TWI286615B - Edge-lighting light-guiding plate for reducing the dark field in the input side - Google Patents

Abstract

The present invention relates to an edge-lighting light-guiding plate for reducing the dark field in the input side. It includes a light-guiding unit made by a first refractive index material having a first zone and a second zone; and several light-guiding portions made by a second refractive index material that are disposed on the second zone. The first refractive index is larger than the second refractive index. There are several interval portions between every two neighboring light-guiding portions. A light is emitted into these light-guiding portions in the second zone and emitted out from the light-leaving edges of the light-guiding portions with different refraction angles. So, the first zone becomes brighter with better uniformity and also eliminates the dark field. In this invention, it significantly reduces the dark field in the blank region. It enhances the brightness and uniformity of the light-guiding unit. It increases the total display area. And, it does not need any extra electricity.

Description

1286615 'V. Description of the Invention (1) Technical Field of the Invention The present invention relates to a side light type light guide plate which can improve the dark side of the light incident side, which has the function of improving the dark band of the white space and increasing The uniformity and brightness of the light guiding unit, the area of the display area are increased, and the power is not used. [Prior Art] - The conventional side light type light guide plate is as shown in the eighth and ninth figures, and includes a light guiding unit 80 having at least a first surface 801 and a second surface 802. a third surface 803, the light guide plate 8 is provided with at least a first region f domain 81 (ie, display region), a second region 82 (ie, a blank region), and a plurality of microstructures 83, a plurality of microstructures 8 3 is located on the second surface 8 〇 2, whereby a plurality of (assumed to be three) illumination elements 9 1 are illuminated toward the light guiding unit 8 , and then the light 911 is reflected by the plurality of microstructures 83 from the first One side of 8 〇 is a surface light source. 0 The conventional device produces the following defects: [1]·The white space creates a dark band phenomenon. Conventional light guide unit 8

The third surface 8〇3 on the second area 82 (the white area) is illuminated by the light 911 of the illumination element 91, and the light 911 is reflected by the first surface 801 to emit light from the surface light source. However, the line 91i is left blank. Zone Xiao, due to the phenomenon of refraction, produces a plurality of dark bands #1, D and E, which affect the lighting effect of the white space, which is missing. [2]·The uniformity of the light-guided soap element is selected by the fish, and the fart π A Γ· i 1 has poor brightness. The conventional structure creates a dark band due to the refraction and is easy to leave the white area (for example, Μ会#乡道--t Annex D, D and E). The uniformity of the first light and the first light Brightness. L 3 ]·Power is required. Conventional device u can increase the side of the lighting component

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It is necessary to change the circuit design and affect the implementation. 5. The invention description (2) reduces the dark band, but the power stability when jl. Therefore, it is necessary to develop a side light type light guide plate having a simple and stable structure. Further, the main purpose of the present invention is to connect the side light-type light guide plate of the ^^^, which can be modified to cover the left side of the light-incident side of the present invention. With a phenomenon. The side light type light guide plate of the present invention is further a side light type light guide plate of the present invention, which can increase the light guide side of the second light entrance side. Degree and brightness. =: It is to provide a kind of dark band that can improve the light entering side. Eight can increase the area of the display area. = is to provide a kind of improvement on the light side of the dark band ^ ^ 8fl. ^ Eight has the advantage that the light guide does not use electricity. , the side light-type light guide plate on the light-incident side dark band, the second side between the second side; the second ... perpendicular to the first - 4 = single 7 ", at least - the - region, and - the connection a second region of the middle & the light guide unit and having a first refraction zone between the first face and the second face, the second face/having a plurality of microstructures a plurality of microstructures forming the first region, between the first surface and the second surface,

