TWM504279U - Reflective display module and electronic device using the same - Google Patents
Reflective display module and electronic device using the same Download PDFInfo
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- TWM504279U TWM504279U TW102219979U TW102219979U TWM504279U TW M504279 U TWM504279 U TW M504279U TW 102219979 U TW102219979 U TW 102219979U TW 102219979 U TW102219979 U TW 102219979U TW M504279 U TWM504279 U TW M504279U
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Abstract
Description
本新型涉及一種顯示模組,尤其涉及一種反射式顯示模組及使用該反射式顯示模組之電子裝置。The present invention relates to a display module, and more particularly to a reflective display module and an electronic device using the reflective display module.
電子裝置中通常設置有顯示模組,以顯示文字、圖案等資訊,例如電子書。穿透式顯示模組包括顯示面板、設置在顯示面板一側之光源及導光板、設置在顯示面板另一側之觸控層及設置在觸控層上之保護蓋板等,反射式顯示模組包括顯示面板、設置在顯示面板上之光源及導光板、設置在導光板上之觸控層及設置在觸控層上之保護蓋板等。上述二種形式之顯示模組中之保護蓋板用於保護內部觸控層,避免損傷觸控層,影響顯示及觸控效果。然,上述結構之顯示模組結構包含之結構層數較多,因此相互連接之定位結構(例如膠黏或卡扣等結構)也增多,使得顯示模組結構複雜,厚度較厚,不利於顯示模組及電子裝置之輕薄化。A display module is usually provided in the electronic device to display information such as characters and patterns, such as an e-book. The transmissive display module includes a display panel, a light source and a light guide plate disposed on one side of the display panel, a touch layer disposed on the other side of the display panel, and a protective cover plate disposed on the touch layer, and the reflective display module The group includes a display panel, a light source and a light guide plate disposed on the display panel, a touch layer disposed on the light guide plate, and a protective cover plate disposed on the touch layer. The protective cover of the above two types of display modules is used to protect the internal touch layer, thereby avoiding damage to the touch layer and affecting display and touch effects. However, the display module structure of the above structure includes a large number of structural layers, so that the interconnected positioning structures (such as adhesive or buckle structures) are also increased, so that the display module has a complicated structure and a thick thickness, which is disadvantageous for display. The module and the electronic device are light and thin.
鑒於上述內容,有必要提供一種結構簡單且厚度較薄之反射式顯示模組及使用該反射式顯示模組之電子裝置。In view of the above, it is necessary to provide a reflective display module having a simple structure and a thin thickness and an electronic device using the reflective display module.
一種顯示模組,其包括顯示面板、設置在該顯示面板上之觸控層、設置在觸控層上之導光板、設置在該導光板一端之光源以及設置在該導光板上之硬化層,其中該導光板與該顯示面板分別位於該觸控層之相對二側,該硬化層塗覆在該導光板遠離該觸控層之表面。A display module includes a display panel, a touch layer disposed on the display panel, a light guide plate disposed on the touch layer, a light source disposed at one end of the light guide plate, and a hardened layer disposed on the light guide plate. The light guide plate and the display panel are respectively located on opposite sides of the touch layer, and the hardened layer is coated on the surface of the light guide plate away from the touch layer.
進一步地,該硬化層以塗布方式形成。Further, the hardened layer is formed by coating.
進一步地,該硬化層以浸塗、滾塗、噴塗或淋塗之方式形成。Further, the hardened layer is formed by dip coating, roll coating, spray coating or shower coating.
進一步地,該導光板包括入光面、第一出光面及第二出光面,該入光面連接該第一出光面及第二出光面,該光源鄰近該入光面設置,該第二出光面朝向該觸控層,該第一出光面位於與該第二出光面相對之一側,且與該硬化層連接。Further, the light guide plate includes a light incident surface, a first light emitting surface and a second light emitting surface, wherein the light incident surface is connected to the first light emitting surface and the second light emitting surface, and the light source is disposed adjacent to the light incident surface, the second light emitting The surface faces the touch layer, and the first light-emitting surface is located on a side opposite to the second light-emitting surface and is connected to the hardened layer.
進一步地,該導光板之第二出光面上形成複數反射凸起,且該複數反射凸起間隔設置。Further, a plurality of reflective protrusions are formed on the second light-emitting surface of the light guide plate, and the plurality of reflective protrusions are spaced apart.
進一步地,每一反射凸起之直徑小於40微米。Further, each of the reflective protrusions has a diameter of less than 40 microns.
進一步地,該導光板之第一出光面上形成複數反射凹點,且該複數反射凹點間隔設置。Further, a plurality of reflective pits are formed on the first light-emitting surface of the light guide plate, and the plurality of reflective pits are spaced apart.
進一步地,每反射凸起包括反射面,該反射面為外凸圓弧面,該反射面與該第二出光面相連接。Further, each of the reflective protrusions includes a reflective surface, and the reflective surface is an outer convex arc surface, and the reflective surface is connected to the second light emitting surface.
進一步地,該導光板由不同材料形成之複數層材質層組成,且其中至少二層材質層之反射率不同。Further, the light guide plate is composed of a plurality of material layers formed of different materials, and at least two of the material layers have different reflectances.
進一步地,該複數層材質層中之至少一層之折射率大於或等於1.53。Further, at least one of the plurality of material layers has a refractive index greater than or equal to 1.53.
進一步地,該複數層材質層中之至少一層之材料包括聚碳酸酯、環烯烴類共聚物、環烯烴共聚物、聚丙烯酸酯、聚苯乙烯丙烯酸酯共聚物中之至少一種。Further, the material of at least one of the plurality of material layers includes at least one of a polycarbonate, a cycloolefin copolymer, a cyclic olefin copolymer, a polyacrylate, and a polystyrene acrylate copolymer.
