TWM561855U - An optical in-display LED panel - Google Patents
An optical in-display LED panel Download PDFInfo
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本創作係關於一種發光二極體面板，其係特別關於一種具有光學指紋辨識的發光二極體面板，且光學指紋辨識更整合在發光二極體面板內。The present invention relates to a light-emitting diode panel, in particular to a light-emitting diode panel with optical fingerprint recognition, and optical fingerprint recognition is more integrated in the light-emitting diode panel.
目前發展中的指紋辨識技術主要包含半導體式、光學式及超聲波式，其中則係以半導體式與光學式為較成熟的技術，也是現行主流的指紋辨識技術。其中，半導體式指紋感測器的原理係將高密度的電容感測器，或是壓力感測器等微型化感測器，整合於一晶片中，在指紋按壓晶片表面時，內部微型電容感測器會根據指紋波峰與波谷聚集而產生的不同電荷量(或是溫差)，形成指紋影像。光學式指紋感測器則係利用光源、光學元件、光電感應器共同組成一套指紋採集設備，利用手指按壓，指紋的波峰與波谷對於全反射的吸收與破壞，得到一枚指紋影像，再將影像擷取與輸出以達到判別的效果。由於光學式的採集方式是非接觸晶片本身，也就是指紋按壓處是由壓克力或是玻璃等光學元件所構成，故光學式最大的優勢就是價格低廉且耐用。At present, the fingerprint identification technology in development mainly includes semiconductor type, optical type and ultrasonic type, among which the semiconductor type and the optical type are mature technologies, and the current mainstream fingerprint identification technology. Among them, the principle of the semiconductor fingerprint sensor is to integrate a high-density capacitive sensor or a miniaturized sensor such as a pressure sensor into a wafer, and the internal micro-capacitance is sensed when the fingerprint presses the surface of the wafer. The detector will form a fingerprint image based on the different charge amounts (or temperature differences) generated by the aggregation of the fingerprint peaks and troughs. The optical fingerprint sensor uses a light source, an optical component, and a photoelectric sensor to form a set of fingerprint collection devices. With finger pressing, the peaks and troughs of the fingerprint absorb and destroy the total reflection, and a fingerprint image is obtained. Image capture and output to achieve discriminating effects. Since the optical acquisition method is the non-contact wafer itself, that is, the fingerprint pressing portion is composed of optical components such as acrylic or glass, the optical advantage is that the price is low and durable.
而目前的行動裝置上通常係將指紋辨識獨立設置，其因在於無法整合顯示工作與指紋辨識工作同時進行，故將指紋辨識獨立一區域設置，部分業者設置於行動裝置背蓋或側邊，如此的設計由於不太符合人體工學，經常造成誤觸或難以感應的窘境，因此有部分業者係將指紋辨識設置於行動裝置觸控螢幕的非觸控區域，而缺點在於若在黑暗處操行動裝置之指紋辨識功能時，該指紋辨識區域無照明顯示則相當不便利。In the current mobile device, the fingerprint identification is usually set independently. Because the integrated display work and the fingerprint identification work cannot be performed at the same time, the fingerprint identification is independently set in an area, and some operators are set on the back cover or the side of the mobile device. Because the design is not ergonomic and often causes misunderstanding or difficulty in sensing, some operators set fingerprint recognition on the non-touch area of the touch screen of the mobile device. The disadvantage is that if the action is in the dark. When the fingerprint recognition function of the device is used, it is quite inconvenient that the fingerprint identification area has no illumination display.
隨著發光二極體面板的技術發展漸趨成熟，本創作則利用發光二極體本身可發光的特性，並同時結合光學式指紋辨識的技術，以提供一種屏內光學指紋辨識的發光二極體面板，其係可內嵌在發光二極體面板，且藉由獨特的光路徑設計以大幅降低環境光源與強光源在指紋辨識時的干擾。With the development of the technology of the light-emitting diode panel, the creation utilizes the characteristics of the light-emitting diode itself to emit light, and at the same time combines the technology of optical fingerprint identification to provide a light-emitting diode for optical fingerprint recognition in the screen. The body panel can be embedded in the LED panel, and the unique light path design can greatly reduce the interference of the ambient light source and the strong light source in fingerprint recognition.