1286615 V. INSTRUCTIONS (3) The three sides are located on the side of the second area, and the fixing portion is provided with a plurality of-refractive portions on each of the two fixed portions, and each of the light guiding portions has a second Refractive index, the second portion of the fixed portion of the region, each of the guides is fixed at the first light-emitting end portion, and the first portion has at least the light-incident end portion and the above-mentioned objects and advantages of the present invention. In detail, the sun, the moon and the drawings are well understood. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The second figure includes a light guiding unit 1 〇 and a plurality of light guiding portions 20 disposed on the light guiding light, and the light guiding unit 1 〇 has a first refractive index nl (nl = 2) The light guiding unit 2〇 has a second refractive index n2 (n2=b 2), and the light guiding unit 1〇 and the light guiding unit 2〇 are respectively made of two refractive indexes; the light guiding unit 10 has a The first surface 1〇1, the second surface 1〇2, and the third surface 1〇3 perpendicular to the first and second surfaces 1〇1 and 1〇2. The light guide unit 10 is provided with at least a first area 丨丨 and a second area 12 connected to the first area 11, wherein: the first area 11 is located at the first side 1〇 Between the second side 1 〇 2, the first area 1 1 has at least a plurality of microstructures 13 , and a plurality of microstructures 13 are formed on the second surface 1 〇 2; the second area 12 is located at Between the first surface 1〇1 and the second surface 1〇2, the third surface 103 is located on the side of the second area 12, the second 1286615 five, invention description (4) two ^ Shang Han There are a plurality of fixing portions 1 2 1 , and each of the two fixing portions 1 2 1 is spaced apart from a spacing portion 122 (as shown in the third figure); 1 2 light guiding portions 2G 'each light guiding portion 20 Each of the light guiding portions 2 has at least a light incident end portion 22, and the light incident end portion 21 is substantially planar and substantially located at ^m=face 1〇. 3; the light-emitting end portion 22 has a semi-circular arc surface and faces the fixing portion 1 21 substantially. ^This is a side light-type light guide plate that can improve the dark side of the light entrance side. Referring to the second and third figures, a plurality of light-emitting portions 20 are provided for a plurality of light-emitting portions 20 (in the preferred embodiment of the present invention, a plurality of light-emitting two bodies are provided). Each of the illumination elements 91, each of the illumination elements 91 generally emits light toward the light guide unit 10. Each of the illumination elements 9 emits light 9丨1, and after illuminating the light guide unit 10, the following two light illumination effects are generated: = first, and the light 911 is irradiated to the second area 12 (ie, The light guiding portion 20 of the light unit 1 is separated from the light-incident end portion 22 by the light-incident end portion 22, and follows the semi-circular surface of the light-emitting end portion 22 at different refraction angles. The principle is not described in detail.) The second region 12 and the first region 11# ^ $ emit light 912, and simultaneously irradiate each of the fixing portions 121 and each of the spacer portions, the body is laterally illuminated), so that each fixing portion 121 The effect of the illumination with the spacer 122 is relatively uniform, and each of the spacers 122 has almost no dark band (as shown in the first and second views of the attached one). Again, light ray 911 enters first region η from second region 12. After the light enters the first region U, the 911 hits the micro-junction on the second surface 102.

Page 10 1286615 V. INSTRUCTION DESCRIPTION (5) 'Reflecting to the first surface 101 forms a surface light source to illuminate, so that the first region n becomes the brightest display area of the light guiding unit 10' for displaying images, characters, and the like. Referring to the fourth and fifth figures, a second embodiment of the present invention is provided. Each of the two light guiding portions 20, including the inside thereof, is provided with a plurality of scattering particles 3, and the size of each scattering particle 30 is substantially Between 50//m-200^^, such a design is such that when the light ray 911 of the illumination element 91 is irradiated to the guide and the light portion 20 of the second region 12, not only the different refraction angles are simultaneously irradiated to each The fixing portion 121 and each of the spacer portions 122 further enhance the illumination effect of the light ray 911 by the spherical refraction "1 of each scattering particle 3" (as shown in the sixth figure), so that each fixing portion 121 and the interval The illumination effect of portion 122 is more even (as shown in Figure VII of Annex 1). In more detail, the present invention divides the light guiding unit 1 into a first region 11 (ie, a display region) and a second region 12 (ie, a blanking region), and the microstructure 13 of the first region 11 is distributed through a predetermined design. On the second side 1〇2, the first area 11 is used as a display area of the light guiding unit 10 to emit bright light for displaying characters or images. The light guiding portion 20 is disposed on the fixing portion 1 21 of the second region 1 2, and the light ray 911 of the illumination element 9 1 is irradiated to the light guiding portion 2 ,, because the semicircular surface of the light guiding portion 20 is 'from different angles The second region 12 and the first region 11 are refracted to make the first region 11 brighter, and the brightness of the fixing portion 121 and the spacer portion 122 of the second region 12 is relatively uniform, and the length of the second region 12 is reduced to approximately Equal to or less than 1·5 mm (as shown in the seventh figure), the area of the first area 11 for displaying text and images is further increased. The advantages and effects of this creation are as follows:

Page 11 1286615 V. Description of invention (6) Improve the dark band phenomenon in the white space. The creation is placed in the light guide unit, and the light guide portion is disposed on the area, and the light is irradiated to the white space, and at the same time, the light guide is irradiated and refracted from different angles along the semicircular surface of the light guide portion, and the partition is strong. One degree of 'effectively improves the dark band phenomenon in the white space. -ϋ: Add the uniformity and brightness of the light guiding unit. The creation is in the white space: the refractive index difference between the light guiding portion and the light guiding unit is between the Η 弧 邱 & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & & 照射 & 照射 照射 照射. Degree refraction...Enhance the brightness of the partition, the light of the light: (10) the name of the software, not to be mentioned), the design simulation, and the effect of the light, and increase the uniformity and brightness of the light guide unit. [3] · Increase the area of the display area. False _ length is a, the original length of the blank area is b, when leaving j = = = about ( (or less than) l.5mm, the total area of the display area (4), can increase the area of the display area. « ^a + (b~l. 5) [4]· No electricity. In the creation of the brightness of the white space, the light of the lighting element is illuminated to the guide. The part strengthens the interval brightness, so there is no power at all, and the two are not strong due to refraction. The power of the present invention is clarified by the above detailed description, so that it can be understood that the above-mentioned objects can be achieved by the prior art. The provisions of the Patent Law, 爰 proposed [Annex 1] The first diagram is a schematic diagram of the experimental structure of the present invention, and the B diagram is a schematic diagram of the experimental structure of the present invention.

1286615 V. INSTRUCTION DESCRIPTION (7) Figure C is a schematic diagram of the experimental structure of the present invention. Figure D is a schematic diagram of the experimental structure of the conventional structure. Figure E is a schematic diagram of the experimental structure of the conventional structure.

Page 13 1286615 Brief description of the drawings [Simplified description of the drawings] The first drawing is the second drawing of the present invention, the third drawing is the fourth drawing of the present invention, and the fourth drawing of the present invention is the fifth drawing of the present invention. The fourth figure is the sixth figure, the fifth part, the seventh figure is the invention of the invention, the eighth figure is the ninth picture of the conventional device, the eighth figure is the main part symbol description 10, 80 light guiding unit 102, 802 second surface 11, 81 first region 1 2 1 fixed portion 13, 83 microstructure 2 1 light incident end portion 30 scattering particles 1 9 11 light n L · first refractive index view is not intended to divide the device embodiment BRIEF DESCRIPTION OF THE DRAWINGS FIG. 2 is a schematic diagram of an embodiment of a schematic device. The schematic structure of the schematic device is not intended to be used for a schematic diagram of a schematic diagram of a mobile phone screen. 803 third surface 12, 82 second region 1 2 2 spacer portion 2 0 light guiding portion 2 2 light emitting end portion 9 1 illumination element 91 2 refractive ray η 2 second refractive index

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Claims (1)

Longzheng is more suitable, 1286615 Case No. 94117967 VI. Patent Application No. 1 · A side light-type light guide plate capable of improving the dark side of the light-incident side, comprising a light guiding unit and a plurality of light guiding lights disposed on the light guiding unit The light guiding unit has a first surface, a second surface, and a third surface perpendicular to the first and second surfaces; wherein: the light guiding unit is provided with at least a first region, and a Connecting the second region of the first region, the light guiding unit has a first refractive index, wherein: the first region is located between the first surface and the second surface, the first region has at least a plurality of microstructures, a plurality of micro-systems are formed on the two sides; the second region is located at the first surface and the second surface, and the third surface is located on the side of the second region The second region has a plurality of fixing portions, each of the two fixing portions is spaced apart from the spacer portion 1 by a plurality of light guiding portions, and each of the light guiding portions has a second folding portion. The first refractive index is greater than the second refractive index. Rate; each light guiding portion is fixed on the fixed portion of the second region, each A light receiving unit are twenty input end portion and an end portion of the light; and the upper portion of each of the light guide, scoop up their internal, are provided with a plurality of scattering particles.侧', as described in claim 1, the side light-type light guide plate capable of improving the dark side of the light-incident side, wherein: the first area is a display area of the light guiding unit; a blanking area of the light guiding unit; the light incident end portion is substantially flat; the light emitting end portion has a semicircular arc surface. Page 15 1286615 Also, narrowly! -mtr VI. Patent application scope 3. If applying for the light-guided light, the second light-injection end angle, a fixed part is more uniform. 4. If applying for a light-guided light guide | The side plate of the dark side of the light-incident side can be improved according to the first item of the item No. 94117967, wherein: the light guiding portion of the area is irradiated by a light, and the light passes through the light-emitting end portion, and then the light is emitted. The ends are illuminated with different folds toward the second region and the first region, and simultaneously irradiate each of the spacers to produce brightness of each of the fixed portions and the spacers. 5) The length of the area is approximately equal to or less than 1. 5mm; the size of the shot particles is substantially between 5 0 // m - 2 0 0 // m. between. Page 16