TW201423248A - Electronic paper module and display device using the same - Google Patents
Electronic paper module and display device using the same Download PDFInfo
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Description
本發明涉及一種顯示裝置，特別涉及一種雙穩態的電子紙顯示裝置及其電子紙顯示幕模組。The invention relates to a display device, in particular to a bistable electronic paper display device and an electronic paper display screen module thereof.
由於具有低功耗、可彎曲性、厚度薄等優點，電子紙顯示器被廣泛應用在手機、電子書、電腦、個人數位助理等電子產品中作為顯示幕幕使用。電子紙顯示器的結構通常包括上基板、下基板、電泳顯示媒質層，上基板下表面設有公共銦錫氧化物（Indium tin oxide, ITO）電極，下基板上表面設有複數薄膜電晶體(Thin Film Transistor, TFT)圖元電極，電泳顯示媒質層緊密貼合在公共ITO電極和TFT圖元電極之間。公共ITO電極和TFT圖元電極通過一電路層連接至電壓源，通過該電壓源的驅動，在公共ITO電極和TFT圖元電極之間形成一電勢差，從而控制電泳顯示媒質層進行顯示。Due to its low power consumption, flexibility, and thin thickness, electronic paper displays are widely used as display screens in electronic products such as mobile phones, e-books, computers, and personal digital assistants. The structure of the electronic paper display generally includes an upper substrate, a lower substrate, and an electrophoretic display medium layer. The lower surface of the upper substrate is provided with a common indium tin oxide (ITO) electrode, and the upper surface of the lower substrate is provided with a plurality of thin film transistors (Thin Film Transistor (TFT) element electrode, electrophoretic display medium layer is closely attached between the common ITO electrode and the TFT element electrode. The common ITO electrode and the TFT primitive electrode are connected to a voltage source through a circuit layer, and a potential difference is formed between the common ITO electrode and the TFT element electrode by driving the voltage source, thereby controlling the electrophoretic display medium layer to perform display.
現有的公共ITO電極以及TFT圖元電極與電路層的連接方式主要有兩種：一種為在電泳顯示媒質層上設置複數通孔，以導電銀膠填充所述通孔，從而將公共ITO電極電連接於其中一個TFT圖元電極上，該複數TFT圖元電極再與電路層連接，從而將公共ITO電極以及TFT圖元電極電連接至所述電壓源；另一種方式為在電泳顯示媒質層的側邊設置導電銀膠將公共ITO電極電連接於一個TFT圖元電極上，該複數TFT圖元電極再與電路層電連接，從而將公共ITO電極以及TFT圖元電極導出至與外部電壓源電連接。上述兩種方式均需要使用導電銀膠將公共ITO電極先電連接於TFT圖元電極上，再通過所述TFT圖元電極將公共ITO電極間接連接至電路層。這種間接連接方式不夠穩固，且採用導電銀膠觸點的電連接方式在遇到冷熱衝擊時，易產生接觸不良現象。There are two main ways of connecting the common ITO electrode and the TFT element electrode to the circuit layer: one is to provide a plurality of through holes on the electrophoretic display medium layer, and the through holes are filled with conductive silver glue, thereby electrically oxidizing the common ITO electrodes. Connected to one of the TFT pixel electrodes, the plurality of TFT pixel electrodes are further connected to the circuit layer to electrically connect the common ITO electrode and the TFT primitive electrode to the voltage source; and the other is to display the medium layer in the electrophoretic display layer. Conductive silver glue is disposed on the side to electrically connect the common ITO electrode to a TFT element electrode, and the plurality of TFT element electrodes are electrically connected to the circuit layer, thereby discharging the common ITO electrode and the TFT element electrode to an external voltage source. connection. In the above two methods, the common ITO electrode is first electrically connected to the TFT element electrode by using a conductive silver paste, and the common ITO electrode is indirectly connected to the circuit layer through the TFT element electrode. The indirect connection method is not stable enough, and the electrical connection method using the conductive silver glue contacts is prone to contact failure when encountering thermal shock.
鑒於此，有必要提供一種製造工藝簡單且輕薄的電子紙裝置。In view of this, it is necessary to provide an electronic paper device which is simple in manufacturing process and thin and light.