本創作之主要目的乃在於將指向性光線的全反射光路徑設計於面板內，以提供指紋辨識時所需要的光訊號，俾以在任何光線干擾的環境下，均可有效地進行指紋的辨識。The main purpose of this creation is to design the total reflection light path of the directional light in the panel to provide the optical signal needed for fingerprint identification, and to effectively identify the fingerprint in any light interference environment. .
本創作之次要目的乃在於將光感測元件整合於發光二極體基板上，藉由發光二極體以提供指向性光線，故無需額外設置光源。The secondary purpose of this creation is to integrate the light sensing component on the light-emitting diode substrate, and to provide directional light by the light-emitting diode, so that no additional light source is required.
本創作之另一目的乃在於使用光電二極體做為光感測元件，並將之整合於發光二極體基板內。Another object of the present invention is to use a photodiode as a light sensing element and integrate it into a light emitting diode substrate.
本創作之再一目的乃在於提供一種光學指紋辨識發光二極體面板，大部分的面板面積用以做為指紋的指紋接收區域，同時搭配將光感測元件設置在發光二極體基板的遮光層區域，故可實現全屏顯示的指紋辨識面板。A further object of the present invention is to provide an optical fingerprint recognition LED panel, most of which is used as a fingerprint receiving area of a fingerprint, and at the same time, a light shielding component is disposed on the light emitting diode substrate. The layer area, so the fingerprint recognition panel for full screen display can be realized.
為達成上述目的及功效，本創作揭露一種屏內光學指紋辨識的發光二極體面板，其係具有主顯示區域與次顯示區域，本創作的屏內光學指紋辨識的發光二極體面板包含一發光二極體基板、一導光基板及一光感測元件，發光二極體基板具有複數發光二極體，且至少一發光二極體用以提供一指向性光線，而導光基板的指紋接收區域用以提供手指進行有效的按壓，來自光源的指向性光線自訊號導入區域進入至導光基板並進行全反射並產生光學訊號，終自訊號導出區域離開導光基板，並進入至光感測元件內以將光學訊號轉換為電氣訊號以完成手指的指紋特徵辨識。In order to achieve the above objects and effects, the present invention discloses a light-emitting diode panel for in-screen optical fingerprint recognition, which has a main display area and a secondary display area, and the light-emitting diode panel of the in-screen optical fingerprint recognition of the present invention comprises a a light-emitting diode substrate, a light-guiding substrate and a light-sensing component, the light-emitting diode substrate has a plurality of light-emitting diodes, and at least one light-emitting diode is used to provide a directional light, and the fingerprint of the light-guiding substrate The receiving area is used for providing effective pressing of the finger, and the directional light from the light source enters the light guiding substrate from the signal introduction area and is totally reflected and generates an optical signal, and finally exits the light guiding substrate from the signal lead-out area and enters the light sensation. The optical component is converted into an electrical signal within the measuring component to complete fingerprint identification of the finger.
由於本創作係將具有特定指向性的光線做為指紋辨識的光學訊號光源，並藉由全反射的方式以確保光學訊號的傳遞有效性，故可達到全屏顯示的屏內指紋辨識功效，同時藉由將光感測元件實質地對應設置在發光二極體基板的遮光層區域，因此不但不影響發光二極體面板的原始設計，更可維持發光二極體面板薄化的特色。Since the creation system uses light with specific directivity as the optical signal source for fingerprint identification, and by means of total reflection to ensure the transparency of the transmission of the optical signal, the in-screen fingerprint recognition function of the full screen display can be achieved, and at the same time Since the light sensing element is substantially correspondingly disposed in the light shielding layer region of the light emitting diode substrate, the original design of the light emitting diode panel is not affected, and the thinning of the light emitting diode panel can be maintained.
