TWI814658B - Light board structure - Google Patents

Light board structure Download PDF

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Publication number
TWI814658B
TWI814658B TW111146830A TW111146830A TWI814658B TW I814658 B TWI814658 B TW I814658B TW 111146830 A TW111146830 A TW 111146830A TW 111146830 A TW111146830 A TW 111146830A TW I814658 B TWI814658 B TW I814658B
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printing pattern
led elements
printing
colloid
led
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TW111146830A
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Chinese (zh)
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TW202424386A (en
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蘇柏元
周暉凱
吳家豪
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友達光電股份有限公司
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Abstract

A light board structure includes a substrate, a plurality of LED elements, colloid and a diffusion plate. A plurality of LED elements are arranged on the substrate. The colloid is arranged on the substrate and covers the LED elements, and the colloid includes the first printing pattern. The diffusion plate is arranged on the colloid, and the diffusion plate includes a second printing pattern. One of the first printed pattern and the second printed pattern is arranged corresponding to the LED elements, and completely covers the corresponding LED elements in the first direction.

Description

燈板結構Light panel structure

一種燈板結構，特別是具有複數層印刷圖案的燈板結構。 A lamp panel structure, especially a lamp panel structure with multiple layers of printed patterns.

常見的燈板係透過搭配擴散板印刷圖案或搭配覆晶膠印刷圖案，以解決燈板的Mura現象。然而，現有的顯示器為了降低價格競爭，係透過減少LED元件數量來降低成本。 Commonly used light panels are printed with diffuser plates or printed with flip-chip adhesives to solve the Mura phenomenon of the light panels. However, in order to reduce price competition, existing displays reduce costs by reducing the number of LED components.

如此，設有較少數量LED元件之燈板的情況下，單純藉由擴散板或覆晶膠之印刷圖案無法有效解決Mura現象。 In this way, in the case of a light panel equipped with a small number of LED components, the Mura phenomenon cannot be effectively solved simply by printing patterns on the diffusion plate or flip-chip adhesive.

有鑑於此，依據一實施例提供一種燈板結構，包括基板、複數個LED元件、膠體及擴散板。複數個LED元件設於基板。膠體設於基板並包覆該些LED元件，膠體包括第一印刷圖案。擴散板設於膠體上，擴散板包括第二印刷圖案。第一印刷圖案及第二印刷圖案其中之一對應該些LED元件設置，且於第一方向上完全覆蓋對應之LED元件。 In view of this, according to an embodiment, a lamp panel structure is provided, including a substrate, a plurality of LED elements, a colloid, and a diffusion plate. A plurality of LED components are provided on the substrate. The colloid is disposed on the substrate and covers the LED elements, and the colloid includes a first printed pattern. The diffusion plate is disposed on the colloid and includes a second printed pattern. One of the first printing pattern and the second printing pattern is arranged corresponding to the LED components and completely covers the corresponding LED components in the first direction.

在一些實施例中，第一印刷圖案及第二印刷圖案皆對應該些LED元件設置，且於第一方向上彼此相互重疊並完全覆蓋該些LED元件。 In some embodiments, the first printing pattern and the second printing pattern are both disposed corresponding to the LED elements, overlap each other in the first direction and completely cover the LED elements.

在一些實施例中，第一印刷圖案的中心對應於對應之LED元件的中心設置，第二印刷圖案的中心對應於對應之第一印刷圖案的中心及對應之LED元件的中心設置。 In some embodiments, the center of the first printing pattern is arranged corresponding to the center of the corresponding LED element, and the center of the second printing pattern is arranged corresponding to the center of the corresponding first printing pattern and the center of the corresponding LED element.

在一些實施例中，第一印刷圖案及第二印刷圖案其中之一的中心對應於對應之LED元件的中心設置。 In some embodiments, the center of one of the first printing pattern and the second printing pattern is disposed corresponding to the center of the corresponding LED element.

在一些實施例中，第一印刷圖案及第二印刷圖案其中之另一設置於偏離該些LED元件的中心之位置，並局部地覆蓋LED元件。 In some embodiments, the other one of the first printing pattern and the second printing pattern is disposed at a position offset from the center of the LED elements and partially covers the LED elements.

在一些實施例中，第一印刷圖案及第二印刷圖案其中之另一設置於偏離該些LED元件的中心之位置，且於第一方向上完全未覆蓋LED元件。 In some embodiments, the other one of the first printing pattern and the second printing pattern is disposed at a position offset from the center of the LED elements and does not cover the LED elements at all in the first direction.

