of the word keys has at least one light transmitting portion opposite to each of the through holes.
該背光模組設置於該底板的底側,且包括一導光板,及一發光單元。該導光板具有一遮光板體、一導光板體,及複數光 源設置空間。該遮光板體具有一外圍邊框、複數設置在該外圍邊框內的橫隔條、複數設置在該外圍邊框內的縱隔條,及複數由該外圍邊框、該等橫隔條與該等縱隔條相配合分隔出的導光區。該等導光區分別對應該等字鍵。該導光板體具有複數分別嵌設於該等導光區的導光塊。該等光源設置空間分別對應該等導光塊。該發光單元具有複數分別設置於該導光板的該等光源設置空間的光源。 The backlight module is disposed on a bottom side of the bottom plate and includes a light guide plate and a light emitting unit. The light guide plate has a light shielding plate body, a light guide plate body, and a plurality of light Source setting space. The visor body has a peripheral frame, a plurality of transverse strips disposed in the peripheral frame, a plurality of longitudinal spacers disposed in the peripheral frame, and a plurality of peripheral frames, the transverse spacers and the longitudinal spacers Match the separated light guide area. The light guiding areas respectively correspond to word keys. The light guide plate body has a plurality of light guiding blocks respectively embedded in the light guiding regions. The light source setting spaces respectively correspond to the light guiding blocks. The light emitting unit has a plurality of light sources respectively disposed in the light source setting spaces of the light guide plate.
本發明之功效在於:該導光板透過該遮光板體的外圍邊框將該導光板體的周面圍繞遮蔽,能解決現有發光鍵盤的光源所發出的光線由導光板的周面側漏問題,能提高光利用率及光均勻性,且該導光板透過該遮光板體包圍該導光板體的周面的嵌合結構設計,能有效增進該導光板整體的結構強度,使該背光模組整體板厚能有效降低,有利於本發明發光鍵盤元件間的組合配置。 The effect of the invention is that the light guide plate surrounds the peripheral surface of the light guide plate body through the peripheral frame of the light shielding plate body, thereby solving the problem that the light emitted by the light source of the existing light-emitting keyboard is leaked from the circumferential side of the light guide plate, and The light-emitting efficiency and the light uniformity are improved, and the light-shielding plate is designed to surround the peripheral surface of the light-guiding plate body through the light-shielding plate body, thereby effectively improving the structural strength of the light-guide plate as a whole, and the backlight module is integrally formed. The thickness can be effectively reduced, which is advantageous for the combined configuration of the illuminated keyboard elements of the present invention.
100‧‧‧鍵盤模組 100‧‧‧ keyboard module
1‧‧‧底板 1‧‧‧floor
11‧‧‧頂面 11‧‧‧ top surface
12‧‧‧底面 12‧‧‧ bottom
13‧‧‧通孔 13‧‧‧through hole
2‧‧‧字鍵 2‧‧‧ word key
21‧‧‧透光部 21‧‧‧Transmission Department
22‧‧‧剪刀腳支撐機構 22‧‧‧Scissor foot support mechanism
23‧‧‧彈性件 23‧‧‧Flexible parts
3‧‧‧透明電路膜 3‧‧‧Transparent circuit film
531‧‧‧橫隔條 531‧‧‧Chain strip
532‧‧‧縱隔條 532‧‧‧mediat strip