本創作所採用之技術手段及其構造，茲繪圖就本創作之較佳實施例詳加說明其特徵與功能如下，俾利完全瞭解。The technical means and its construction adopted in this creation are described in detail in the preferred embodiment of the present creation, and the features and functions are as follows.
首先請參照第1圖所示，其係為本創作揭露一種屏內光學指紋辨識的發光二極體面板的結構截面示意圖。屏內光學指紋辨識的發光二極體面板1a係具有主顯示區域32與次顯示區域34，本創作的屏內光學指紋辨識的發光二極體面板1a包含一發光二極體基板14、一導光基板12及一光感測元件16。First, please refer to FIG. 1 , which is a schematic cross-sectional view of a light-emitting diode panel for in-screen optical fingerprint recognition. The light-emitting diode panel 1a of the in-screen optical fingerprint identification has a main display area 32 and a sub-display area 34. The in-screen optical fingerprint identification LED panel 1a of the present invention comprises a light-emitting diode substrate 14 and a guide. The light substrate 12 and a light sensing element 16 are provided.
發光二極體基板14具有複數個發光二極體22、24，且其中至少一個發光二極體22係用以提供指向性光線(虛線所示)，其餘的發光二極體24則係用以提供屏內光學指紋辨識的發光二極體面板1a顯示時所需的光線，因此，在本創作揭露的屏內光學指紋辨識的發光二極體面板1a無須額外設置光源，不過為避免提供足夠的顯示光線予主顯示區域32，同時也在不影響顯示品質的前提下，用以提供指向性光線(虛線所示)的發光二極體22較佳的設置位置係實質地對應次顯示區域34。同時，本創作為避免光學式判斷的指紋辨識受到環境光線或強光線的影響，因此用以做為指紋辨識的光線係具有特定指向性的光線，俾使指向性光線(虛線所示)得以特定的角度進入至導光基板12，藉以與來自環境的光線或強光線有所區隔，可確保指紋辨識的準確度。The light-emitting diode substrate 14 has a plurality of light-emitting diodes 22, 24, and at least one of the light-emitting diodes 22 is used to provide directional light (shown by a broken line), and the remaining light-emitting diodes 24 are used. The light-emitting diode panel 1a for providing on-screen optical fingerprint recognition displays light required for display. Therefore, the light-emitting diode panel 1a for optical fingerprint recognition in the screen disclosed in the present invention does not need to additionally provide a light source, but to avoid providing sufficient light. The light is applied to the main display area 32, and the preferred arrangement position of the light-emitting diodes 22 for providing directional light (shown by dashed lines) substantially corresponds to the secondary display area 34, without affecting the display quality. At the same time, in order to avoid the influence of ambient light or strong light on the fingerprint recognition of optical judgment, the light used for fingerprint recognition has specific directivity light, so that the directional light (shown by the dotted line) is specified. The angle of the light enters the light guide substrate 12 to distinguish it from light or strong light from the environment, thereby ensuring the accuracy of fingerprint recognition.
另外，上述的發光二極體面板14可為主動式有機發光二極體基板、被動式有機發光二極體基板、毫米發光二極體基板或微發光二極體基板，當然，設置於其上的發光二極體22、24則可對應地為主動式有機發光二極體、被動式有機發光二極體、毫米發光二極體或微發光二極體。In addition, the above-mentioned light emitting diode panel 14 may be an active organic light emitting diode substrate, a passive organic light emitting diode substrate, a millimeter light emitting diode substrate or a micro light emitting diode substrate, of course, disposed thereon. The light-emitting diodes 22 and 24 can be correspondingly an active organic light-emitting diode, a passive organic light-emitting diode, a millimeter light-emitting diode or a micro light-emitting diode.