進一步地,該複數層材質層中折射率最大之材質層之厚度最大。Further, the material layer having the largest refractive index among the plurality of material layers has the largest thickness.
13. 如申請專利範圍第9或10項所述之顯示模組,其中該複數層材質層中與該硬化層相接之材質層之硬度高於其他材質層之硬度。13. The display module according to claim 9 or claim 10, wherein the hardness of the material layer of the plurality of material layers that is in contact with the hardened layer is higher than the hardness of the other material layers.
進一步地,該複數層材質層中折射率最高之材質層之厚度大於或等於0.25毫米。Further, the thickness of the material layer having the highest refractive index among the plurality of material layers is greater than or equal to 0.25 mm.
進一步地,該硬化層中包含複數顆粒。Further, the hardened layer contains a plurality of particles.
進一步地,該導光板中之複數層材質層之厚度不同,該複數顆粒之折射率與導光板中最大厚度之材質層之折射率不同。Further, the thickness of the plurality of material layers in the light guide plate is different, and the refractive index of the plurality of particles is different from the refractive index of the material layer of the maximum thickness of the light guide plate.
進一步地,該硬化層之表面能小於或等於25達因/公分,水滴接觸角大於或等於90度。Further, the surface energy of the hardened layer is less than or equal to 25 dynes/cm, and the contact angle of the water droplets is greater than or equal to 90 degrees.
進一步地,該觸控層藉由第一黏接層黏附在該顯示面板上,該導光板及該光源藉由第二黏接層黏附在該觸控層上。Further, the touch layer is adhered to the display panel by the first adhesive layer, and the light guide plate and the light source are adhered to the touch layer by the second adhesive layer.
進一步地,該光源之厚度小於或等於該導光板之厚度。Further, the thickness of the light source is less than or equal to the thickness of the light guide plate.
進一步地,該顯示模組還包括遮蔽層,該遮蔽層塗覆在該導光板之週邊及該光源上,且位於該硬化層靠近該導光板之一側,該硬化層之週邊形成在該遮蔽層上。Further, the display module further includes a shielding layer, the shielding layer is coated on the periphery of the light guiding plate and the light source, and the hardening layer is located near one side of the light guiding plate, and the periphery of the hardening layer is formed in the shielding layer On the floor.
進一步地,該顯示模組還包括遮蔽層,該遮蔽層塗覆在該硬化層之週邊上,並位於該硬化層遠離該導光板之一側。Further, the display module further includes a shielding layer coated on the periphery of the hardened layer and located on a side of the hardened layer away from the light guide plate.
進一步地,該顯示模組還包括遮蔽層,該遮蔽層塗覆在該導光板之週邊,且位於遠離該硬化層並靠近該觸控層之一側。Further, the display module further includes a shielding layer coated on the periphery of the light guide plate and located away from the hardened layer and adjacent to one side of the touch layer.
進一步地,該入光面為拋光斜面,該光源靠近該導光板之一側形成有傾斜面,該傾斜面與該入光面相貼合。Further, the light incident surface is a polishing slope, and the light source is formed with an inclined surface adjacent to one side of the light guide plate, and the inclined surface is in contact with the light incident surface.
進一步地,該硬化層之表面硬度高於該導光板之表面硬度。Further, the surface hardness of the hardened layer is higher than the surface hardness of the light guide plate.
進一步地,該硬化層之表面能低於該導光板之表面能。Further, the surface energy of the hardened layer is lower than the surface energy of the light guide plate.
一種電子裝置,其包括外殼及容納在外殼中之顯示模組,該顯示模組包括顯示面板、設置在該顯示面板上之觸控層、設置在觸控層上之導光板、設置在該導光板一端之光源以及設置在該導光板上之硬化層,其中該導光板與該顯示面板分別位於該觸控層之相對二側,該硬化層塗覆在該導光板遠離該觸控層之表面。An electronic device includes a housing and a display module housed in the housing, the display module includes a display panel, a touch layer disposed on the display panel, a light guide plate disposed on the touch layer, and the guide a light source at one end of the light plate and a hardened layer disposed on the light guide plate, wherein the light guide plate and the display panel are respectively located on opposite sides of the touch layer, and the hardened layer is coated on the surface of the light guide plate away from the touch layer .
上述顯示模組中之導光板較觸控層靠近使用者,因此導光板即可起導光作用也可起保護作用,能夠保護觸控層,避免觸控層損傷,而無需另在靠近開口處設置一保護觸控層之保護蓋板,結構較簡單,降低了顯示模組之厚度以利於輕薄化,簡化了組裝步驟,降低了製造成本。另,由於減少了保護蓋板等結構,因此也減少了黏結層之數量,降低了光損失率,提高光之有效利用率。The light guide plate of the display module is closer to the user than the touch layer, so that the light guide plate can serve as a light guide and protect the touch layer, thereby preventing the touch layer from being damaged, without needing to be close to the opening. Providing a protective cover for protecting the touch layer has a simple structure, reduces the thickness of the display module to facilitate thinning, simplifies assembly steps, and reduces manufacturing costs. In addition, since the structure such as the protective cover is reduced, the number of the bonding layers is also reduced, the light loss rate is lowered, and the effective utilization of light is improved.