533‧‧‧導光空間 533‧‧‧Lighting space
5331‧‧‧導光區 5331‧‧‧Light Guide Area
534‧‧‧左框條 534‧‧‧Left frame
535‧‧‧右框條 535‧‧‧Right frame
536‧‧‧上框條 536‧‧‧Top frame
537‧‧‧下框條 537‧‧‧ Lower frame
538‧‧‧連接端 538‧‧‧Connected end
539‧‧‧自由端 539‧‧‧Free end
200‧‧‧背光模組 200‧‧‧Backlight module
4‧‧‧遮光片 4‧‧ ‧ shading film
41‧‧‧頂面 41‧‧‧ top surface
42‧‧‧底面 42‧‧‧ bottom
43‧‧‧透光區 43‧‧‧Transparent area
5‧‧‧導光板 5‧‧‧Light guide plate
51‧‧‧頂面 51‧‧‧ top surface
52‧‧‧底面 52‧‧‧ bottom
53‧‧‧遮光板體 53‧‧‧ visor body
530‧‧‧外圍邊框 530‧‧‧ peripheral border
54‧‧‧導光板體 54‧‧‧Light guide plate body
541‧‧‧導光塊 541‧‧‧Light guide block
542‧‧‧連接部 542‧‧‧Connecting Department
55‧‧‧光源設置空間 55‧‧‧Light source setting space
6‧‧‧反光件 6‧‧‧Reflecting parts
61‧‧‧光源穿孔 61‧‧‧Light source perforation
7‧‧‧發光單元 7‧‧‧Lighting unit
71‧‧‧電路板 71‧‧‧Circuit board
72‧‧‧光源 72‧‧‧Light source
本發明之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中:圖1是現有發光鍵盤的一導光板的一俯視圖,說明該導光板的結構態樣;圖2是本發明發光鍵盤的一實施例的一俯視圖; 圖3是一不完整的部分分解的俯視圖,說明該實施例的元件組合關係;圖4是一不完整的俯視圖,說明該實施例的元件組合關係;圖5是一不完整的剖視圖,說明該實施例的元件組合關係;圖6是一俯視圖,說明該實施例的一導光板的結構態樣;及圖7是一不完整的剖面圖,說明該實施例的該導光板的一遮光板體與一導光板體兩者間的嵌接面的結構態樣。 Other features and effects of the present invention will be apparent from the following description of the drawings. FIG. 1 is a top view of a light guide plate of a conventional illuminated keyboard, illustrating the structural aspect of the light guide plate; A top view of an embodiment of the illuminated keyboard of the present invention; 3 is a partially exploded top plan view showing the component combination relationship of the embodiment; FIG. 4 is an incomplete top view illustrating the component combination relationship of the embodiment; FIG. 5 is an incomplete cross-sectional view illustrating the FIG. 6 is a plan view showing a structural view of a light guide plate of the embodiment; and FIG. 7 is an incomplete cross-sectional view showing a light shielding plate body of the light guide plate of the embodiment. The structural aspect of the engagement surface with both of the light guide plates.
參閱圖2、圖3及圖4,本發明發光鍵盤之一實施例,包含一鍵盤模組100,及一背光模組200。 Referring to FIG. 2, FIG. 3 and FIG. 4, an embodiment of the illuminated keyboard of the present invention comprises a keyboard module 100 and a backlight module 200.
參閱圖3、圖4及圖5,該鍵盤模組100包括一底板1、複數字鍵2,及一透明電路膜3。該底板1包括一頂面11、一相反於該頂面11的底面12,及複數相間隔且貫穿該頂面11及該底面12的通孔13。 Referring to FIG. 3, FIG. 4 and FIG. 5, the keyboard module 100 includes a bottom plate 1, a plurality of numeric keys 2, and a transparent circuit film 3. The bottom plate 1 includes a top surface 11 , a bottom surface 12 opposite to the top surface 11 , and a plurality of through holes 13 spaced apart from the top surface 11 and the bottom surface 12 .