導光基板12則具有指紋接收區域122、訊號導入區域124及訊號導出區域126，其中的指紋接收區域122可包含了發光二極體面板1a整個的顯示區域或發光二極體面板1a局部的顯示區域，換言之，指紋接收區域122可對應至發光二極體面板1a的主顯示區域32及至少局部或全部的次顯示區域34、或指紋接收區域122可對應至發光二極體面板1a整個的主顯示區域32、或指紋接收區域122僅對應至發光二極體面板1a的局部的主顯示區域32，其中，主顯示區域32係用以顯示重要的資訊，例如但不限於主功能選項、對話視窗、數字按鍵顯示區域…等等，而次顯示區域34則是用以顯示較為次要的資訊，例如但不限於時間、日期、溫度、或甚至為未顯示出任何資訊僅提供背景畫面的區域或隱藏在畫面外區域如邊框(dead band)，以本實施態樣為例，指紋接收區域122係包含了全部的主顯示區32域及局部的次顯示區域34。而導光基板12內的訊號導入區域124及訊號導出區域126可為鏡面、稜鏡薄膜、光柵或光纖的形式。The light guide substrate 12 has a fingerprint receiving area 122, a signal introduction area 124 and a signal lead-out area 126, wherein the fingerprint receiving area 122 can include the entire display area of the LED panel 1a or a partial display of the LED panel 1a. The area, in other words, the fingerprint receiving area 122 may correspond to the main display area 32 of the LED panel 1a and at least some or all of the sub-display area 34, or the fingerprint receiving area 122 may correspond to the entire main body of the LED panel 1a. The display area 32 or the fingerprint receiving area 122 corresponds only to the main display area 32 of the partial portion of the LED panel 1a, wherein the main display area 32 is used to display important information such as, but not limited to, main function options, dialog windows. , the numeric button display area, etc., and the secondary display area 34 is used to display less important information, such as, but not limited to, time, date, temperature, or even an area that does not display any information and only provides a background image or The image is removed from the outside of the screen, such as a dead band. In this embodiment, the fingerprint receiving area 122 includes all the main display areas 32. And a partial sub-display area 34. The signal introduction area 124 and the signal lead-out area 126 in the light guide substrate 12 may be in the form of a mirror surface, a germanium film, a grating or an optical fiber.
光感測元件16可設置發光二極體基板14與導光基板12之間，並實質地位於離開導光基板12的指向性光線(虛線所示)的光路徑上。在本實施態樣中，光感測元件16係以光學二極體(photo diode)為例說明，且光學二極體的光感測元件16係可設置在發光二極體基板12中，兩相鄰的發光二極體24之間，更詳細來說，光感測元件16係設置在兩相鄰的發光二極體24之間的遮光層區域BM，這樣的設計，不但無須額外增設光感測元件16的設置空間，同時也不會影響到發光二極體面板1a的顯示效率。The light sensing element 16 can be disposed between the light emitting diode substrate 14 and the light guiding substrate 12 and substantially located on a light path of the directional light (shown by a broken line) away from the light guiding substrate 12. In the embodiment, the photo-sensing element 16 is exemplified by an optical diode, and the photo-sensing element 16 of the optical diode can be disposed in the LED substrate 12, Between the adjacent light-emitting diodes 24, in more detail, the light sensing element 16 is disposed in the light-shielding layer region BM between the two adjacent light-emitting diodes 24, and the design does not require additional light. The installation space of the sensing element 16 does not affect the display efficiency of the LED panel 1a.