在一些實施例中，各LED元件的中心之間的距離係為3至5mm。 In some embodiments, the distance between the centers of each LED element is 3 to 5 mm.

在一些實施例中，第一印刷圖案及第二印刷圖案例如為圓形或多邊形等。 In some embodiments, the first printing pattern and the second printing pattern are, for example, circles or polygons.

在一些實施例中，第一印刷圖案係以油墨印刷於膠體上，第二印刷圖案係以油墨印刷於擴散板上。 In some embodiments, the first printing pattern is printed on the colloid using ink, and the second printing pattern is printed on the diffusion plate using ink.

綜上所述，根據一實施例提供一種燈板結構，透過膠體的第一印刷圖案及擴散板的第二印刷圖案，以各種排列方式之二層印刷圖案解決顯示器之各種類型的Mura現象。 To sum up, according to an embodiment, a lamp panel structure is provided, which solves various types of Mura phenomena in the display through the first printing pattern of the colloid and the second printing pattern of the diffusion plate, using two-layer printing patterns in various arrangements.

100:燈板結構 100:Light panel structure

110:基板 110:Substrate

130,130A,130B,130C:LED元件 130,130A,130B,130C: LED components

150:膠體 150: Colloid

151,151A,151B,151C:第一印刷圖案 151,151A,151B,151C: first printing pattern

170:擴散板 170: Diffusion plate

171,171A,171B,171C,171D:第二印刷圖案 171,171A,171B,171C,171D: Second printing pattern

230A,230B,230C:LED元件 230A, 230B, 230C: LED components

250:膠體 250: Colloid

251,251A,251B,251C,251D:第一印刷圖案 251,251A,251B,251C,251D: first printing pattern

270:擴散板 270: Diffusion plate

271A,271B,271C:第二印刷圖案 271A, 271B, 271C: Second printing pattern

330A,330B,330C:LED元件 330A, 330B, 330C: LED components

350:膠體 350: Colloid

351A,351B,351C:第一印刷圖案 351A, 351B, 351C: first printing pattern

370:擴散板 370: Diffusion plate

371,371A,371B,371C,371D:第二印刷圖案 371,371A,371B,371C,371D: Second printing pattern

430A,430B,430C:LED元件 430A, 430B, 430C: LED components

450:膠體 450: Colloid

451A,451B,451C:第一印刷圖案 451A, 451B, 451C: first printing pattern

470:擴散板 470: Diffusion plate

471A,471B,471C:第二印刷圖案 471A, 471B, 471C: Second printing pattern

d:距離 d: distance

圖1為根據一第一實施例燈板結構的示意圖。 FIG. 1 is a schematic diagram of the structure of a light panel according to a first embodiment.

圖2為根據一第二實施例燈板結構的示意圖。 FIG. 2 is a schematic diagram of a light panel structure according to a second embodiment.

圖3為根據一第三實施例燈板結構的示意圖。 FIG. 3 is a schematic diagram of a light panel structure according to a third embodiment.

圖4為根據一第四實施例燈板結構的示意圖。 FIG. 4 is a schematic diagram of a lamp panel structure according to a fourth embodiment.

請參閱圖1。圖1為根據一第一實施例燈板結構的示意圖。燈板結構100包括基板110、複數個LED元件130、膠體150及擴散板170。燈板結構100係例如應用於手機、電視、電腦、筆記型電腦、平板電腦等顯示器。 See Figure 1. FIG. 1 is a schematic diagram of the structure of a light panel according to a first embodiment. The lamp panel structure 100 includes a substrate 110, a plurality of LED elements 130, a colloid 150 and a diffusion plate 170. The light panel structure 100 is used, for example, in displays such as mobile phones, televisions, computers, laptops, and tablet computers.

複數個LED元件130設於基板110。在第一實施例中，如圖1所示，複數個LED元件130例如為三個LED元件130A、130B、130C。為了清楚說明，圖1僅示出沿著第一方向(即，X軸之方向)排列的複數個LED元件130A、130B、130C，但不限於此，複數個LED元件130A、130B、130C亦可以為呈多行多列。 A plurality of LED elements 130 are provided on the substrate 110 . In the first embodiment, as shown in FIG. 1 , the plurality of LED elements 130 are, for example, three LED elements 130A, 130B, and 130C. For clear explanation, FIG. 1 only shows a plurality of LED elements 130A, 130B, and 130C arranged along the first direction (ie, the direction of the In order to have multiple rows and columns.

