TWM595864U

TWM595864U - Light detection array device and display device

Info

Publication number: TWM595864U
Application number: TW109202826U
Authority: TW
Inventors: 江欣峻; 莊立聖
Original assignee: 奕力科技股份有限公司
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2020-05-21
Also published as: CN211956510U

Abstract

A light detection array device includes a substrate, a plurality of light detection devices and a plurality of shielding devices. The light detection devices are arranged on a surface of the substrate. One of the shielding devices is disposed on one of the light detection devices, and the width of one of the shielding devices is greater than the width of one of the light detection devices.

Description

光偵測陣列裝置和顯示裝置Light detection array device and display device

本創作涉及一種光偵測陣列裝置和顯示裝置，特別是涉及一種具有遮擋元件的光偵測陣列裝置和顯示裝置。The present invention relates to a light detection array device and a display device, in particular to a light detection array device and a display device with a blocking element.

隨著科技日新月異，可攜式顯示裝置，例如：智慧型手機(smart phone)、平板電腦(tablet PC)或是筆記型電腦(laptop PC)等，已成為了人們生活中必備之工具。隨著其功能越來越多元，其中通常儲存有私人資料，例如電話簿、相片或個人身分資訊，而具有一定的隱密性。為了保護這些資料，已發展出將指紋感測器運用在可攜式顯示裝置中。With the rapid development of technology, portable display devices, such as smart phones, tablet PCs, or laptop PCs, have become essential tools in people's lives. As its functions become more and more diverse, private data such as phonebooks, photos, or personal identity information are usually stored in it, which has a certain degree of privacy. To protect these data, fingerprint sensors have been developed for use in portable display devices.

在目前的指紋感測技術中，有發展出利用光線在裝置內產生全反射的特性來達到指紋影像偵測的效果。然而，由於全反射的光線的強度較弱，使得指紋影像偵測的效果容易受到其他強度較強的光線所影響。因此，如何提升指紋影像偵測的效果對於指紋感測技術的應用仍是非常重要的議題。In the current fingerprint sensing technology, there has been developed the feature of using light to generate total reflection in the device to achieve the effect of fingerprint image detection. However, due to the weak intensity of the totally reflected light, the effect of fingerprint image detection is easily affected by other strong light. Therefore, how to improve the effect of fingerprint image detection is still a very important issue for the application of fingerprint sensing technology.

本創作提供了一種具有遮擋元件的光偵測陣列裝置和顯示裝置，透過遮擋元件遮蔽小角度的入射光線，使光偵測元件接收具有較大入射角的斜向光線，藉此提升指紋影像偵測的效果。This creation provides a light detection array device and a display device with a blocking element, which shields incident light at a small angle through the blocking element, so that the light detection element receives oblique light with a large angle of incidence, thereby improving fingerprint image detection Measured effect.

根據一些實施例，本創作提供了一種光偵測陣列裝置。光偵測陣列裝置包括一基板、複數個光偵測元件以及複數個遮擋元件。光偵測元件設置在基板的一表面。複數個遮擋元件的其中一個遮擋元件設置在複數個光偵測元件的其中一個光偵測元件之上，且其中一個遮擋元件的寬度大於其中一個光偵測元件的寬度。According to some embodiments, the present invention provides a light detection array device. The light detection array device includes a substrate, a plurality of light detection elements, and a plurality of shielding elements. The light detection element is disposed on a surface of the substrate. One of the plurality of blocking elements is disposed above one of the plurality of light detecting elements, and the width of one of the blocking elements is greater than the width of one of the light detecting elements.