根據上述結構可知，由特定的發光二極體22所提供的指向性光線(虛線所示)係自訊號導入區域124進入至導光基板12後，並在導光基板12內部進行全反射，當使用者的手指FG在指紋接收區域122的範圍內進行按壓時，係改變了指向性光線(虛線所示)的路徑並同時產生一光學訊號，當指向性光線(虛線所示)自訊號導出區域126離開導光基板12後，進入至光感測元件16，光感測元件16因接受指向性光線(虛線所示)的能量進而產生電壓的變化，因此將光學訊號轉換為電氣訊號，在經由光學處理器(圖未顯示)以判讀出使用者手指FG的指紋特徵。而由於指紋特徵的光學訊號僅約占120~180位元組，因此可選擇性地與顯示處理器(圖未顯示)、觸控處理器(圖未顯示)一併整合為單一個驅動電路。According to the above configuration, the directivity light (shown by a broken line) provided by the specific light-emitting diode 22 enters the light guide substrate 12 from the signal introduction region 124, and is totally reflected inside the light guide substrate 12. When the user's finger FG is pressed within the range of the fingerprint receiving area 122, the path of the directional light (shown by the dashed line) is changed and an optical signal is generated at the same time, when the directional light (shown by the dashed line) is derived from the signal. After leaving the light guide substrate 12, the light 126 enters the light sensing element 16, and the light sensing element 16 receives the energy of the directional light (shown by the dashed line) to generate a voltage change, thereby converting the optical signal into an electrical signal. An optical processor (not shown) is used to read the fingerprint features of the user's finger FG. Since the optical signal of the fingerprint feature only occupies about 120-180 bytes, it can be selectively integrated into a single driving circuit together with a display processor (not shown) and a touch processor (not shown).
另外，發光二極體基板14與導光基板12之間係可選擇性地設置有至少一光學結構42、44、46，俾使發光二極體22提供的指向性光線(虛線所示)經過光學結構42、44、46後，可準直地進入至導光基板12的訊號導入區域124，或以具有特定入射角度的方式進入至導光基板12的訊號導入區域124，上述的光學結構42、44、46可選自光學元件、二次元件、光學微結構及其組合。在第2a圖、第2b圖及第2c圖中則揭露三種屏內光學指紋辨識的發光二極體面板1b、1c、1d的態樣，首先如第2a圖所示，其係以光學元件 (光柵) 42為例，來自發光二極體22的指向性光線(虛線所示)在進入至導光基板12之前調整為具有特定入射角度的入射光，而在第2b圖中係揭露以二次元件 (菲涅耳透鏡，Fresnel lens) 44為例的態樣，來自發光二極體22的指向性光線(虛線所示)在進入至導光基板12之前調整為準直的入射光，並於導光基板以溝槽斜面方式將光導入導光基板，此斜面也可位於導光基板邊緣，最後，在第2c圖則揭露以為光學微結構46為例的態樣，來自發光二極體22的指向性光線(虛線所示)在進入至導光基板12之前調整為準直的入射光，值得注意的是，上述的光學結構42、44、46的型態與結構，及最終指向性光線(虛線所示)進入至導光基板12的入射角度，並無特定的限制，也就是說，在採用光柵42為例的態樣中，指向性光線(虛線所示)亦可能是以準直的角度入射至導光基板12內，最重要的是，來自發光二極體22的指向性光線(虛線所示)可藉由光學結構42、44、46以在進入至導光基板12之前，依照設計與需求，而調整成可匹配的入射角度。上述雖以獨立結構體的態樣來表示光學結構42、44、46，但實際的設計上，光學結構42、44、46也可以整合在導光基板12。In addition, at least one optical structure 42 , 44 , 46 is selectively disposed between the light-emitting diode substrate 14 and the light-guiding substrate 12 , so that the directional light (shown by the dashed line) provided by the light-emitting diode 22 passes through After the optical structures 42, 44, 46, they can be collimated into the signal introduction area 124 of the light guide substrate 12 or enter the signal introduction area 124 of the light guide substrate 12 with a specific incident angle. The optical structure 42 described above. 44, 46 may be selected from the group consisting of optical elements, secondary elements, optical microstructures, and combinations thereof. In the 2a, 2b, and 2c diagrams, the three types of in-screen optical fingerprint recognition LEDs 1b, 1c, and 1d are disclosed. First, as shown in FIG. 2a, the optical components are used ( In the case of the grating 42 , the directional light from the light-emitting diode 22 (shown by a broken line) is adjusted to incident light having a specific incident angle before entering the light guiding substrate 12, and is revealed twice in the second drawing. The element (Fresnel lens) 44 is an example, and the directional light from the light-emitting diode 22 (shown by a broken line) is adjusted to collimated incident light before