膠體150設於基板110並包覆該些LED元件130A、130B、130C，膠體150包括第一印刷圖案151。在第一實施例中，膠體150例如為樹脂膠。在第一實施例中，第一印刷圖案151係為複數個且對應LED元件130A、130B、130C之數量，如圖1所示，第一印刷圖案151對應LED元件130A、130B、130C為三個第一印刷圖案151A、151B、151C，但不限於此。 The colloid 150 is disposed on the substrate 110 and covers the LED elements 130A, 130B, and 130C. The colloid 150 includes a first printed pattern 151 . In the first embodiment, the colloid 150 is, for example, resin glue. In the first embodiment, there are a plurality of first printing patterns 151 corresponding to the number of LED elements 130A, 130B, and 130C. As shown in FIG. 1 , there are three first printing patterns 151 corresponding to the number of LED elements 130A, 130B, and 130C. The first printing patterns 151A, 151B, and 151C are not limited to these.

擴散板170設於膠體150上，擴散板170包括第二印刷圖案171。在第一實施例中，第二印刷圖案171為四個第二印刷圖案171A、171B、171C、171D，但不限於此。 The diffusion plate 170 is disposed on the colloid 150 , and the diffusion plate 170 includes a second printed pattern 171 . In the first embodiment, the second printing pattern 171 is four second printing patterns 171A, 171B, 171C, and 171D, but is not limited thereto.

第一印刷圖案151A、151B、151C及第二印刷圖案171A、171B、171C、171D其中之一對應該些LED元件130A、130B、130C設置，且於第一方向上完全覆蓋對應之LED元件130A、130B、130C。如圖1所示，各第一印刷圖案151A、151B、151C分別對應一LED元件130A、130B、130C設置，且完全覆蓋對應之一LED元件130A、130B、130C。此外，各第二印刷圖案171A、171B、171C、171D以與各第一印刷圖案151A、151B、151C交錯地設置。 One of the first printing patterns 151A, 151B, 151C and the second printing patterns 171A, 171B, 171C, 171D is arranged corresponding to the LED elements 130A, 130B, 130C, and completely covers the corresponding LED elements 130A, 130A, 130C in the first direction. 130B, 130C. As shown in FIG. 1 , each first printing pattern 151A, 151B, and 151C is arranged corresponding to an LED element 130A, 130B, and 130C respectively, and completely covers the corresponding one of the LED elements 130A, 130B, and 130C. In addition, the second printing patterns 171A, 171B, 171C, and 171D are arranged in a staggered manner with the first printing patterns 151A, 151B, and 151C.

如此，燈板結構100的LED元件130A、130B、130C所射出之光，部分之光僅經過第一印刷圖案151A、151B、151C，而另一部分的光先經過膠體150的第一印刷圖案151A、151B、151C，接著再經過擴散板170的第二印刷圖案171A、171B、171C、171D而完成光線之均勻化，以解決顯示器所產生的Mura現象。 In this way, part of the light emitted by the LED elements 130A, 130B, and 130C of the lamp panel structure 100 only passes through the first printing patterns 151A, 151B, and 151C, while the other part of the light first passes through the first printing patterns 151A, 151A, and 151C of the colloid 150. 151B, 151C, and then pass through the second printed patterns 171A, 171B, 171C, and 171D of the diffusion plate 170 to complete the uniformization of the light to solve the Mura phenomenon produced by the display.