該等字鍵2設置於該底板1的該頂面11且分別對應該等通孔13。各字鍵2具有至少一相對各通孔13的透光部21。各字鍵2的該透光部21即為各字鍵2所欲顯示的字母符號。該透明電路膜3設置於該底板1的該頂面11且位於該等字鍵2下方。在本實施例中,各字鍵2是透過一剪刀腳支撐機構22及一彈性件23而可上下移 動地設置於該底板1,並透過該彈性件23觸抵該透明電路膜3產生觸發信號。然而,上述該鍵盤模組100的元件組成及元件結構態樣為習知技術,在此不再贅述,且不以本發明公開揭露的為限。 The word keys 2 are disposed on the top surface 11 of the bottom plate 1 and correspond to the through holes 13 respectively. Each of the word keys 2 has at least one light transmitting portion 21 opposed to each of the through holes 13. The light transmitting portion 21 of each of the word keys 2 is an alphabetic symbol to be displayed for each word key 2. The transparent circuit film 3 is disposed on the top surface 11 of the bottom plate 1 and below the word keys 2. In this embodiment, each of the word keys 2 is movable up and down through a scissor foot supporting mechanism 22 and an elastic member 23. The ground plate 1 is movably disposed, and a trigger signal is generated by the elastic member 23 contacting the transparent circuit film 3. However, the component composition and the component structure of the keyboard module 100 are not described herein, and are not limited to the disclosure of the present invention.
該背光模組200設置於該底板1的該底面12且涵蓋該等通孔13並位於該等字鍵2的下方,用來對於該等字鍵2投射光線。該背光模組200包括一遮光片4、一導光板5、一反光件6,及一發光單元7。 The backlight module 200 is disposed on the bottom surface 12 of the bottom plate 1 and covers the through holes 13 and is located below the word keys 2 for projecting light for the word keys 2 . The backlight module 200 includes a light shielding sheet 4 , a light guide plate 5 , a light reflecting member 6 , and a light emitting unit 7 .
該遮光片4設置於該底板1的該底面12,且包括一相對該底板1的該底面12的頂面41、一相反於該頂面41的底面42、複數分別對應該等通孔13的透光區43。 The visor 4 is disposed on the bottom surface 12 of the bottom plate 1 and includes a top surface 41 opposite to the bottom surface 12 of the bottom plate 1, a bottom surface 42 opposite to the top surface 41, and a plurality of corresponding through holes 13 respectively. Light transmissive area 43.
參閱圖4、圖5及圖6,該導光板5設置於該遮光片4的該底面42且具有一相對該遮光板4的該底面42的頂面51、一相反於該頂面51的底面52、一遮光板體53、一導光板體54、及複數光源設置空間55。 Referring to FIG. 4 , FIG. 5 and FIG. 6 , the light guide plate 5 is disposed on the bottom surface 42 of the light shielding sheet 4 and has a top surface 51 opposite to the bottom surface 42 of the light shielding plate 4 and a bottom surface opposite to the top surface 51 . 52. A light shielding plate body 53, a light guide plate body 54, and a plurality of light source setting spaces 55.
該遮光板體53為不透光材質所製成,例如黑色的丙烯腈-丁二烯-苯乙烯共聚物(ABS),且包括一外圍邊框530、複數設置在該外圍邊框530內的橫隔條531、複數設置在該外圍邊框530內的縱隔條532,及複數列由該外圍邊框530與該等橫隔條531相配合分隔出的導光空間533。 The visor body 53 is made of an opaque material, such as a black acrylonitrile-butadiene-styrene copolymer (ABS), and includes a peripheral frame 530 and a plurality of spacers disposed in the peripheral frame 530. A strip 531, a plurality of longitudinal strips 532 disposed in the peripheral frame 530, and a plurality of light guiding spaces 533 separated by the peripheral frame 530 and the transverse strips 531.
該外圍邊框530具有左右間隔設置的一左框條534與一右框條535,及上下間隔設置的一上框條536與一下框條537,該上框條536兩端分別連接於該左框條534及該右框條535,該下框條537兩端分別連接於該左框條534及該右框條535。各橫隔條531兩端分別連接於該外圍邊框530。該等縱隔條532分別自該上框條536、該下框條537及該等橫隔條531的其中一者延伸進該等導光空間533。每一縱隔條532具有一連接於該上框條536、該下框條537及該等橫隔條531其中一者的連接端538,及一相反於該連接端538的自由端539。 The peripheral frame 530 has a left frame strip 534 and a right frame strip 535 disposed at right and left intervals, and an upper frame strip 536 and a lower frame strip 537 which are spaced apart from each other. The two ends of the upper frame strip 536 are respectively connected to the left frame. The strip 534 and the right frame strip 535 are respectively connected to the left frame strip 534 and the right frame strip 535. Both ends of each of the horizontal strips 531 are respectively connected to the peripheral frame 530. The longitudinal strips 532 extend into the light guiding spaces 533 from one of the upper frame strip 536, the lower frame strip 537, and the transverse strips 531, respectively. Each of the longitudinal strips 532 has a connecting end 538 connected to one of the upper frame strip 536, the lower frame strip 537 and the transverse strips 531, and a free end 539 opposite to the connecting end 538.