entering the light guide substrate 12, and The light guiding substrate guides the light into the light guiding substrate by a groove inclined surface, and the inclined surface may also be located at the edge of the light guiding substrate. Finally, in the second embodiment, the optical microstructure 46 is taken as an example, and the light emitting diode 22 is taken from the light emitting diode 22 . The directional light (shown in dashed lines) is adjusted to collimated incident light before entering the light guide substrate 12, notably the shape and structure of the optical structures 42, 44, 46 described above, and the final directional light. (indicated by a broken line) the angle of incidence into the light guide substrate 12, which is not specific Limitation, that is to say, in the case of the grating 42 as an example, directional light (shown by a broken line) may also be incident on the light guiding substrate 12 at a collimated angle, and most importantly, from the light emitting diode. The directional light of the body 22 (shown in phantom) can be adjusted by the optical structures 42, 44, 46 to match the incident angle prior to entering the light directing substrate 12, as designed and desired. Although the optical structures 42, 44, and 46 are shown as the independent structures, the optical structures 42, 44, and 46 may be integrated into the light guide substrate 12 in actual design.
請接續參照第3圖所示，其係為本創作揭露另一種屏內光學指紋辨識的發光二極體面板的結構截面示意圖，此架構下須利用折射率的不同來控制光線進入導光基板內傳遞，折射率1與導光基板相同或接近，折射率2則比導光基板小。在本實施態樣中的屏內光學指紋辨識的發光二極體面板1e，光感測元件16係為獨立的元件並設置在導光基板12的下方。Please refer to FIG. 3, which is a schematic cross-sectional view of a light-emitting diode panel of another type of on-screen optical fingerprint identification. The structure must use different refractive index to control light into the light guide substrate. The refractive index 1 is the same as or close to the light guiding substrate, and the refractive index 2 is smaller than the light guiding substrate. In the in-screen optical fingerprint recognition light-emitting diode panel 1e of the present embodiment, the light sensing element 16 is an independent component and is disposed under the light guiding substrate 12.
請接續再參考第4圖，本實施態樣中的屏內光學指紋辨識的發光二極體面板1f係揭露在導光基板12與發光二極體基板14之間，更設置有一偏光基板26及一保護玻璃基板28，不過偏光基板26及保護玻璃基板28係可選擇性地設置，換言之，偏光基板26與保護玻璃基板28係可同時設置、或擇一設置，或偏光基板26與保護玻璃基板28更可整合為單一結構。同時，偏光基板26亦可與導光基板12整合為單一結構，或偏光基板26、保護玻璃基板28與導光基板12更可整合為單一結構。根據上述可知，導光基板12除了提供用以進行指紋辨識的指向性光線(虛線所示)進行全反射之外，亦可同時具有偏光與保護的功能。Referring to FIG. 4 again, the LED backlight 1f of the in-screen optical fingerprint identification in the embodiment is disclosed between the light guide substrate 12 and the LED substrate 14, and a polarizing substrate 26 is further disposed. A protective glass substrate 28 is provided, but the polarizing substrate 26 and the protective glass substrate 28 are selectively disposed. In other words, the polarizing substrate 26 and the protective glass substrate 28 can be simultaneously disposed or alternatively disposed, or the polarizing substrate 26 and the protective glass substrate. 28 can be integrated into a single structure. At the same time, the polarizing substrate 26 may be integrated into the single structure of the light guiding substrate 12, or the polarizing substrate 26, the protective glass substrate 28 and the light guiding substrate 12 may be integrated into a single structure. As can be seen from the above, the light guide substrate 12 can have total polarized light and protection functions in addition to providing directional light (shown by a broken line) for fingerprint recognition.