根據一些實施例，本創作提供了一種顯示裝置。顯示裝置包括一顯示面板以及一光偵測陣列。光偵測陣列設置在顯示面板內或顯示面板外，其中光偵測陣列包括複數個光偵測元件以及複數個遮擋元件。光偵測元件設置在基板的一表面。複數個遮擋元件的其中一個遮擋元件設置在複數個光偵測元件的其中一個光偵測元件之上，且其中一個遮擋元件的寬度大於其中一個光偵測元件的寬度。According to some embodiments, the present invention provides a display device. The display device includes a display panel and a light detection array. The light detection array is disposed inside or outside the display panel, wherein the light detection array includes a plurality of light detection elements and a plurality of blocking elements. The light detection element is disposed on a surface of the substrate. One of the plurality of blocking elements is disposed above one of the plurality of light detecting elements, and the width of one of the blocking elements is greater than the width of one of the light detecting elements.

本領域技術人員可經由參考以下的詳細描述並同時結合所附圖式而理解本創作，須注意的是，為了使讀者能容易瞭解及並使圖式簡潔，本創作的圖式只繪出光偵測陣列裝置和顯示裝置的一部分，且所附圖式中的特定元件並非依照實際比例繪圖。此外，圖中各元件的數量及尺寸僅作為示意，並非用來限制本創作的範圍。Those skilled in the art can understand the creation by referring to the following detailed description and at the same time combining with the attached drawings. It should be noted that in order to make it easy for the reader to understand and make the drawings concise, the drawings in this creation only depict optical detection Part of the array device and the display device, and the specific elements in the drawings are not drawn according to actual scale. In addition, the number and size of each element in the figure are only for illustration, and are not intended to limit the scope of this creation.

應了解到，當元件或膜層被稱為在另一個元件或膜層「上」或「連接到」另一個元件或膜層時，它可以直接在此另一元件或膜層上或直接連接到此另一元件或膜層，或者兩者之間存在有***的元件或膜層。相反地，當元件被稱為「直接」在另一個元件或膜層「上」或「直接連接到」另一個元件或膜層時，兩者之間不存在有***的元件或膜層。It should be understood that when an element or film layer is referred to as being "on" or "connected" to another element or film layer, it can be directly on or directly connected to the other element or film layer At this point, there is another element or film layer, or there is an interposed element or film layer between the two. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element or film, there are no intervening elements or layers.

須知悉的是，以下所舉實施例可以在不脫離本揭露的精神下，將數個不同實施例中的技術特徵進行替換、重組、混合以完成其他實施例。It should be noted that the following embodiments can replace, recombine, and mix the technical features in several different embodiments to complete other embodiments without departing from the spirit of the present disclosure.

請參考圖1，其為本創作第一實施例的光偵測陣列裝置的剖視示意圖。光偵測陣列裝置10可包括一基板100、複數個光偵測元件102以及複數個遮擋元件104。基板100可例如包括硬性基板或軟性基板。硬性基板可例如包括玻璃、石英、陶瓷、藍寶石、其他適合做為基板的材料或前述的組合，但不以此為限。軟性基板可例如包括聚醯亞胺(polyimide，PI)基板、聚碳酸(polycarbonate，PC)基板、聚對苯二甲酸乙二酯(polyethylene terephthalate，PET)基板等塑膠基板、其他適當的基板或其組合，但不以此為限。此外，基板100也可例如包括透明基板或不透明基板，但不以此為限。Please refer to FIG. 1, which is a schematic cross-sectional view of the light detection array device of the first embodiment of the invention. The light detection array device 10 may include a substrate 100, a plurality of light detection elements 102, and a plurality of blocking elements 104. The substrate 100 may include, for example, a rigid substrate or a flexible substrate. The rigid substrate may include, for example, glass, quartz, ceramic, sapphire, other materials suitable for the substrate, or a combination of the foregoing, but not limited thereto. The flexible substrate may include, for example, a plastic substrate such as a polyimide (PI) substrate, a polycarbonate (PC) substrate, a polyethylene terephthalate (PET) substrate, other suitable substrates, or Combination, but not limited to this. In addition, the substrate 100 may also include a transparent substrate or an opaque substrate, but not limited thereto.