各列導光空間533內具有該等縱隔條532其中數者,且被該等縱隔條532分隔出複數導光區5331。該等導光區5331分別對應該等字鍵2。 Each of the columns of light guiding spaces 533 has a plurality of the longitudinal spacers 532 therein, and the plurality of light guiding regions 5331 are separated by the longitudinal spacers 532. The light guiding areas 5331 correspond to the word keys 2, respectively.
在本實施例中,該等橫隔條531鄰近該下框條537一者的兩端分別連接於該右框條535及該下框條537,該等橫隔條531其餘數者各別的兩端則分別連接於該左框條534及該右框條535,但不以此為限,該等橫隔條531與該外圍邊框530的連接關係可以依該等字鍵2的配置而有所變化,如該等橫隔條531各別的兩端皆分別連接於該左框條534及該右框條535。 In this embodiment, the two ends of the horizontal strip 531 adjacent to the lower frame strip 537 are respectively connected to the right frame strip 535 and the lower frame strip 537, and the other ones of the cross strips 531 are different. The two ends are respectively connected to the left frame 534 and the right frame 535. However, the connection relationship between the spacers 531 and the peripheral frame 530 may be configured according to the configuration of the word keys 2 The two ends of the spacer strips 531 are respectively connected to the left frame strip 534 and the right frame strip 535.
該導光板體54為透光材質所製成,例如透光的聚碳酸酯(PC),且包括複數分別嵌設於該等導光區5331的導光塊541,及 複數分別連接於兩相鄰的導光塊541間的連接部542。各連接部542嵌設於所對應的縱隔條532的自由端539。該導光板體54的厚度不高於該遮光板體53的厚度。該導光板體54與該該遮光板體53兩者可以經由雙色射出成型(bi-injection molding)、植入射出成型(embedded injection molding)等製程製造而成。在本實施例中,該導光板體54與該遮光板體53兩者的厚度相同,且兩者的頂面齊平及底面齊平,但不以此為限,當該導光板體54的厚度小於該遮光板體53的厚度時,該導光板體54的頂、底面其中至少一者是凹陷位於所對應的導光區5331內。 The light guide plate body 54 is made of a light transmissive material, such as a light transmissive polycarbonate (PC), and includes a plurality of light guiding blocks 541 respectively embedded in the light guiding regions 5331, and The plurality of connecting portions 542 are respectively connected between the two adjacent light guiding blocks 541. Each connecting portion 542 is embedded in the free end 539 of the corresponding longitudinal strip 532. The thickness of the light guide plate body 54 is not higher than the thickness of the light shielding plate body 53. Both the light guide plate body 54 and the light shielding plate body 53 can be manufactured by a process such as bi-injection molding or embedded injection molding. In this embodiment, the thickness of the light guide plate body 54 and the light shielding plate body 53 are the same, and the top surfaces of the two are flush and the bottom surface is flush, but not limited thereto, when the light guide plate body 54 is When the thickness is smaller than the thickness of the visor body 53, at least one of the top and bottom surfaces of the light guide plate body 54 is recessed in the corresponding light guiding region 5331.