如圖1所示，在第一實施例中，各第一印刷圖案151A、151B、151C的中心對應於一對應之LED元件130A、130B、130C的中心設置，以平均地覆蓋一對應之LED元件130A、130B、130C。此外，第二印刷圖案171A、171B、171C、171D設置於偏離LED元件130A、130B、130C的中心之位置，並局部地覆蓋LED元件130A、130B、130C。及第一印刷圖案151A、151B、151C，如圖1所示，以LED元件130B所射出之光路徑為例，LED元件130B所射出之光經由膠體150擴散後，部分之光僅經過第一印刷圖案151B後由擴散板170擴散出，而另一部分之光經過第一印刷圖案151B，接著經由擴散板170再次擴散，而所擴散之光將再分別經過第二印刷圖案171B、171C，以完成光線之均勻化。 As shown in FIG. 1 , in the first embodiment, the center of each first printing pattern 151A, 151B, 151C is arranged corresponding to the center of a corresponding LED element 130A, 130B, 130C, so as to evenly cover a corresponding LED element. 130A, 130B, 130C. In addition, the second printing patterns 171A, 171B, 171C, and 171D are disposed at positions offset from the centers of the LED elements 130A, 130B, and 130C, and partially cover the LED elements 130A, 130B, and 130C. and the first printing patterns 151A, 151B, and 151C. As shown in Figure 1, taking the light path emitted by the LED element 130B as an example, after the light emitted by the LED element 130B is diffused by the colloid 150, part of the light only passes through the first printing pattern. The pattern 151B is then diffused by the diffusion plate 170, and another part of the light passes through the first printing pattern 151B, and then diffuses again through the diffusion plate 170, and the diffused light will pass through the second printing patterns 171B and 171C respectively to complete the light. of homogenization.

此外，如圖1所示，在第一實施例中，各LED元件130A、130B、130C彼此中心至中心之間的距離d係為3至5mm。第一印刷圖案151A、151B、151C係以油墨印刷的方式，印刷於膠體150上，而第二印刷圖案171A、171B、171C、171D以油墨印刷的方式，印刷於擴散板170上。第一印刷圖案151A、151B、151C及第二印刷圖案171A、171B、171C、171D之圖形例如為圓形或多邊形等。 In addition, as shown in FIG. 1 , in the first embodiment, the center-to-center distance d between each LED element 130A, 130B, and 130C is 3 to 5 mm. The first printing patterns 151A, 151B, and 151C are printed on the colloid 150 using ink printing, and the second printing patterns 171A, 171B, 171C, and 171D are printed on the diffusion plate 170 using ink printing. The shapes of the first printing patterns 151A, 151B, 151C and the second printing patterns 171A, 171B, 171C, and 171D are, for example, circles or polygons.

在第一實施例中示出了各第一印刷圖案151A、151B、151C的數量對應LED元件130A、130B、130C的數量，且各第一印刷圖案151A、151B、151C的中心對應於一對應之LED元件130A、130B、130C的中心設置，但不限於此。請參閱圖2。圖2為根據一第二實施例燈板結構的示意圖。在第二實施例中，各第二印刷圖案271A、271B、271C的數量對應LED元件230A、230B、230C的數量，且各第二印刷圖案271A、271B、271C的中心對應於一對應之LED元件230A、230B、230C的中心設置。此外，複數個第一印刷圖案251係例如為四個第一印刷圖案251A、251B、251C、251D，且設置於偏離LED元件230A、230B、230C的中心之位置，並局部地覆蓋LED元件230A、230B、230C。在第二實施例中，以LED元件230B所射出之光路徑為例，LED元件230B所射出之光，部分之光經由膠體250及擴散板270擴散後僅經過第二印刷圖案271B，而另一部分之光則經由膠體250擴散後分別經過第一印刷圖案251B、251C，接著經由擴散板270再次擴散，而所擴散之光將再經過第二印刷圖案271B，以完成光線之均勻化。 In the first embodiment, it is shown that the number of each first printing pattern 151A, 151B, 151C corresponds to the number of LED elements 130A, 130B, 130C, and the center of each first printing pattern 151A, 151B, 151C corresponds to a corresponding The LED elements 130A, 130B, and 130C are arranged in the center, but are not limited to this. See Figure 2. FIG. 2 is a schematic diagram of a light panel structure according to a second embodiment. In the second embodiment, the number of each second printing pattern 271A, 271B, and 271C corresponds to the number of LED elements 230A, 230B, and 230C, and the center of each second printing pattern 271A, 271B, and 271C corresponds to a corresponding LED element. Center settings for 230A, 230B, and 230C. In addition, the plurality of first printing patterns 251 are, for example, four first printing patterns 251A, 251B, 251C, and 251D, and are arranged at positions deviated from the centers of the LED elements 230A, 230B, and 230C, and partially cover the LED elements 230A, 230A, and 230C. 230B, 230C. In the second embodiment, taking the light path emitted by the LED element 230B as an example, part of the light emitted by the LED element 230B is diffused by the colloid 250 and the diffusion plate 270 and only passes through the second printing pattern 271B, while the other part The light is diffused by the colloid 250 and passes through the first printing patterns 251B and 251C respectively, and then diffuses again through the diffusion plate 270, and the diffused light will pass through the second printing pattern 271B to complete the uniformity of the light.