光偵測元件102可設置在基板100的一表面1001。如圖1，光偵測元件102可設置在基板100內(如表面1001以下)，且光偵測元件102的上表面可和基板100的表面1001共平面，但不以此為限。在一些實施例中，光偵測元件102也可設置在基板100的表面1001上，但不以此為限。此外，光偵測元件102可例如包括光電二極體、光電電晶體或其他合適的光偵測元件，但不以此為限。The light detection element 102 can be disposed on a surface 1001 of the substrate 100. As shown in FIG. 1, the light detection element 102 may be disposed in the substrate 100 (eg, below the surface 1001 ), and the upper surface of the light detection element 102 may be coplanar with the surface 1001 of the substrate 100, but not limited thereto. In some embodiments, the light detection element 102 may also be disposed on the surface 1001 of the substrate 100, but it is not limited thereto. In addition, the light detection element 102 may include, for example, photodiodes, phototransistors, or other suitable light detection elements, but not limited thereto.

如圖1，複數個遮擋元件104的其中一個遮擋元件1041可設置在複數個光偵測元件102的其中一個光偵測元件1021之上。例如，遮擋元件1041可於一法線方向N設置在光偵測元件1021之上，而法線方向N可例如是垂直於基板100的表面1001的一方向。在本實施例中，一個遮擋元件104可對應一個光偵測元件102設置，但不以此為限。As shown in FIG. 1, one of the plurality of blocking elements 104 can be disposed on one of the plurality of light detecting elements 102. For example, the blocking element 1041 may be disposed above the light detection element 1021 in a normal direction N, and the normal direction N may be, for example, a direction perpendicular to the surface 1001 of the substrate 100. In this embodiment, one blocking element 104 may be provided corresponding to one light detecting element 102, but not limited to this.

如圖1，光偵測陣列裝置10可另包括一透明材料層106設置在基板100的表面1001上，其中複數個遮擋元件104可設置在透明材料層106之中。透明材料層106可例如包括氧化矽等適合的透明介電材料，但不以此為限。As shown in FIG. 1, the light detection array device 10 may further include a transparent material layer 106 disposed on the surface 1001 of the substrate 100, wherein a plurality of blocking elements 104 may be disposed in the transparent material layer 106. The transparent material layer 106 may include suitable transparent dielectric materials such as silicon oxide, but is not limited thereto.

另一方面，遮擋元件104的寬度W1可大於光偵測元件102的寬度W2。寬度W1和寬度W2可例如是從法線方向N觀測遮擋元件104和光偵測元件102所具有的寬度，但不以此為限。舉例而言，在一些實施例中，光偵測元件102的寬度W2可為約20微米，遮擋元件104的寬度W1可為約60微米，且光偵測元件102和遮擋元件104之間的距離D可為約20微米，但不以此為限。On the other hand, the width W1 of the blocking element 104 may be greater than the width W2 of the light detecting element 102. The width W1 and the width W2 may be, for example, the widths of the blocking element 104 and the light detecting element 102 as viewed from the normal direction N, but not limited thereto. For example, in some embodiments, the width W2 of the light detection element 102 may be approximately 20 microns, the width W1 of the blocking element 104 may be approximately 60 microns, and the distance between the light detection element 102 and the blocking element 104 D can be about 20 microns, but not limited to this.