100‧‧‧電子裝置100‧‧‧Electronic devices
10‧‧‧外殼10‧‧‧ Shell
11‧‧‧開口11‧‧‧ openings
13‧‧‧容納腔13‧‧‧ accommodating chamber
30、200、300、400、500、600、700、800‧‧‧顯示模組30, 200, 300, 400, 500, 600, 700, 800‧‧‧ display modules
31‧‧‧顯示面板31‧‧‧ display panel
33‧‧‧觸控層33‧‧‧ touch layer
34‧‧‧第一黏接層34‧‧‧First bonding layer
35、350、35’、354、356、358‧‧‧導光板35, 350, 35', 354, 356, 358‧‧‧ light guides
3501‧‧‧第一材質層3501‧‧‧First material layer
3502‧‧‧第二材質層3502‧‧‧Second material layer
351、351’‧‧‧入光面351, 351'‧‧‧ into the glossy
353、353’‧‧‧第一出光面353, 353’ ‧ ‧ first light surface
355、3545、3585、355’‧‧‧第二出光面355, 3545, 3585, 355'‧‧‧ second glazing
36、36’、360、362、364‧‧‧光源36, 36', 360, 362, 364‧‧‧ light source
361‧‧‧傾斜面361‧‧‧ sloped surface
357‧‧‧反射凸起357‧‧‧Reflecting bulges
357’‧‧‧反射凹點357’‧‧‧ Reflection pit
359、359’‧‧‧反射面359, 359' ‧ ‧ reflective surface
37、37’‧‧‧第二黏接層37, 37'‧‧‧Second adhesion layer
38、38’、 380、381‧‧‧遮蔽層38, 38’, 380, 381‧‧ ‧ shadowing layer
39、390、39’、 391、 392‧‧‧硬化層39, 390, 39', 391, 392‧‧‧ hardened layers
圖1係所示為本新型第一實施方式中之電子裝置之剖面示意圖。1 is a schematic cross-sectional view showing an electronic device in a first embodiment of the present invention.
圖2係圖1所示電子裝置之顯示模組之剖面示意圖。2 is a schematic cross-sectional view showing a display module of the electronic device shown in FIG. 1.
圖3係本新型第二實施方式中之顯示模組之剖面示意圖。3 is a schematic cross-sectional view showing a display module in a second embodiment of the present invention.
圖4係本新型第三實施方式中之顯示模組之剖面示意圖。4 is a schematic cross-sectional view showing a display module in a third embodiment of the present invention.
圖5係本新型第四實施方式中之顯示模組之剖面示意圖。FIG. 5 is a schematic cross-sectional view of a display module in a fourth embodiment of the present invention.
圖6係本新型第五實施方式中之顯示模組之剖面示意圖。6 is a schematic cross-sectional view showing a display module in a fifth embodiment of the present invention.
圖7係本新型第六實施方式中之顯示模組之剖面示意圖。7 is a schematic cross-sectional view of a display module in a sixth embodiment of the present invention.
圖8係本新型第七實施方式中之顯示模組之剖面示意圖。8 is a schematic cross-sectional view showing a display module in a seventh embodiment of the present invention.
圖9係本新型第八實施方式中之顯示模組之剖面示意圖。9 is a schematic cross-sectional view showing a display module in an eighth embodiment of the present invention.
請參閱圖1及圖2,本新型第一實施方式中之電子裝置100包括外殼10及裝設在該外殼10中之顯示模組30。外殼10為框體狀,其開設具有開口11之容納腔13,容納腔13藉由開口11與外界連通。顯示模組30藉由設置定位結構(圖未示)與外殼10固定,並位於外殼10之容納腔13中。定位結構可採用卡扣結構、鎖固結構或黏結結構等,僅要其可使顯示模組30定位在外殼10內即可。電子裝置100還包括其他功能元件,以實現電子裝置100之功能,例如CPU、電路板等。為了節省篇幅,在本實施方式中,未對定位結構之具體方式及電子裝置100之CPU、電路板等功能元件做詳細描述,且上述省略之描述不影響本新型技術方案。電子裝置100可為採用反射式顯示模組之電子裝置,例如,電子書、電視、平板電腦等。在本實施方式中,電子裝置100為電子書。Referring to FIG. 1 and FIG. 2 , the electronic device 100 of the first embodiment of the present invention includes a housing 10 and a display module 30 mounted in the housing 10 . The outer casing 10 has a frame shape, and defines a receiving cavity 13 having an opening 11 through which the receiving cavity 13 communicates with the outside. The display module 30 is fixed to the outer casing 10 by a positioning structure (not shown) and is located in the accommodating cavity 13 of the outer casing 10. The positioning structure may adopt a snap structure, a locking structure or a bonding structure, etc., and only needs to position the display module 30 in the outer casing 10. The electronic device 100 also includes other functional components to implement the functions of the electronic device 100, such as a CPU, a circuit board, and the like. In order to save space, in the present embodiment, the specific manner of the positioning structure and the functions of the CPU, the circuit board, and the like of the electronic device 100 are not described in detail, and the description of the above does not affect the present technical solution. The electronic device 100 can be an electronic device using a reflective display module, such as an electronic book, a television, a tablet, or the like. In the present embodiment, the electronic device 100 is an electronic book.
顯示模組30包括均容納在容納腔13中之顯示面板31、觸控層33、第一黏接層34、導光板35、光源36、第二黏接層37、遮蔽層38及硬化層39。顯示面板31設置在外殼10上並封閉該開口11,用於處理文字、圖案訊號等。在本實施方式中,顯示面板31為電子紙模組,其包括電子油墨層(圖未標)及其他實現資訊處理之電子元件等,例如電極。為了節省篇幅,未對顯示面板31之具體結構做詳細描述,且上述省略之描述不影響本新型技術方案。The display module 30 includes a display panel 31, a touch layer 33, a first adhesive layer 34, a light guide plate 35, a light source 36, a second adhesive layer 37, a shielding layer 38, and a hardened layer 39 all accommodated in the receiving cavity 13. . The display panel 31 is disposed on the outer casing 10 and closes the opening 11 for processing characters, pattern signals, and the like. In the present embodiment, the display panel 31 is an electronic paper module including an electronic ink layer (not shown) and other electronic components for realizing information processing, such as electrodes. In order to save space, the detailed structure of the display panel 31 is not described in detail, and the above omitted description does not affect the novel technical solution.