此外，在第一實施例中示出了第二印刷圖案171A、171B、171C、171D設置於偏離LED元件130A、130B、130C的中心之位置，並局部地覆蓋LED元件130A、130B、130C，但不限於此。請參閱圖3。圖3為根據一第三實施例燈板結構的示意圖。在第三實施例中，第二印刷圖案371A、371B、371C、371D設置於偏離LED元件330A、330B、330C的中心之位置，且於第一方向上完全未覆蓋LED元件330A、330B、330C。即，僅有第一印刷圖案351A、351B、351C覆蓋對應之一對應之LED元件330A、330B、330C。在第三實施例中，以LED元件330B所射出之光路徑為例，LED元件330B所射出之光經由膠體350擴散後，部分之光僅經過第一印刷圖案351B後由擴散板370擴散出，而另一部分之光經過第一印刷圖案351B，接著經由擴散板370再次擴散，而所擴散之光將再分別經過第二印刷圖案371B、371C，以完成光線之均勻化。此外，以圖3的示例來說，一個LED元件330B將配合二個第二印刷圖案371B、371C，而二個LED元件330A、330B將共用一第二印刷圖案371B，但不限於此，在其他實施態樣中，亦可以增加第二印刷圖案371之數量，使各LED元件330A、330B、330C分別單獨配合二個第二印刷圖案371。 In addition, in the first embodiment, it is shown that the second printing patterns 171A, 171B, 171C, and 171D are provided at positions offset from the centers of the LED elements 130A, 130B, and 130C, and partially cover the LED elements 130A, 130B, and 130C. However, Not limited to this. See Figure 3. FIG. 3 is a schematic diagram of a light panel structure according to a third embodiment. In the third embodiment, the second printing patterns 371A, 371B, 371C, and 371D are disposed at positions deviated from the centers of the LED elements 330A, 330B, and 330C, and do not completely cover the LED elements 330A, 330B, and 330C in the first direction. That is, only the first printing patterns 351A, 351B, and 351C cover the corresponding one of the corresponding LED elements 330A, 330B, and 330C. In the third embodiment, taking the light path emitted by the LED element 330B as an example, after the light emitted by the LED element 330B is diffused by the colloid 350, part of the light only passes through the first printing pattern 351B and is diffused by the diffusion plate 370. The other part of the light passes through the first printing pattern 351B, and then is diffused again through the diffusion plate 370, and the diffused light will pass through the second printing patterns 371B and 371C respectively to complete the uniformization of the light. In addition, taking the example of FIG. 3 as an example, one LED element 330B will match two second printing patterns 371B and 371C, and two LED elements 330A and 330B will share a second printing pattern 371B. However, it is not limited to this. In other cases, In an implementation aspect, the number of second printing patterns 371 can also be increased, so that each LED element 330A, 330B, and 330C is individually matched with two second printing patterns 371.

請參閱圖4。圖4為根據一第四實施例燈板結構的示意圖。在第四實施例中，第一印刷圖案451A、451B、451C及第二印刷圖案471A、471B、471C的數量皆對應LED元件430A、430B、430C的數量且彼此相互對應設置，而第一印刷圖案451A、451B、451C及第二印刷圖案471A、471B、471C於第一方向上彼此相互重疊並完全覆蓋該些LED元件430A、430B、430C。進一步地，第一印刷圖案451A、451B、451C的中心對應 於一對應之LED元件430A、430B、430C的中心設置，第二印刷圖案471A、471B、471C的中心對應於一對應之第一印刷圖案451A、451B、451C的中心及對應之LED元件430A、430B、430C的中心設置。在第四實施例中，以LED元件430B所射出之光路徑為例，LED元件430B所射出之光經由膠體450擴散並經過第一印刷圖案451B，接著進一步經由擴散板470擴散並再經過第二印刷圖案471B，以完成光線的均勻化。 See Figure 4. FIG. 4 is a schematic diagram of a lamp panel structure according to a fourth embodiment. In the fourth embodiment, the numbers of the first printing patterns 451A, 451B, 451C and the second printing patterns 471A, 471B, 471C correspond to the numbers of the LED elements 430A, 430B, 430C and are arranged corresponding to each other, and the first printing pattern 451A, 451B, 451C and the second printed patterns 471A, 471B, 471C overlap each other in the first direction and completely cover the LED elements 430A, 430B, 430C. Further, the centers of the first printing patterns 451A, 451B, and 451C correspond to Disposed at the center of a corresponding LED element 430A, 430B, 430C, the center of the second printing pattern 471A, 471B, 471C corresponds to the center of a corresponding first printing pattern 451A, 451B, 451C and the corresponding LED element 430A, 430B , 430C center setting. In the fourth embodiment, taking the light path emitted by the LED element 430B as an example, the light emitted by the LED element 430B is diffused through the colloid 450 and passes through the first printing pattern 451B, and then is further diffused through the diffusion plate 470 and passes through the second printing pattern 451B. Print pattern 471B to complete the uniformity of light.