該等光源設置空間55分別對應該等導光塊541。在本實施例中,該等光源設置空間55形成於該等橫隔條531,且分別相對該等導光塊541,並鄰近該等縱隔條532的自由端539,但不以此為限,該等光源設置空間55也可分別形成於該等導光塊541。 The light source setting spaces 55 correspond to the light guiding blocks 541, respectively. In this embodiment, the light source setting spaces 55 are formed on the horizontal spacers 531 and are adjacent to the light guiding blocks 541 and adjacent to the free ends 539 of the longitudinal spacers 532, but not limited thereto. The light source setting spaces 55 may also be formed in the light guiding blocks 541, respectively.
值得一提的是,該遮光板體53的該等縱隔條532的自由端539也可分別連接該上框條536、該下框條537及該等橫隔條531其中一者,而該導光板體54僅具有分別嵌設於該等導光區5331的該等導光塊541,而該等光源設置空間55的設置位置則不以上述為限,也可設置於該外圍邊框530的任一部位,能分別對應該等導光塊541即可。 It is to be noted that the free ends 539 of the longitudinal spacers 532 of the visor body 53 can also be respectively connected to the upper frame strip 536, the lower frame strip 537 and one of the transverse strips 531, and the guide The light guide body 54 has only the light guide blocks 541 respectively embedded in the light guide regions 5331. The position of the light source installation spaces 55 is not limited to the above, and may be disposed on the peripheral frame 530. For a part, it is sufficient to correspond to the light guiding block 541.
另外一提的是,為了提高該遮光板體53與該導光板體54兩者間的嵌固力而不互相脫離,該遮光板體53與該導光板體54兩者的嵌接面為具有凹凸結構等的非平滑面,或是兩者的嵌接面為斜面,而非平行厚度方向延伸的垂直面,亦或是非平滑的斜面(見圖7)。 In addition, in order to improve the adhesion between the light shielding plate body 53 and the light guide plate body 54 without being separated from each other, the engagement surface of the light shielding plate body 53 and the light guide plate body 54 has A non-smooth surface such as a concave-convex structure, or a mating surface of the two is a bevel, rather than a vertical surface extending in parallel with the thickness direction, or a non-smooth bevel (see Fig. 7).
該反光件6覆蓋設置於該導光板5的該底面52,且具有複數分別對應該等光源設置空間55的光源穿孔61。在本實施例中,該反光件6為一反光片,但不以此為限,也可為一附著於該導光板5的該底面52的反光膜層。 The reflector 6 covers the bottom surface 52 of the light guide plate 5 and has a plurality of light source through holes 61 respectively corresponding to the light source installation spaces 55. In this embodiment, the reflector 6 is a retroreflective sheeting, but not limited thereto, and may be a reflective film layer attached to the bottom surface 52 of the light guiding plate 5.
該發光單元7包括一設置於該反光件6底側的電路板71,及複數設置於該電路板71的光源72。該等光源72分別穿設於該反光件6的該等光源穿孔61而分別設置於該導光板32的該等光源設置空間55。各光源72所發出的光被該遮光板體53限制於各導光塊541內傳導。在本實施例中,各光源72為一側向發光的發光二極體(LED),且具有一小於180度的發光角度。 The light-emitting unit 7 includes a circuit board 71 disposed on the bottom side of the reflector 6 and a plurality of light sources 72 disposed on the circuit board 71. The light sources 72 are respectively disposed in the light source through holes 61 of the light reflecting member 6 and are respectively disposed in the light source setting spaces 55 of the light guide plate 32. The light emitted by each of the light sources 72 is confined in the respective light guiding blocks 541 by the light shielding plate body 53. In this embodiment, each of the light sources 72 is a light-emitting diode (LED) that emits light sideways and has an illumination angle of less than 180 degrees.
其中,在已確定各光源72的發光角度下,上述該遮光板體53的縱隔條532的延伸態樣及與各光源42的相對設置位置是經過計算所得到,從而在該遮光板體53非為封閉圍繞各導光塊541的情況下,也能用以將各光源42所發出的光限制於各導光塊541內傳導,而不會經由兩相鄰導光塊541間的連接部542向外導出。 Wherein, after the illumination angle of each light source 72 has been determined, the extension of the longitudinal spacer 532 of the light shielding plate body 53 and the relative installation position with each light source 42 are obtained by calculation, so that the light shielding plate body 53 is not In order to enclose the respective light guiding blocks 541, the light emitted by each light source 42 can be restricted from being conducted in the respective light guiding blocks 541 without passing through the connecting portion 542 between the two adjacent light guiding blocks 541. Export outward.