觸控層33藉由第一黏接層34黏附在顯示面板31上。在本實施方式中,第一黏接層34為光學膠。The touch layer 33 is adhered to the display panel 31 by the first adhesive layer 34. In the embodiment, the first adhesive layer 34 is an optical glue.
導光板35及光源36藉由第二黏接層37設置在觸控層33上,且導光板35及光源36與顯示面板31分別位於觸控層33之相對二側。光源36位於導光板35之一側。光源36發出光線,且光線傳輸至導光板35中,以照亮顯示面板31上之文字、圖案等資訊。導光板35包括入光面351、第一出光面353及第二出光面355,入光面351連接第一出光面353及第二出光面355。入光面351鄰近光源36,第一出光面353與第二出光面355大致平行,第二出光面355朝向觸控層33,第一出光面353位於與第二出光面355相對之一側,且與硬化層39相連接。光源36鄰近入光面351設置。光源36之厚度等於或小於導光板35之厚度。在本實施方式中,光源36厚度大致等於導光板35之厚度。光源36發出光線,且發出之光線從入光面351進入導光板35中,並從第一出光面353或第二出光面355射出。光源36可為點光源或線光源,在本實施方式中,光源36為包含LED燈之點光源。在其他實施方式中,LED燈也可替換為其他形式之發光體,例如,冷陰極螢光燈管。在本實施方式中,第二黏接層37為光學膠。The light guide plate 35 and the light source 36 are disposed on the touch layer 33 by the second adhesive layer 37, and the light guide plate 35 and the light source 36 and the display panel 31 are respectively located on opposite sides of the touch layer 33. The light source 36 is located on one side of the light guide plate 35. The light source 36 emits light, and the light is transmitted to the light guide plate 35 to illuminate information such as characters, patterns, and the like on the display panel 31. The light guide plate 35 includes a light incident surface 351, a first light exit surface 353, and a second light exit surface 355. The light incident surface 351 connects the first light exit surface 353 and the second light exit surface 355. The light-incident surface 351 is adjacent to the light source 36, the first light-emitting surface 353 is substantially parallel to the second light-emitting surface 355, the second light-emitting surface 355 is opposite to the touch layer 33, and the first light-emitting surface 353 is located on a side opposite to the second light-emitting surface 355. And connected to the hardened layer 39. The light source 36 is disposed adjacent to the light incident surface 351. The thickness of the light source 36 is equal to or smaller than the thickness of the light guide plate 35. In the present embodiment, the thickness of the light source 36 is substantially equal to the thickness of the light guide plate 35. The light source 36 emits light, and the emitted light enters the light guide plate 35 from the light incident surface 351, and is emitted from the first light exit surface 353 or the second light exit surface 355. The light source 36 can be a point source or a line source. In the present embodiment, the source 36 is a point source including an LED lamp. In other embodiments, the LED light can also be replaced with other forms of illuminators, such as cold cathode fluorescent tubes. In the embodiment, the second adhesive layer 37 is an optical glue.
導光板35可由亞克力(PMMA)、聚苯乙烯丙烯酸酯共聚物(MS)、聚碳酸酯(Polycarbonate)、聚烯烴(Polyolefin)、聚苯乙烯(Polystyrene)或苯乙烯-烯烴聚合物(Styrene-olefin copolymer)等材料或其衍生物製成,在本實施方式中,導光板35為聚碳酸酯材料製成。在其他實施方式中,導光板35還可由其他異於上述列出之材料製成,僅需保證導光板35能夠導光即可。導光板35中還可包含各種添加物,如UV吸收劑、UV安定劑、抗氧化劑、熱安定劑或光擴散粒,以滿足其不同之導光特性。導光板35之透光率大於80%,且霧度小於20%,以使得顯示效果較佳。在其他實施方式中,添加物不限於上述列出之添加物,可根據需添加其他添加劑,以實現相應之功能(如加強光線出射率或減少發熱等),當然也可添加上述列出之添加物中之一種或複數種。The light guide plate 35 may be made of PMMA, polystyrene acrylate copolymer (MS), polycarbonate (polycarbonate), polyolefin (polyolefin), polystyrene or styrene-olefin polymer (Styrene-olefin). The copolymer or the like is made of a material such as a copolymer or a derivative thereof. In the present embodiment, the light guide plate 35 is made of a polycarbonate material. In other embodiments, the light guide plate 35 may also be made of other materials than those listed above, and only the light guide plate 35 is required to be guided. The light guide plate 35 may further contain various additives such as a UV absorber, a UV stabilizer, an antioxidant, a heat stabilizer or a light diffusing particle to satisfy different light guiding characteristics. The light transmittance of the light guide plate 35 is greater than 80%, and the haze is less than 20%, so that the display effect is better. In other embodiments, the additive is not limited to the additives listed above, and other additives may be added as needed to achieve the corresponding functions (such as enhancing the light emission rate or reducing heat generation), and of course, the additions listed above may also be added. One or more of them.