一種電子紙顯示裝置，包括殼體以及容納與所述殼體內的電子紙顯示幕模組，電源模組以及驅動電路板，所述電子紙顯示幕模組包括下基板、電泳顯示媒質層和上基板，該電泳顯示媒質層設置於上基板和下基板之間，該電子紙顯示幕模組還包括一導出電路板，下基板上靠近電泳顯示媒質層的表面上的設有圖元電極層，上基板上靠近電泳顯示媒質層的表面上的設有公共電極層，所述公共電極層相對電泳顯示媒質層的週邊延伸出一第一突出部，所述圖元電極層相對電泳顯示媒質層的週邊延伸出一第二突出部，所述第一突出部和第二突出部分別電連接於所述導出電路板，該導出電路板用於將所述電子紙顯示幕模組與驅動電路板電連接。An electronic paper display device includes a casing and an electronic paper display screen module, a power module and a driving circuit board housed in the casing, the electronic paper display screen module comprising a lower substrate, an electrophoretic display medium layer and an upper a substrate, the electrophoretic display medium layer is disposed between the upper substrate and the lower substrate, the electronic paper display screen module further includes a lead-out circuit board, and the electrode layer provided on the surface of the lower substrate adjacent to the electrophoretic display medium layer is disposed a common electrode layer is disposed on the surface of the upper substrate adjacent to the electrophoretic display medium layer, and the common electrode layer extends a first protrusion relative to a periphery of the electrophoretic display medium layer, wherein the element electrode layer is opposite to the electrophoretic display medium layer Extending a second protruding portion, the first protruding portion and the second protruding portion are electrically connected to the lead-out circuit board, respectively, the lead-out circuit board is configured to electrically charge the electronic paper display screen module and the driving circuit board connection.
一種電子紙顯示幕模組，包括下基板、電泳顯示媒質層和上基板，該電泳顯示媒質層設置於上基板和下基板之間，該電子紙顯示幕模組還包括一導出電路板，下基板上靠近電泳顯示媒質層的表面上的設有圖元電極層，上基板上靠近電泳顯示媒質層的表面上的設有公共電極層，所述公共電極層相對電泳顯示媒質層的週邊延伸出一第一突出部，所述圖元電極層相對電泳顯示媒質層的週邊延伸出一第二突出部，所述第一突出部和第二突出部分別電連接於所述導出電路板，該導出電路板用於將所述電子紙顯示幕模組與驅動電路板電連接。An electronic paper display screen module comprising a lower substrate, an electrophoretic display medium layer and an upper substrate, wherein the electrophoretic display medium layer is disposed between the upper substrate and the lower substrate, the electronic paper display screen module further comprising an export circuit board, the lower a pixel electrode layer is disposed on the surface of the substrate adjacent to the electrophoretic display medium layer, and a common electrode layer is disposed on the surface of the upper substrate adjacent to the electrophoretic display medium layer, and the common electrode layer extends from the periphery of the electrophoretic display medium layer a first protruding portion, the primitive electrode layer extends a second protruding portion with respect to a periphery of the electrophoretic display medium layer, and the first protruding portion and the second protruding portion are electrically connected to the lead-out circuit board, respectively. The circuit board is used to electrically connect the electronic paper display screen module to the driving circuit board.
本發明中提供的電子紙顯示裝置和電子紙顯示幕模組的公共電極層通過第一突出部直接電連接於導出電路板上，圖元電極層通過第二突出部直接電連接於導出電路版上，連接結構穩固。且導出電路板位於電子紙顯示幕模組的外側，可以方便的與驅動電路板電連接。The common electrode layer of the electronic paper display device and the electronic paper display screen module provided by the present invention is directly electrically connected to the lead-out circuit board through the first protruding portion, and the element electrode layer is directly electrically connected to the derived circuit board through the second protruding portion. Upper, the connection structure is stable. And the output circuit board is located outside the electronic paper display screen module, and can be electrically connected to the driving circuit board conveniently.
下面將結合附圖，對本發明作進一步的詳細說明。The invention will be further described in detail below with reference to the accompanying drawings.
請參圖1，電子紙顯示裝置100為反射式電泳顯示裝置，其包括殼體101以及容納於所述殼體101內的電子紙顯示幕模組10、電源模組（圖未示出）以及驅動電子紙進行顯示的驅動電路板（圖未示出）等。Referring to FIG. 1 , the electronic paper display device 100 is a reflective electrophoretic display device, and includes a housing 101 , an electronic paper display screen module 10 housed in the housing 101 , a power module (not shown), and A drive circuit board (not shown) that drives electronic paper for display, and the like.
請一併參閱圖2和圖3，所述電子紙顯示幕模組10包括下基板20、電泳顯示媒質層30、上基板40。電泳顯示媒質層30置於下基板20和上基板40之間。所述上基板40位於使用者的觀察面的一側。Referring to FIG. 2 and FIG. 3 together, the electronic paper display screen module 10 includes a lower substrate 20, an electrophoretic display medium layer 30, and an upper substrate 40. The electrophoretic display medium layer 30 is placed between the lower substrate 20 and the upper substrate 40. The upper substrate 40 is located on one side of the viewing surface of the user.