經由上述說明可知,本發明發光鍵盤透過該導光板5的該遮光板體53與該導光板體54的結構設計,也就是該遮光板體53是包圍該導光板體54的各導光塊541的周面,用以將該各光源72所發出的光侷限於各導光塊541內傳導,且僅能由各導光塊541的頂、底面向外射出,再配合一導光塊541對應一光源72的光源設置設計,使得各導光塊541的發光亮度是由單一光源72控制,而不受其餘光源72的影響,從而讓該等導光塊541的發光亮度是均勻一致,趨近於各光源72的發光亮度,進而使得該等字鍵2的透光部21的發光亮度均勻一致,從而讓本發明發光鍵盤在暗處使用時,使用者能更輕易辨識各字鍵2上的字母符號。 As can be seen from the above description, the light-emitting keyboard of the present invention is designed to pass through the light-shielding plate 53 of the light guide plate 5 and the light guide plate body 54, that is, the light-shielding plate body 53 is a light guide block 541 surrounding the light guide plate body 54. The circumferential surface of the light source 72 is limited to be guided by the light guiding blocks 541, and can be emitted only from the top and bottom surfaces of the light guiding blocks 541, and is matched with a light guiding block 541. The light source of a light source 72 is designed such that the light-emitting brightness of each light-guiding block 541 is controlled by a single light source 72 without being affected by the remaining light sources 72, so that the light-emitting brightness of the light-guiding blocks 541 is uniform and close. The brightness of the light emitted by each of the light sources 72, so that the light-emitting brightness of the light-transmitting portions 21 of the word keys 2 is uniform, so that the user can more easily recognize the word keys 2 when the light-emitting keyboard of the present invention is used in a dark place. Letter symbol.
再者,該導光板5透過該遮光板體53的外圍邊框530將該導光板體54的周面圍繞遮蔽,能解決現有發光鍵盤的光源所發出的光線由導光板的周面側漏問題,以提高各光源72的光利用率,且該導光板5透過該遮光板體53與該導光板體54為沿厚度方向的嵌合結構設計,能有效增進該導光板5整體的結構強度,有利於本發明發光鍵盤元件間的組合配置。 Moreover, the light guide plate 5 is shielded by the peripheral surface of the light guide plate body 53 through the peripheral frame 530 of the light shielding plate body 53 to solve the problem that the light emitted by the light source of the conventional light-emitting keyboard is leaked from the circumferential side of the light guide plate. In order to improve the light utilization efficiency of each of the light sources 72, the light guide plate 5 and the light guide plate body 54 are designed to have a fitting structure in the thickness direction, thereby effectively improving the structural strength of the entire light guide plate 5, which is advantageous. A combined configuration between the illuminated keyboard elements of the present invention.
另外,在該導光板5能將各光源72所發出的光線限制僅能由各導光塊541的頂、底面向外射出的情況下,本發明發光鍵盤則可省略設置於該鍵盤模組100與該導光板5間的該遮光片4,且也可省略設置於該導光板5與該發光單元7的該電路板71間的反光件 6,而讓不透光的該電路板71緊貼於該導光板5的該底面52,且該電路板71的周緣是延伸至該遮光板體53的該外圍邊框530而貼合於該外圍邊框530,使得該電路板71也能達到大致相同於該反光件6的反光功效。也就是說,該導光板5使得該背光模組200整體板厚能有效降低。 In addition, in the case where the light guide plate 5 can limit the light emitted by the light sources 72 to be emitted from the top and bottom surfaces of the light guide blocks 541, the illuminated keyboard of the present invention can be omitted from the keyboard module 100. The light shielding sheet 4 between the light guide plate 5 and the light reflecting plate disposed between the light guide plate 5 and the circuit board 71 of the light emitting unit 7 6. The circuit board 71 that is opaque is adhered to the bottom surface 52 of the light guide plate 5, and the peripheral edge of the circuit board 71 extends to the peripheral frame 530 of the light shielding plate body 53 to be attached to the periphery. The frame 530 is such that the circuit board 71 can also achieve the same reflective effect as the reflector 6. That is to say, the light guide plate 5 can effectively reduce the overall thickness of the backlight module 200.