導光板35之第二出光面355上形成有複數反射凸起357,反射凸起357包括與第二出光面355連接之反射面359,反射面359與第二黏接層37接觸。進入導光板35中之光線一部分藉由反射凸起357之反射面359反射後,回到導光板35內,另外部分藉由反射面359及第二出光面355進入第二黏接層37中,並藉由觸控層,到達下層之顯示面板31。到達顯示面板31之光線被吸收或被反射,其中被反射之光線(即未被吸收之光線)由第一出光面353出射至使用者。複數反射凸起357不連續地排列在第二出光面355上,即複數反射凸起357相互間隔。複數反射凸起357可藉由網版印刷、噴墨印刷、納米壓印、熱壓印等方式形成在第二出光面355上,在本實施方式中,反射凸起357由納米壓印之方式形成。在其他實施方式中,反射凸起357不局限於由上述列出之方式形成,僅需保證能夠形成凸起即可。在本實施方式中,反射凸起357之反射面359為外凸弧形面,使得在顯示模組之製作過程中,反射面359與第二黏接層37貼合時,氣泡能夠較容易地被擠壓並排出,避免在接合面殘留氣泡,提高顯示效果。另,為避免反射凸起357被使用者肉眼看到,影響顯示效果,反射凸起357之直徑應越小越好,反射凸起357一般設置為小於100微米(μm),最佳選擇為小於40μm。在本實施方式中,反射凸起357之直徑為30μm。可理解,反射凸起357也可形成在第一出光面353上,並位於導光板35與硬化層39之間。可理解,反射凸起357還可同時形成在第一出光面353及第二出光面355上。A plurality of reflective protrusions 357 are formed on the second light-emitting surface 355 of the light guide plate 35. The reflective protrusions 357 include a reflective surface 359 connected to the second light-emitting surface 355. The reflective surface 359 is in contact with the second adhesive layer 37. A portion of the light entering the light guide plate 35 is reflected by the reflective surface 359 of the reflective protrusion 357, and then returned to the light guide plate 35. The other portion enters the second adhesive layer 37 through the reflective surface 359 and the second light exit surface 355. And through the touch layer, the display panel 31 of the lower layer is reached. The light reaching the display panel 31 is absorbed or reflected, and the reflected light (i.e., the unabsorbed light) is emitted from the first light exiting surface 353 to the user. The plurality of reflective protrusions 357 are discontinuously arranged on the second light-emitting surface 355, that is, the plurality of reflective protrusions 357 are spaced apart from each other. The plurality of reflective protrusions 357 can be formed on the second light-emitting surface 355 by screen printing, inkjet printing, nanoimprinting, hot stamping, etc., in the embodiment, the reflective protrusions 357 are nano-embossed. form. In other embodiments, the reflective protrusions 357 are not limited to being formed by the manners listed above, and it is only necessary to ensure that the protrusions can be formed. In the embodiment, the reflective surface 359 of the reflective protrusion 357 is a convex curved surface, so that when the reflective surface 359 is adhered to the second adhesive layer 37 during the manufacturing process of the display module, the air bubble can be easily It is squeezed and discharged to avoid residual bubbles on the joint surface and improve the display effect. In addition, in order to prevent the reflection protrusion 357 from being visually seen by the user, affecting the display effect, the diameter of the reflection protrusion 357 should be as small as possible, and the reflection protrusion 357 is generally set to be less than 100 micrometers (μm), and the optimal selection is less than 40μm. In the present embodiment, the diameter of the reflection protrusion 357 is 30 μm. It can be understood that the reflective protrusion 357 can also be formed on the first light-emitting surface 353 and between the light guide plate 35 and the hardened layer 39. It can be understood that the reflective protrusions 357 can also be formed on the first light-emitting surface 353 and the second light-emitting surface 355 at the same time.
遮蔽層38形成在導光板35之週緣處,且覆蓋在光源36上,並鄰近開口11。遮蔽層38用以遮蔽光源36並將光源36發出之光反射至導光板35中,以確保光源36發出之所有光線都先進入導光板35後反射出。遮蔽層38之光學密度至少大於3。在本實施方式中,遮蔽層38之顏色為黑色,遮蔽層38為單層,且藉由印刷之方式形成。可理解,在其他實施方式中,遮蔽層38可為複數層。遮蔽層38之顏色可為灰色或白色。A shielding layer 38 is formed at the periphery of the light guide plate 35 and covers the light source 36 adjacent to the opening 11. The shielding layer 38 is used to shield the light source 36 and reflect the light emitted by the light source 36 into the light guide plate 35 to ensure that all the light emitted by the light source 36 is reflected into the light guide plate 35 first. The shielding layer 38 has an optical density of at least greater than three. In the present embodiment, the color of the shielding layer 38 is black, and the shielding layer 38 is a single layer and is formed by printing. It can be understood that in other embodiments, the shielding layer 38 can be a plurality of layers. The color of the masking layer 38 can be gray or white.
硬化層39覆在遮蔽層38及導光板35上,且位於遮蔽層38及導光板35遠離第二黏接層37之一側上,硬化層39具有抗眩保護之效果,藉由提高導光板35表面之粗糙度,使外來光線產生散射,達成抗眩光之效果。硬化層39中含有直徑為0.1~5μm之顆粒,以提高反射效果。硬化層39之透光率大於80%,且霧度小於20%,以使顯示效果較佳。硬化層39因為需保護導光板35不易受損,故其表面硬度高於該導光板35之表面硬度,且為提高觸控時之滑順性,硬化層之表面能低於導光板35之表面能,硬化層39表面能小於30達因/公分,最佳為表面能小於25達因/公分。硬化層39之水滴接觸角大於85度,最佳為大於90度。硬化層39以塗布方式形成,可但並不限為浸塗、滾塗、噴塗、淋塗等方式,塗布之塗料為矽氧烷樹酯(Silicone Resin)或聚酯之塗料,若為聚酯塗料,常用丙烯酸樹酯(Acrylate Resin)並含有氟或矽氧烷之添加物以提高滑順性。硬化層39表面之硬度可測達3~6H之鉛筆硬度。在本實施方式中,硬化層39以噴塗方式形成。The hardened layer 39 is disposed on the shielding layer 38 and the light guiding plate 35, and is located on the side of the shielding layer 38 and the light guiding plate 35 away from the second bonding layer 37. The hardening layer 39 has an anti-glare protection effect, and the light guiding plate is improved. The roughness of the surface of the surface 35 causes the external light to scatter and achieve an anti-glare effect. The hardened layer 39 contains particles having a diameter of 0.1 to 5 μm to enhance the reflection effect. The light transmittance of the hardened layer 39 is greater than 80%, and the haze is less than 20% to make the display effect better. Because the hardened layer 39 is required to protect the light guide plate 35 from being damaged, the surface hardness is higher than the surface hardness of the light guide plate 35, and the surface energy of the hardened layer is lower than the surface of the light guide plate 35 in order to improve the smoothness of the touch. The surface energy of the hardened layer 39 can be less than 30 dynes/cm, and the surface energy is preferably less than 25 dynes/cm. The contact angle of the water droplets of the hardened layer 39 is greater than 85 degrees, and most preferably greater than 90 degrees. The hardened layer 39 is formed by coating, but may not be dip coating, roll coating, spray coating, shower coating, etc., and the coating material is a coating of Silicone Resin or polyester, if it is a polyester. Coatings, commonly used in acrylic resin (Acrylate Resin) and containing fluorine or helium oxide additives to improve smoothness. The hardness of the surface of the hardened layer 39 can be measured to a pencil hardness of 3 to 6H. In the present embodiment, the hardened layer 39 is formed by spraying.