如此，燈板結構透過第一印刷圖案及第二印刷圖案不同的設置方式，以不同的方式對光進行均勻化，解決對應不同類型之Mura現象。 In this way, the light panel structure uniformizes light in different ways through different arrangements of the first printing pattern and the second printing pattern, and solves different types of Mura phenomena.

100:燈板結構 100:Light panel structure

110:基板 110:Substrate

130,130A,130B,130C:LED元件 130,130A,130B,130C: LED components

150:膠體 150: Colloid

151,151A,151B,151C:第一印刷圖案 151,151A,151B,151C: first printing pattern

170:擴散板 170: Diffusion plate

171,171A,171B,171C,171D:第二印刷圖案 171,171A,171B,171C,171D: Second printing pattern

d:距離 d: distance

Claims (6)

一種燈板結構，包括：一基板；複數個LED元件，設於該基板；一膠體，設於該基板並包覆該些LED元件，該膠體包括一第一印刷圖案；以及一擴散板，設於該膠體上，該擴散板包括一第二印刷圖案；其中，該第一印刷圖案及該第二印刷圖案其中之一對應該些LED元件設置，且於一第一方向上完全覆蓋對應之該LED元件；其中，該第一印刷圖案及該第二印刷圖案其中之一的中心對應於對應之該LED元件的中心設置，且該第一印刷圖案及該第二印刷圖案彼此交錯地排列。 A lamp panel structure includes: a substrate; a plurality of LED elements provided on the substrate; a colloid provided on the substrate and covering the LED elements, the colloid including a first printing pattern; and a diffusion plate provided On the colloid, the diffusion plate includes a second printing pattern; wherein one of the first printing pattern and the second printing pattern is arranged corresponding to the LED elements and completely covers the corresponding LED elements in a first direction. LED element; wherein, the center of one of the first printing pattern and the second printing pattern is arranged corresponding to the center of the corresponding LED element, and the first printing pattern and the second printing pattern are arranged staggeredly with each other. 如請求項1所述之燈板結構，其中，該第一印刷圖案及該第二印刷圖案其中之另一設置於偏離之該些LED元件的中心之位置，並局部地覆蓋該些LED元件。 The light panel structure as claimed in claim 1, wherein the other one of the first printing pattern and the second printing pattern is disposed at a position offset from the center of the LED elements and partially covers the LED elements. 如請求項1所述之燈板結構，其中，該第一印刷圖案及該第二印刷圖案其中之另一設置於偏離該些LED元件的中心之位置，且於該第一方向上完全未覆蓋該LED元件。 The light panel structure as claimed in claim 1, wherein the other one of the first printing pattern and the second printing pattern is disposed at a position offset from the center of the LED elements and is completely uncovered in the first direction. the LED component. 如請求項1所述之燈板結構，其中，各該LED元件的中心之間的距離係為3至5mm。 The light panel structure as claimed in claim 1, wherein the distance between the centers of the LED elements is 3 to 5 mm. 如請求項1所述之燈板結構，其中，該第一印刷圖案及該第二印刷圖案例如為圓形或多邊形等。 The light panel structure of claim 1, wherein the first printing pattern and the second printing pattern are, for example, circular or polygonal. 如請求項1所述之燈板結構，其中，該第一印刷圖案係以油墨印刷於該膠體上，該第二印刷圖案係以油墨印刷於該擴散板上。 The lamp panel structure as claimed in claim 1, wherein the first printing pattern is printed on the colloid with ink, and the second printing pattern is printed on the diffusion plate with ink.
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