上基板40上靠近電泳顯示媒質層30的表面上設有公共電極層42，在本實施方式中，公共電極層42為整面的ITO電極。該公共電極層42的材質可為銦錫氧化物、鋁鋅氧化物或鎘錫氧化物。上基板40可為玻璃基板、或高透光率的透明塑膠基板。本實施方式選用的上基板40為聚甲基丙烯酸甲酯（PMMA）材料所製成。所述上基板40上遠離電泳顯示媒質層30的表面上還設有保護層（圖為示出），所述保護層為一層高透光率的透明薄膜。A common electrode layer 42 is provided on the surface of the upper substrate 40 close to the electrophoretic display medium layer 30. In the present embodiment, the common electrode layer 42 is a full-surface ITO electrode. The material of the common electrode layer 42 may be indium tin oxide, aluminum zinc oxide or cadmium tin oxide. The upper substrate 40 may be a glass substrate or a transparent plastic substrate having a high light transmittance. The upper substrate 40 selected in the present embodiment is made of polymethyl methacrylate (PMMA) material. A protective layer (shown) is further disposed on the surface of the upper substrate 40 away from the electrophoretic display medium layer 30, and the protective layer is a transparent film with high transmittance.
下基板20上靠近電泳顯示媒質層30的表面上設有圖元電極層22，該圖元電極層22包括複數圖元電極201、電極電路層202以及設置於圖元電極201和電極電路層202之間的絕緣層203。所述圖元電極層22可為薄膜電晶體(Thin Film Transistor, TFT)圖元電極層，通過採取印刷蝕刻的方法在基板上依次印刷所述電極電路層202、絕緣層203以及複數圖元電極201，所述圖元電極201通過絕緣層203上蝕刻的導通通道204與電極電路層202電連接，所述導通通道204內可填充異方性導電膠，導電銀膠等導電介質，從而將圖元電極201與電極電路層202電連接。下基板20可為玻璃基板、塑膠基板、電路板或柔性電路板。A primitive electrode layer 22 is disposed on the surface of the lower substrate 20 adjacent to the electrophoretic display medium layer 30. The primitive electrode layer 22 includes a plurality of primitive electrodes 201, an electrode circuit layer 202, and a photo electrode layer 201 and an electrode circuit layer 202. The insulating layer 203 is between. The element electrode layer 22 may be a Thin Film Transistor (TFT) element electrode layer, and the electrode circuit layer 202, the insulating layer 203, and the plurality of element electrodes are sequentially printed on the substrate by a method of printing etching. 201, the pixel electrode 201 is electrically connected to the electrode circuit layer 202 through the conductive channel 204 etched on the insulating layer 203, and the conductive channel 204 can be filled with an anisotropic conductive adhesive, a conductive medium such as a conductive silver paste, thereby The element electrode 201 is electrically connected to the electrode circuit layer 202. The lower substrate 20 may be a glass substrate, a plastic substrate, a circuit board, or a flexible circuit board.
電泳顯示媒質層30通過黏合劑黏合在公共電極層42與圖元電極層22之間。電泳顯示媒質層30是雙穩態電泳顯示媒質，在本實施方式中採用微膠囊式電泳顯示媒質。電泳顯示媒質層30包括複數微膠囊302，該微膠囊的形狀可以為球體、類球體、管狀或者橢圓形狀等。The electrophoretic display medium layer 30 is bonded between the common electrode layer 42 and the primitive electrode layer 22 by an adhesive. The electrophoretic display medium layer 30 is a bistable electrophoretic display medium, and in the present embodiment, a microcapsule type electrophoretic display medium is used. The electrophoretic display medium layer 30 includes a plurality of microcapsules 302, which may be in the form of spheres, spheroids, tubes or elliptical shapes, and the like.