使用時,光源36發出之光線從入光面351進入導光板35中進行混光成面光源,從第二出光面355與反射面359出射至第二黏接層37、觸控層33、第一黏接層中,並進一步射在顯示面板31之電子油墨層上,並照亮顯示面板31上之文字、圖案等資訊。In use, the light emitted by the light source 36 enters the light guide plate 35 from the light incident surface 351 to be mixed into a surface light source, and is emitted from the second light exit surface 355 and the reflective surface 359 to the second adhesive layer 37, the touch layer 33, and the first In an adhesive layer, it is further incident on the electronic ink layer of the display panel 31, and illuminates information such as characters and patterns on the display panel 31.
本實施方式中之顯示模組30及電子裝置100中,導光板35較觸控層33靠近使用者,因此導光板35即可起導光作用也可起保護作用,能夠保護觸控層33,避免觸控層33損傷,而無需另在靠近開口11處設置一保護觸控層33之保護蓋板,結構較簡單,降低了顯示模組30之厚度以利於輕薄化,簡化了組裝步驟,降低了製造成本。另,由於減少了保護蓋板等結構,因此也減少了黏結層之數量,降低了光損失率,提高光之有效利用率。再者,硬化層39直接塗覆在導光板35上,可省略防眩膜,避免藉由傳統之黏結方式將防眩膜貼附在導光板35而導致邊角處翹曲,減少光損失率,進一步提高光之有效利用率。In the display module 30 and the electronic device 100 of the present embodiment, the light guide plate 35 is closer to the user than the touch layer 33. Therefore, the light guide plate 35 can serve as a light guide and protect the touch layer 33. The protection of the touch layer 33 is avoided, and the protective cover of the touch protection layer 33 is not required to be disposed near the opening 11. The structure is relatively simple, the thickness of the display module 30 is reduced to facilitate thinning, and the assembly step is simplified and the assembly is simplified. Manufacturing costs. In addition, since the structure such as the protective cover is reduced, the number of the bonding layers is also reduced, the light loss rate is lowered, and the effective utilization of light is improved. Furthermore, the hardened layer 39 is directly coated on the light guide plate 35, and the anti-glare film can be omitted, thereby preventing the anti-glare film from being attached to the light guide plate 35 by a conventional bonding method, causing warpage at the corners and reducing the light loss rate. To further improve the effective utilization of light.
請參閱圖3,本新型第二實施方式中之顯示模組200與第一實施方式中之顯示模組30結構相似,其不同在於:導光板350為複數層結構,其包括複數層由不同材料形成且依次排列之第一材質層3501及第二材質層3502,第二材質層3502為較靠近硬化層390之一層。第一材質層3501之折射率大於第二材質層3502之折射率。第一材質層3501之折射率與硬化層390中之顆粒之折射率不同。第一材質層3501之厚度為0.25毫米,且其厚度大於第二材質層3502之厚度。第一材質層3501之硬度大於第二材質層3502之硬度。第一材質層3501由聚碳酸酯材料製成,第二材質層3502由亞克力材料製成。由於與硬化層39相鄰之複數層導光板350之材料為壓克力,使得更加提升硬化層39之硬度。可理解,在其他實施方式中,導光板350可為三層、四層複數層結構,僅需保證鄰近開口11之材質層之折射率低於相鄰層之折射率。硬化層390中之顆粒之折射率與導光板35中最大厚度之材質層之折射率不同。Referring to FIG. 3 , the display module 200 in the second embodiment of the present invention is similar in structure to the display module 30 in the first embodiment, except that the light guide plate 350 has a plurality of layers, and the plurality of layers are composed of different materials. The first material layer 3501 and the second material layer 3502 are formed and arranged in sequence, and the second material layer 3502 is a layer closer to the hardened layer 390. The refractive index of the first material layer 3501 is greater than the refractive index of the second material layer 3502. The refractive index of the first material layer 3501 is different from the refractive index of the particles in the hardened layer 390. The first material layer 3501 has a thickness of 0.25 mm and a thickness greater than a thickness of the second material layer 3502. The hardness of the first material layer 3501 is greater than the hardness of the second material layer 3502. The first material layer 3501 is made of a polycarbonate material, and the second material layer 3502 is made of an acrylic material. Since the material of the plurality of layers of the light guide plate 350 adjacent to the hardened layer 39 is acryl, the hardness of the hardened layer 39 is further increased. It can be understood that, in other embodiments, the light guide plate 350 can be a three-layer, four-layer multiple layer structure, and only needs to ensure that the refractive index of the material layer adjacent to the opening 11 is lower than the refractive index of the adjacent layer. The refractive index of the particles in the hardened layer 390 is different from the refractive index of the material layer of the maximum thickness in the light guide plate 35.