綜上所述,本發明發光鍵盤確實能達成本發明之目的。 In summary, the illuminated keyboard of the present invention does achieve the object of the present invention.
惟以上所述者,僅為本發明之實施例而已,當不能以此限定本發明實施之範圍,凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。 However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.
100‧‧‧鍵盤模組 100‧‧‧ keyboard module
1‧‧‧底板 1‧‧‧floor
11‧‧‧頂面 11‧‧‧ top surface
13‧‧‧通孔 13‧‧‧through hole
2‧‧‧字鍵 2‧‧‧ word key
200‧‧‧背光模組 200‧‧‧Backlight module
4‧‧‧遮光片 4‧‧ ‧ shading film
41‧‧‧頂面 41‧‧‧ top surface
51‧‧‧頂面 51‧‧‧ top surface
53‧‧‧遮光板體 53‧‧‧ visor body
54‧‧‧導光板體 54‧‧‧Light guide plate body
55‧‧‧光源設置空間 55‧‧‧Light source setting space
6‧‧‧反光件 6‧‧‧Reflecting parts
61‧‧‧光源穿孔 61‧‧‧Light source perforation
7‧‧‧發光單元 7‧‧‧Lighting unit
71‧‧‧電路板 71‧‧‧Circuit board
43‧‧‧透光區 43‧‧‧Transparent area
5‧‧‧導光板 5‧‧‧Light guide plate
72‧‧‧光源 72‧‧‧Light source
Claims (8)
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TW201810329A TW201810329A (en) | 2018-03-16 |
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US11599203B2 (en) | 2021-07-23 | 2023-03-07 | Chicony Power Technology Co., Ltd. | Backlight module |
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TWI665704B (en) * | 2018-07-24 | 2019-07-11 | 達方電子股份有限公司 | Backlight apparatus used in illuminated keyboard |
TWI768558B (en) | 2020-11-25 | 2022-06-21 | 達方電子股份有限公司 | Backlight keyboard |
TWI770864B (en) | 2021-03-09 | 2022-07-11 | 群光電能科技股份有限公司 | Touch module |
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CN201780913U (en) * | 2010-03-31 | 2011-03-30 | 苏州达方电子有限公司 | Luminous keyboard |
CN103413714A (en) * | 2013-07-30 | 2013-11-27 | 苏州达方电子有限公司 | Cursor control button and luminous keyboard thereof |
CN105487168A (en) * | 2016-02-04 | 2016-04-13 | 上海向隆电子科技有限公司 | Light guide plate with regional light outlet and manufacturing method thereof |
TWM525536U (en) * | 2016-03-31 | 2016-07-11 | Sunrex Technology Corp | Backlight module and light keyboard |
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CN201780913U (en) * | 2010-03-31 | 2011-03-30 | 苏州达方电子有限公司 | Luminous keyboard |
CN103413714A (en) * | 2013-07-30 | 2013-11-27 | 苏州达方电子有限公司 | Cursor control button and luminous keyboard thereof |
CN105487168A (en) * | 2016-02-04 | 2016-04-13 | 上海向隆电子科技有限公司 | Light guide plate with regional light outlet and manufacturing method thereof |
TWM525536U (en) * | 2016-03-31 | 2016-07-11 | Sunrex Technology Corp | Backlight module and light keyboard |
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US11599203B2 (en) | 2021-07-23 | 2023-03-07 | Chicony Power Technology Co., Ltd. | Backlight module |
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