由於遮擋元件104的寬度W1可大於光偵測元件102的寬度W2，使得遮擋元件104可用於遮蔽入射角較小的光線L2，可避免光偵測元件102接收到入射角較小的光線L2，並使得光偵測元件102能夠接收到入射角較大的光線L1。光線L1可例如為一斜向光線，且光線L1的入射角α可大於或等於約35°(如35°≦α)，但不以此為限。另在某些實施例中，光線L1的入射角α的範圍可為約35°至約75°(如35°≦α≦75°)，但不以此為限。光線L2可例如為一斜向光線或平行於法線方向N的一正向光線，且光線L2的入射角β的範圍可為小於約35°並大於或等於約0°(如0°≦β>35°)，但不以此為限。以上所提到的入射角α或入射角β可例如為光線L1或光線L2的行進方向與法線方向N之間的夾角。Since the width W1 of the blocking element 104 can be greater than the width W2 of the light detecting element 102, the blocking element 104 can be used to block the light L2 with a small incident angle, which can prevent the light detecting element 102 from receiving the light L2 with a small incident angle. Moreover, the light detection element 102 can receive the light L1 with a large incident angle. The light ray L1 may be, for example, an oblique light ray, and the incident angle α of the light ray L1 may be greater than or equal to about 35° (such as 35°≦α), but not limited thereto. In some embodiments, the incident angle α of the light L1 may range from about 35° to about 75° (such as 35°≦α≦75°), but it is not limited thereto. The light ray L2 may be, for example, an oblique light ray or a normal light ray parallel to the normal direction N, and the range of the incident angle β of the light ray L2 may be less than about 35° and greater than or equal to about 0° (eg 0°≦β >35°), but not limited to this. The above-mentioned incident angle α or incident angle β may be, for example, an angle between the traveling direction of the light ray L1 or the light ray L2 and the normal direction N.

當光偵測陣列裝置10用於偵測入射角較大的斜向光線時，遮擋元件104可用於遮蔽入射角較小的光線。舉例而言，在一些情況中，當入射角較大的光線(如光線L1)的強度較小，而入射角較小的光線(如光線L2)的強度較大時，透過本創作可避免光偵測陣列裝置10同時接收到入射角較大的光線以及入射角較小的光線，進而避免光偵測陣列裝置10用於偵測入射角較大的光線(強度較小)時，其量測結果受到入射角較小的光線(強度較大)的干擾。When the light detection array device 10 is used to detect oblique light with a large incident angle, the blocking element 104 can be used to shield light with a small incident angle. For example, in some cases, when the intensity of light with a large incident angle (such as light L1) is small, and the intensity of light with a small incident angle (such as light L2) is large, light can be avoided through this creation. The detection array device 10 receives light with a large incident angle and light with a small incident angle at the same time, thereby avoiding the measurement of the light detection array device 10 when it is used to detect light with a large incident angle (smaller intensity) As a result, it is disturbed by light rays with a small incident angle (larger intensity).

如圖1，在一些實施例中，遮擋元件104可包括單層結構，且遮擋元件104可包括金屬材料或吸光材料，其中吸光材料可例如是黑色的光阻材料，但不以此為限。當遮擋元件104為金屬材料時，其可反射入射角較小的光線(如光線L2)，以達到遮蔽的效果。當遮擋元件104為吸光材料時，其可吸收入射角較小的光線(如光線L2)，以達到遮蔽的效果，進而提升光偵測陣列裝置10的偵測效果。下述各實施例和變化實施例中的光偵測陣列裝置和顯示裝置中的光偵測陣列皆可參考本實施例，故相同的技術特徵於下文中不再贅述。As shown in FIG. 1, in some embodiments, the shielding element 104 may include a single-layer structure, and the shielding element 104 may include a metal material or a light-absorbing material, where the light-absorbing material may be, for example, a black photoresist material, but not limited thereto. When the shielding element 104 is a metal material, it can reflect light with a small incident angle (such as light L2) to achieve the shielding effect. When the shielding element 104 is a light-absorbing material, it can absorb light with a small incident angle (such as light L2) to achieve the shielding effect, thereby improving the detection effect of the light detection array device 10. The light detection array device and the light detection array in the display device in the following embodiments and modified embodiments can refer to this embodiment, so the same technical features will not be repeated in the following.