導光板350之複數層結構中,折射率最大之材質層之厚度具有複數層中之最大厚度,此設計使光線由導光板350中折射率最高之之材質層作為導光層進行導光,並使得光線容易散到其他材質層去(可藉由設置反射凸起實現),以避免利用折射率最低之材質進行導光時導致光線容易留在導光板內,造成光線不由出光面出光,反由邊緣漏光。經實驗證實,作為導光層之厚度至少為0.25毫米時才有明顯導光之效果,最佳為大於0.4毫米。材質最好是為聚碳酸酯、環烯烴類共聚物(COC)或環烯烴共聚物(COP)製成,聚碳酸酯材料之導光板折射率較高,環烯烴類共聚物(COC)或環烯烴共聚物(COP)材料之導光板之雙折射率低。當導光層之折射率至少為1.53時,導光效果及漏光問題可取得較好平衡。在本實施方式中,第一材質層3501之折射率為1.53。In the plurality of layers of the light guide plate 350, the thickness of the material layer having the largest refractive index has a maximum thickness in the plurality of layers, and the light is guided by the material layer having the highest refractive index of the light guide plate 350 as a light guiding layer, and The light is easily scattered to other material layers (can be realized by providing reflective bumps), so as to avoid the light being easily left in the light guide plate when the light guide material is used for the light guide material, so that the light is not emitted by the light exit surface, Light leakage at the edges. It has been experimentally confirmed that the effect of the light guiding layer is at least 0.25 mm when the thickness of the light guiding layer is at least 0.25 mm, and is preferably greater than 0.4 mm. The material is preferably made of polycarbonate, cycloolefin copolymer (COC) or cyclic olefin copolymer (COP). The refractive index of the polycarbonate material is higher, and the cyclic olefin copolymer (COC) or ring The light guide plate of the olefin copolymer (COP) material has a low birefringence. When the refractive index of the light guiding layer is at least 1.53, the light guiding effect and the light leakage problem can be well balanced. In the present embodiment, the refractive index of the first material layer 3501 is 1.53.
請參閱圖4,本新型第三實施方式中之顯示模組300與第一實施方式中之顯示模組30結構相似,其不同在於:導光板35’之入光面351’為拋光斜面,光源36’之橫截面為梯形,其包括一與入光面351’相配合之傾斜面361,傾斜面361與入光面351’相貼合。可理解,當光源36’之高度大於導光板35’之高度時,光源36’亦可部分位於觸控層一側或下方。Referring to FIG. 4 , the display module 300 in the third embodiment of the present invention is similar in structure to the display module 30 in the first embodiment, except that the light incident surface 351 ′ of the light guide plate 35 ′ is a polished slope, and the light source is used. The cross section of 36' is trapezoidal, and includes an inclined surface 361 that cooperates with the light incident surface 351'. The inclined surface 361 is in contact with the light incident surface 351'. It can be understood that when the height of the light source 36' is greater than the height of the light guide plate 35', the light source 36' may also be partially located on one side or below the touch layer.
請參閱圖5,本新型第四實施方式中之顯示模組400與第一實施方式中之顯示模組30結構相似,其不同在於:光源360之截面為橢圓面。Referring to FIG. 5 , the display module 400 in the fourth embodiment of the present invention is similar in structure to the display module 30 in the first embodiment, except that the light source 360 has an elliptical cross section.
請參閱圖6,本新型第五實施方式中之顯示模組500與第一實施方式中之顯示模組30結構相似,其不同在於:硬化層390直接塗覆在導光板354上,且省略遮蔽層。光源362之厚度等於導光板354之厚度加上硬化層390之厚度,且光源362位於導光板354與硬化層390之同一側。Referring to FIG. 6 , the display module 500 in the fifth embodiment of the present invention is similar in structure to the display module 30 in the first embodiment, except that the hardened layer 390 is directly coated on the light guide plate 354 and the shielding is omitted. Floor. The thickness of the light source 362 is equal to the thickness of the light guide plate 354 plus the thickness of the hardened layer 390, and the light source 362 is located on the same side of the light guide plate 354 and the hardened layer 390.
請參閱圖7,本新型第六實施方式中之顯示模組600與第一實施方式中之顯示模組30結構相似,其不同在於:硬化層39’直接塗覆在導光板356上,遮蔽層38’塗覆在硬化層39’上週邊上,以遮蔽光源364並反射光源364發出之光線。Referring to FIG. 7, the display module 600 of the sixth embodiment of the present invention is similar in structure to the display module 30 of the first embodiment, except that the hardened layer 39' is directly coated on the light guide plate 356, and the shielding layer is 38' is applied to the upper periphery of the hardened layer 39' to shield the light source 364 and reflect the light from the light source 364.
請參閱圖8,本新型第七實施方式中之顯示模組700與第一實施方式中之顯示模組30結構相似,其不同在於:硬化層392直接塗覆在導光板358上,且位於導光板358遠離第二出光面3585之一側,遮蔽層380塗覆在導光板358之第二出光面3585之週邊上。Referring to FIG. 8 , the display module 700 in the seventh embodiment of the present invention is similar in structure to the display module 30 in the first embodiment, except that the hardened layer 392 is directly coated on the light guide plate 358 and located at the guide. The light plate 358 is away from one side of the second light-emitting surface 3585, and the shielding layer 380 is coated on the periphery of the second light-emitting surface 3585 of the light guide plate 358.