綜上所述，根據本創作所揭露的屏內光學指紋辨識的發光二極體面板係將偵測指紋的光感測元件係整合在發光二極體面板內，且透過指向性光線在導光基板內的全反射，以感應按壓在指紋接收區域的指紋，並藉由光感測元件將光學訊號轉換為電氣訊號，俾以辨別指紋的特徵，尤其是可利用光電二極體所構成的光感測元件以整合於發光二極體基板的遮光層區域上，因此不會降低面板的顯示效果與品質。也因為指向性光線在進入至光感測元件之前可藉由特定的光學微結構以調整光路徑，同時更可藉由設置在導光基板與光感測元件之間的訊號放大元件(圖未顯示)，以保持光學訊號的強度、確保指紋辨識的準確度。In summary, the light-emitting diode panel of the in-screen optical fingerprint recognition disclosed in the present invention integrates the light sensing component of the fingerprint detection into the light-emitting diode panel, and is guided by the directional light. Total reflection in the substrate, inductively pressing the fingerprint in the fingerprint receiving area, and converting the optical signal into an electrical signal by the light sensing element, to distinguish the characteristics of the fingerprint, in particular, the light formed by the photodiode The sensing element is integrated on the light shielding layer region of the light emitting diode substrate, so that the display effect and quality of the panel are not lowered. Also, because the directional light can be adjusted by a specific optical microstructure before entering the light sensing element, and more preferably by a signal amplifying element disposed between the light guiding substrate and the light sensing element (not shown) Display) to maintain the intensity of the optical signal and ensure the accuracy of fingerprint recognition.
而在實際的使用上，本創作揭露的屏內光學指紋辨識的發光二極體面板可應用在行動裝置、螢幕、電視等各種具有屏幕的裝置，由於本創作的發光二極體面板具有相當大的指紋接收區域，對於使用者而言，無須太過刻意即可輕易地進行指紋的辨識，無論是喚醒裝置或進行身分辨識，均會因為使用的便利性提升而更增進使用者使用指紋保護的功能，與習知將指紋辨識設置在裝置的側表面或後表面的情況，本創作提供的屏內光學指紋辨識的發光二極體面板能夠讓指紋保護的機制更發揮其功能。In actual use, the in-screen optical fingerprint recognition light-emitting diode panel disclosed in the present invention can be applied to various screen-equipped devices such as mobile devices, screens, televisions, etc., since the LED array of the present invention has considerable size. The fingerprint receiving area allows the user to easily identify the fingerprint without being too deliberate. Whether it is a wake-up device or identity identification, the user's fingerprint protection is enhanced by the convenience of use. The function and the conventional method of setting the fingerprint identification on the side surface or the back surface of the device, the LED backlight panel provided by the present invention can enable the fingerprint protection mechanism to exert its function.
唯以上所述者，僅為本創作之較佳實施例而已，並非用來限定本創作實施之範圍。故即凡依本創作申請範圍所述之特徵及精神所為之均等變化或修飾，均應包括於本創作之申請專利範圍內。The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Therefore, any change or modification of the characteristics and spirit described in the scope of this application shall be included in the scope of the patent application for this creation.