請參考圖2，其為本創作第一實施例的一變化實施例的光偵測陣列裝置的剖視示意圖，且圖2繪出其中一個遮擋元件1041和其中一個光偵測元件1021做為示意。在一些變化實施例中，遮擋元件104可包括多層結構。舉例而言，遮擋元件1041可包括一金屬層104a及一吸光材料層104b，其中吸光材料層104b可設置在金屬層104a和光偵測元件1021之間，但不以此為限。位在上方的金屬層104a可用於反射入射角較小的光線(如光線L2)，以達到遮蔽的效果，進而提升光偵測陣列裝置10的偵測效果。此外，位在下方的吸光材料層104b可用於吸收從光偵測陣列裝置10底部反射回來的光線(如光線L3)，可避免光線L3反射至光偵測元件1021，進而提升光偵測陣列裝置10的偵測效果。Please refer to FIG. 2, which is a schematic cross-sectional view of a light detection array device of a variation of the first embodiment of the creation, and FIG. 2 depicts one of the blocking elements 1041 and one of the light detection elements 1021 as schematics . In some variant embodiments, the shielding element 104 may include a multilayer structure. For example, the blocking element 1041 may include a metal layer 104a and a light absorbing material layer 104b, wherein the light absorbing material layer 104b may be disposed between the metal layer 104a and the light detecting element 1021, but not limited thereto. The metal layer 104a located above can be used to reflect light with a small incident angle (such as light L2) to achieve the shielding effect, thereby improving the detection effect of the light detection array device 10. In addition, the light absorbing material layer 104b located below can be used to absorb light reflected from the bottom of the light detection array device 10 (such as light L3), which can prevent the light L3 from being reflected to the light detection element 1021, thereby enhancing the light detection array device 10 detection effects.

請參考圖3，其為本創作第二實施例的顯示裝置的剖視示意圖。在一些實施例中，顯示裝置20可包括一顯示面板200以及一光偵測陣列202，其中光偵測陣列202的結構和功效可與第一實施例及/或其變化實施例(如圖1、圖2)中的光偵測陣列裝置10相同，在此不再對其贅述。如圖3，在一些實施例中，光偵測陣列202可設置在顯示面板200外，但不以此為限。舉例而言，圖3中的光偵測陣列202可例如是外掛式的光偵測陣列，且光偵測陣列202可例如透過一黏著材料黏貼至顯示面板200的一側，但不以此為限。Please refer to FIG. 3, which is a schematic cross-sectional view of a display device according to a second embodiment of the invention. In some embodiments, the display device 20 may include a display panel 200 and a light detection array 202, wherein the structure and efficacy of the light detection array 202 may be the same as the first embodiment and/or its changed embodiments (see FIG. 1 The light detection array device 10 in FIG. 2) is the same, and will not be repeated here. As shown in FIG. 3, in some embodiments, the light detection array 202 may be disposed outside the display panel 200, but not limited thereto. For example, the light detection array 202 in FIG. 3 may be, for example, a plug-in type light detection array, and the light detection array 202 may be pasted to one side of the display panel 200 through an adhesive material, but not as such limit.

顯示面板200可包括一基板2002、一基板2006及一顯示介質層2004，且顯示介質層2004可設置在基板2002和基板2006之間，但不以此為限。舉例而言，當顯示面板200為自發光顯示面板時，顯示介質層2004可包括有機發光二極體或無機發光二極體，但不以此為限。此時，光偵測陣列202可設置在顯示面板200的基板2002的下方(即相反於顯示面板200的出光面的一側)，其中基板2002可例如是薄膜電晶體基板(即TFT基板)，但不以此為限。The display panel 200 may include a substrate 2002, a substrate 2006, and a display medium layer 2004, and the display medium layer 2004 may be disposed between the substrate 2002 and the substrate 2006, but not limited thereto. For example, when the display panel 200 is a self-luminous display panel, the display medium layer 2004 may include organic light-emitting diodes or inorganic light-emitting diodes, but not limited thereto. At this time, the light detection array 202 may be disposed below the substrate 2002 of the display panel 200 (ie, the side opposite to the light exit surface of the display panel 200), where the substrate 2002 may be, for example, a thin film transistor substrate (ie, TFT substrate), But not limited to this.