請參閱圖9,本新型第八實施方式中之顯示模組800與第一實施方式中之顯示模組30結構相似,其不同在於:在導光板356之第一出光面353’上形成有複數間隔設置之反射凹點357’,反射凹點357’與導光板356貼合之面為反射面359’。 每反射凹點357’之直徑小於40微米。導光板356之第二出光面355’上未形成反射凸起。遮蔽層381形成在導光板356之週緣處,並填充在導光板356之週緣處之反射凹點357’中。硬化層391覆在遮蔽層381及導光板356上,並填充在導光板356上遮蔽層381未覆蓋之反射凹點357’中。由於反射凹點357’並非形成在導光板356之第二出光面355’上,因此導光板356之第二出光面355’與第二黏接層37’貼合時,不會產生氣泡。反射凹點357’形成在導光板356之第一出光面353’,第一出光面353’與遮蔽層381及硬化層391之間之組合關係並非為膠黏,而是藉由印刷、塗布等方式形成在第一出光面353’上,因此遮蔽層381及硬化層391與導光板356之間同樣不會產生氣泡。可理解,在其他實施方式中,第一出光面353’上形成反射凹點357’之同時,第二出光面355’上形成反射凸起。Referring to FIG. 9 , the display module 800 of the eighth embodiment of the present invention is similar in structure to the display module 30 of the first embodiment, except that a plurality of light-emitting surfaces 353 ′ are formed on the first light-emitting surface 353 ′ of the light guide plate 356 . The reflective concave portion 357' is disposed at intervals, and the surface where the reflective concave portion 357' is adhered to the light guide plate 356 is a reflecting surface 359'. Each reflective pit 357' has a diameter of less than 40 microns. A reflection protrusion is not formed on the second light-emitting surface 355' of the light guide plate 356. The shielding layer 381 is formed at the periphery of the light guide plate 356 and filled in the reflection pits 357' at the periphery of the light guide plate 356. The hardened layer 391 is coated on the shielding layer 381 and the light guide plate 356, and is filled in the reflective pits 357' of the light guide plate 356 which are not covered by the shielding layer 381. Since the reflection pit 357' is not formed on the second light-emitting surface 355' of the light guide plate 356, when the second light-emitting surface 355' of the light guide plate 356 is bonded to the second adhesive layer 37', no air bubbles are generated. The reflective pit 357' is formed on the first light-emitting surface 353' of the light guide plate 356, and the combination relationship between the first light-emitting surface 353' and the shielding layer 381 and the hardened layer 391 is not adhesive, but by printing, coating, etc. The method is formed on the first light-emitting surface 353', so that no air bubbles are generated between the shielding layer 381 and the hardened layer 391 and the light guide plate 356. It can be understood that, in other embodiments, the reflective embossing 357' is formed on the first illuminating surface 353', and the reflecting illuminating surface 355' is formed on the second illuminating surface 355'.
綜上所述,本新型符合新型專利要件,爰依法提出申請專利。惟,以上該者僅為本新型之較佳實施例,舉凡熟悉本案技藝之人士,在爰依本新型精神所作之等效修飾或變化,皆應涵蓋於以下之如申請專利範圍內。In summary, the new model meets the requirements of the new patent, and the patent is filed according to law. However, the above is only a preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be covered by the following claims.
30‧‧‧顯示模組 30‧‧‧Display module
31‧‧‧顯示面板 31‧‧‧ display panel
33‧‧‧觸控層 33‧‧‧ touch layer
34‧‧‧第一黏接層 34‧‧‧First bonding layer
35‧‧‧導光板 35‧‧‧Light guide
351‧‧‧入光面 351‧‧‧Into the glossy surface
353‧‧‧第一出光面 353‧‧‧The first glazing
355‧‧‧第二出光面 355‧‧‧second glazing
36‧‧‧光源 36‧‧‧Light source
357‧‧‧反射凸起 357‧‧‧Reflecting bulges
359‧‧‧反射面 359‧‧‧reflecting surface
37‧‧‧第二黏接層 37‧‧‧Second adhesive layer
38‧‧‧遮蔽層 38‧‧‧shading layer
39‧‧‧硬化層 39‧‧‧ hardened layer
Claims (26)
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CN201320639147.6U CN203706159U (en) | 2013-10-17 | 2013-10-17 | Reflection type display module and electronic device adopting same |
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TWM504279U true TWM504279U (en) | 2015-07-01 |
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TW102219979U TWM504279U (en) | 2013-10-17 | 2013-10-25 | Reflective display module and electronic device using the same |
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TW (1) | TWM504279U (en) |
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TWI743572B (en) * | 2019-10-16 | 2021-10-21 | 元太科技工業股份有限公司 | Reflective display |
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CN104571658B (en) * | 2013-10-17 | 2020-03-17 | 鸿富锦精密工业(深圳)有限公司 | Reflective display module and electronic device using same |
CN104315431B (en) * | 2014-10-28 | 2018-08-03 | 欧普照明股份有限公司 | A kind of illumination module and the illuminator with the illumination module |
US10139545B2 (en) | 2015-04-02 | 2018-11-27 | E Ink Holdings Inc. | Front light display device and manufacturing thereof |
TWI581023B (en) * | 2015-04-02 | 2017-05-01 | 元太科技工業股份有限公司 | Front light display device and manufacturing thereof |
CN105551389A (en) | 2016-03-07 | 2016-05-04 | 京东方科技集团股份有限公司 | Display panel and display device |
CN107768415B (en) * | 2017-10-30 | 2024-03-08 | 京东方科技集团股份有限公司 | Flexible display device, display apparatus and manufacturing method |
TWI746103B (en) * | 2020-08-04 | 2021-11-11 | 茂林光電科技股份有限公司 | Front light module and reflective display device |
-
2013
- 2013-10-17 CN CN201320639147.6U patent/CN203706159U/en not_active Expired - Lifetime
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TWI743572B (en) * | 2019-10-16 | 2021-10-21 | 元太科技工業股份有限公司 | Reflective display |
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