為微膠囊302的內部結構圖。該微膠囊302容置有介電溶液（dielectric solution）、以及封裝在微膠囊302內的具有不同的電學和光學特性的第一電泳粒子與第二電泳粒子。在本實施方式中，第一電泳粒子為白色的帶正電的粒子，第二電泳粒子為黑色的帶負電的粒子。第一電泳粒子與第二電泳粒子根據加在公共電極層42與圖元電極層22之間的電壓差而在微膠囊302內發生移動，通過對施加在公共電極層42與圖元電極層22之間的電壓差的正負以及大小可以控制第一電泳粒子以及第二電泳粒子移動方向和移動粒子的多少，進而控制電子紙顯示裝置100顯示的內容。It is an internal structure diagram of the microcapsule 302. The microcapsules 302 are housed with a dielectric solution, and first electrophoretic particles and second electrophoretic particles having different electrical and optical properties encapsulated within the microcapsules 302. In the present embodiment, the first electrophoretic particles are white positively charged particles, and the second electrophoretic particles are black negatively charged particles. The first electrophoretic particles and the second electrophoretic particles move in the microcapsules 302 according to a voltage difference applied between the common electrode layer 42 and the primitive electrode layer 22, and are applied to the common electrode layer 42 and the primitive electrode layer 22 by the pair. The positive and negative voltages and the magnitude of the voltage difference between the first electrophoretic particles and the second electrophoretic particles can be controlled to control the content displayed by the electronic paper display device 100.
所述公共電極層42相對電泳顯示媒質層30的週邊延伸，向外突出有至少一第一突出部421，所述圖元電極層22相對電泳顯示媒質層30的週邊突出有至少一第二突出部221，在本實施方式中所述圖元電極層22的電極電路層202相對電泳顯示媒質層30的週邊突出一第二突出部221，所述第一突出部421和第二突出部221分別電連接於一導出電路板50，該導出電路板50用於與容納於所述殼體101內的驅動電路板電連接，所述驅動電路板控制施加在所述公共電極層42和圖元電極層22之間的電壓。在本實施方式中，所述導出電路板50包括分別設置於導出電路板50相背的兩側面的第一導出電極51和第二導出電極52，公共電極層42的第一突出部421電連接於該第一導出電極51，圖元電極層22的第二突出部221電連接於該第二導出電極52。所述第一突出部421與第一導出電極51之間以及第二突出部221與第二導出電極52之間均可通過異方性導電膠或者導電銀膠等導電介質53電連接。The common electrode layer 42 extends toward the periphery of the electrophoretic display medium layer 30, and at least one first protruding portion 421 protrudes outwardly. The primitive electrode layer 22 protrudes from the periphery of the electrophoretic display medium layer 30 by at least one second protrusion. In the embodiment, the electrode circuit layer 202 of the primitive electrode layer 22 protrudes from the periphery of the electrophoretic display medium layer 30 by a second protrusion 221, and the first protrusion 421 and the second protrusion 221 respectively Electrically connected to a lead-out circuit board 50 for electrically connecting to a drive circuit board housed in the housing 101, the drive circuit board controlling application to the common electrode layer 42 and the picture element electrode The voltage between layers 22. In the present embodiment, the lead-out circuit board 50 includes a first lead-out electrode 51 and a second lead-out electrode 52 respectively disposed on opposite sides of the lead-out board 50, and the first protrusions 421 of the common electrode layer 42 are electrically connected. The second protruding portion 221 of the primitive electrode layer 22 is electrically connected to the second lead-out electrode 52 at the first lead-out electrode 51. The first protruding portion 421 and the first lead-out electrode 51 and between the second protruding portion 221 and the second lead-out electrode 52 may be electrically connected by a conductive medium 53 such as an anisotropic conductive paste or a conductive silver paste.
在本實施方式中，所述上基板40和下基板20的尺寸大於電泳顯示媒質層30的尺寸，密封劑60填充於上基板40和下基板20之間的電泳顯示媒質層30的週邊空隙。導出電路板50穿出所述密封劑60位於電子紙顯示幕模組10的外側，從而方便的與驅動電路板電連接。所述密封劑60可以採用環氧樹脂、矽樹脂、丙烯樹脂等，還可以採用光硬化型、熱硬化型或者兩液混合硬化型樹脂。In the present embodiment, the size of the upper substrate 40 and the lower substrate 20 is larger than the size of the electrophoretic display medium layer 30, and the sealant 60 is filled in the peripheral space of the electrophoretic display medium layer 30 between the upper substrate 40 and the lower substrate 20. The lead-out circuit board 50 is disposed outside the electronic paper display screen module 10 so as to be electrically connected to the driving circuit board. The sealant 60 may be an epoxy resin, a enamel resin, an acrylic resin or the like, or a photocurable type, a thermosetting type or a two-liquid type hardening type resin.
公共電極層42通過第一突出部421直接電連接於導出電路板50上，圖元電極層22通過第二突出部221直接電連接於導出電路板50上，連接結構穩固。且導出電路板50位於電子紙顯示幕模組10的外側，可以方便的與驅動電路板電連接。The common electrode layer 42 is directly electrically connected to the lead-out circuit board 50 through the first protruding portion 421, and the pixel electrode layer 22 is directly electrically connected to the lead-out circuit board 50 through the second protruding portion 221, and the connection structure is stabilized. And the lead-out circuit board 50 is located outside the electronic paper display screen module 10, and can be electrically connected to the driving circuit board conveniently.