1a、1b、1c、1d、1f‧‧‧屏內光學指紋辨識的發光二極體面板
12‧‧‧導光基板
122‧‧‧指紋接收區域
124‧‧‧訊號導入區域
126‧‧‧訊號導出區域
14‧‧‧發光二極體基板
16‧‧‧光感測元件
22‧‧‧發光二極體
24‧‧‧發光二極體
26‧‧‧偏光基板
28‧‧‧保護玻璃基板
32‧‧‧主顯示區域
34‧‧‧次顯示區域
42‧‧‧光學結構(光柵)
44‧‧‧光學結構(菲涅耳透鏡)
46‧‧‧光學結構(光學微結構)
FG‧‧‧手指
BM‧‧‧遮光層區域1a, 1b, 1c, 1d, 1f‧‧‧-in-screen optical fingerprinting LED panel
12‧‧‧Light guide substrate
122‧‧‧ Fingerprint receiving area
124‧‧‧Signal introduction area
126‧‧‧ Signal export area
14‧‧‧Light Emitting Substrate
16‧‧‧Light sensing components
22‧‧‧Lighting diode
24‧‧‧Lighting diode
26‧‧‧ polarized substrate
28‧‧‧Protective glass substrate
32‧‧‧Main display area
34‧‧‧ display areas
42‧‧‧Optical structure (grating)
44‧‧‧Optical structure (Fresnel lens)
46‧‧‧Optical structure (optical microstructure)
FG‧‧ fingers
BM‧‧‧ shading area
第1圖為本創作揭露一種屏內光學指紋辨識的發光二極體面板的結構截面示意圖。 第2a圖為以光學元件(光柵)做為光學結構的局部結構截面示意圖。 第2b圖為以二次元件(菲涅耳透鏡，Fresnel lens)做為光學結構的局部結構截面示意圖。 第2c圖為以光學微結構做為光學結構的局部結構截面示意圖。 第3圖為本創作揭露另一種屏內光學指紋辨識的發光二極體面板的結構截面示意圖。 第4圖為本創作揭露再一種屏內光學指紋辨識的發光二極體面板的結構截面示意圖。FIG. 1 is a schematic cross-sectional view showing a structure of a light-emitting diode panel for in-screen optical fingerprint recognition. Fig. 2a is a schematic cross-sectional view showing a partial structure of an optical element (grating) as an optical structure. Fig. 2b is a schematic cross-sectional view showing a partial structure of a secondary element (Fresnel lens) as an optical structure. Figure 2c is a schematic cross-sectional view of a partial structure with optical microstructures as optical structures. FIG. 3 is a schematic cross-sectional view showing the structure of another LED panel for in-screen optical fingerprint recognition. FIG. 4 is a schematic cross-sectional view showing the structure of a light-emitting diode panel with an in-screen optical fingerprint recognition.
Claims (20)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI682315B (en) * | 2018-07-03 | 2020-01-11 | 金佶科技股份有限公司 | Electronic device and fingerprint sensing method |
| CN112130702A (en) * | 2019-06-25 | 2020-12-25 | 英属开曼群岛商音飞光电科技股份有限公司 | Thin proximity sensing device |
| TWI756025B (en) * | 2020-07-13 | 2022-02-21 | 采鈺科技股份有限公司 | Micro light-emitting diode display panel, micro light-emitting diode display device, and fingerprint identification method |
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2018
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI682315B (en) * | 2018-07-03 | 2020-01-11 | 金佶科技股份有限公司 | Electronic device and fingerprint sensing method |
| CN112130702A (en) * | 2019-06-25 | 2020-12-25 | 英属开曼群岛商音飞光电科技股份有限公司 | Thin proximity sensing device |
| TWI722870B (en) * | 2019-06-25 | 2021-03-21 | 英屬開曼群島商音飛光電科技股份有限公司 | Thin proximity sensing device |
| TWI756025B (en) * | 2020-07-13 | 2022-02-21 | 采鈺科技股份有限公司 | Micro light-emitting diode display panel, micro light-emitting diode display device, and fingerprint identification method |
| US11594170B2 (en) | 2020-07-13 | 2023-02-28 | Visera Technologies Company Limited | Micro light-emitting diode display panel, micro light-emitting diode display device, and fingerprint identification method |
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