本技術領域的普通技術人員應當認識到，以上的實施方式僅用來說明本發明，而並非作為對本發明的限定，只要在發明的實質精神範圍之內，對以上實施例所作的適當改變和變化均不脫離本發明的專利保護範圍之內。Those skilled in the art will recognize that the above-described embodiments are merely illustrative of the invention and are not to be construed as limiting the scope of the invention. Neither is it within the scope of the patent protection of the present invention.
100．．．電子紙顯示裝置100. . . Electronic paper display device
101．．．殼體101. . . case
10．．．電子紙顯示幕模組10. . . Electronic paper display screen module
20．．．下基板20. . . Lower substrate
22．．．圖元電極層twenty two. . . Element electrode layer
201．．．圖元電極201. . . Element electrode
202．．．電極電路層202. . . Electrode circuit layer
203．．．絕緣層203. . . Insulation
204．．．導通通道204. . . Conduction channel
221．．．第二突出部221. . . Second protrusion
30．．．電泳顯示媒質層30. . . Electrophoretic display medium layer
302．．．微膠囊302. . . Microcapsules
40．．．上基板40. . . Upper substrate
42．．．公共電極層42. . . Common electrode layer
421．．．第一突出部421. . . First protrusion
50．．．導出電路板50. . . Export board
51．．．第一導出電極51. . . First derived electrode
52．．．第二導出電極52. . . Second derived electrode
53．．．導電介質53. . . Conductive medium
60．．．密封劑60. . . Sealants
圖1為本發明的電子紙裝置的結構示意圖。1 is a schematic view showing the structure of an electronic paper device of the present invention.
圖2為圖1中電子紙裝置的電子紙顯示幕模組的結構示意圖。2 is a schematic structural view of an electronic paper display screen module of the electronic paper device of FIG. 1.
圖3為圖2中電子紙顯示幕模組的橫截面結構示意圖。3 is a schematic cross-sectional structural view of the electronic paper display screen module of FIG. 2.
20．．．下基板20. . . Lower substrate
22．．．圖元電極層twenty two. . . Element electrode layer
201．．．圖元電極201. . . Element electrode
202．．．電極電路層202. . . Electrode circuit layer
203．．．絕緣層203. . . Insulation
204．．．導通通道204. . . Conduction channel
221．．．第二突出部221. . . Second protrusion
302．．．微膠囊302. . . Microcapsules
40．．．上基板40. . . Upper substrate
42．．．公共電極層42. . . Common electrode layer
421．．．第一突出部421. . . First protrusion
50．．．導出電路板50. . . Export board
51．．．第一導出電極51. . . First derived electrode
52．．．第二導出電極52. . . Second derived electrode
53．．．導電介質53. . . Conductive medium
60．．．密封劑60. . . Sealants
Claims (13)
The electronic paper display screen module according to claim 9, wherein the peripheral space between the upper substrate and the lower substrate is filled with a sealant, and the lead circuit board passes through the sealant. Located on the outside of the electronic paper display module.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210534154.XA CN103869572A (en) | 2012-12-12 | 2012-12-12 | Electronic paper display device and electronic paper display-screen module for same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201423248A true TW201423248A (en) | 2014-06-16 |
Family
ID=50908266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW101149085A TW201423248A (en) | 2012-12-12 | 2012-12-21 | Electronic paper module and display device using the same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103869572A (en) |
| TW (1) | TW201423248A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107703693A (en) * | 2017-10-27 | 2018-02-16 | 京东方科技集团股份有限公司 | A kind of electronic-paper display screen, display device and bonding method |
| CN110333636A (en) * | 2019-05-09 | 2019-10-15 | 重庆京东方智慧电子***有限公司 | A kind of electronic paper display mould group and preparation method thereof, display device of electronic paper |
| KR20210128761A (en) * | 2020-04-17 | 2021-10-27 | 주식회사 솔루엠 | Display device |
| CN113568237A (en) * | 2021-08-07 | 2021-10-29 | 广东志慧芯屏科技有限公司 | Electronic paper module and process |
| CN218497310U (en) * | 2022-10-09 | 2023-02-17 | 汉朔科技股份有限公司 | Electronic paper screen with holding hole in display area |
-
2012
- 2012-12-12 CN CN201210534154.XA patent/CN103869572A/en active Pending
- 2012-12-21 TW TW101149085A patent/TW201423248A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN103869572A (en) | 2014-06-18 |
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