此外，當顯示面板200為非自發光顯示面板(如液晶顯示面板)時，顯示介質層2004可包括液晶材料，但不以此為限。此時，光偵測陣列202可設置在顯示面板200的基板2002的下方(即相反於顯示面板200的出光面的一側)，其中基板2002可例如是薄膜電晶體基板(即TFT基板)，但不以此為限。此外，光偵測陣列202可選擇性的設置在顯示面板200的基板2002和背光模組(未繪出)之間，或者，亦可選擇性的將光偵測陣列202設置在背光模組的下方(即相反於背光模組出光的一側)，但不以此為限。In addition, when the display panel 200 is a non-self-luminous display panel (such as a liquid crystal display panel), the display medium layer 2004 may include a liquid crystal material, but not limited thereto. At this time, the light detection array 202 may be disposed below the substrate 2002 of the display panel 200 (ie, the side opposite to the light exit surface of the display panel 200), where the substrate 2002 may be, for example, a thin film transistor substrate (ie, TFT substrate), But not limited to this. In addition, the light detection array 202 can be selectively disposed between the substrate 2002 of the display panel 200 and the backlight module (not shown), or alternatively, the light detection array 202 can be selectively disposed on the backlight module Below (ie the side opposite to the light emitting from the backlight module), but not limited to this.

在顯示裝置20透過偵測全反射的光線以產生指紋影像的實施例中，當手指30的凸紋接觸顯示裝置20的表面(如基板2006的表面)時，光線遇到手指30的凸紋會部分射入皮膚而不產生全反射，故下方光偵測陣列202中與其對應的光偵測元件102(如圖1、圖2)可接收到少量的對應光線或接收不到光線。當手指30的凹紋與基板2006的表面之間包括空氣時，光線在此處的基板2006的表面會產生全反射，故下方光偵測陣列202中與其對應的光偵測元件102可接收到對應的全反射光線(如光線L1)，藉此，可產生出一指紋影像。In the embodiment in which the display device 20 generates the fingerprint image by detecting the totally reflected light, when the convexity of the finger 30 contacts the surface of the display device 20 (such as the surface of the substrate 2006), the light will encounter the convexity of the finger 30 Partially incident into the skin without total reflection, so the corresponding light detection element 102 (as shown in FIGS. 1 and 2) in the lower light detection array 202 can receive a small amount of corresponding light or no light. When air is included between the groove of the finger 30 and the surface of the substrate 2006, the light will be totally reflected on the surface of the substrate 2006 here, so the corresponding light detection element 102 in the lower light detection array 202 can be received Corresponding total reflection light (such as light L1), thereby, a fingerprint image can be generated.

然而，由於點光源的光線強度分布的特性，能夠發生全反射的光線因入射角較大而強度較小，再者，入射角較大意味著光線在顯示裝置中行進的距離較長，使得光線受到介質吸收的量增加，進而造成強度變弱。反之，當點光源發出的光線越接近正向光線時，其強度會越大，而這些光線在顯示裝置中可視為入射角較小的光線(如光線L2)。當入射角較小的光線(如光線L2)在顯示裝置內行進至下方光偵測陣列中的光偵測元件時，由於光線L2的強度大於光線L1的強度，將使得光偵測元件在接收全反射的光線時受到強光的嚴重干擾，進而無法產生亮暗對比高的指紋影像。However, due to the characteristics of the light intensity distribution of the point light source, the light that can be totally reflected has a small intensity due to a large incident angle. Furthermore, a large incident angle means that the light travels a long distance in the display device, making the light The amount absorbed by the medium increases, which in turn weakens the strength. Conversely, when the light emitted by the point light source is closer to the forward light, its intensity will be greater, and these lights can be regarded as light with a small incident angle (such as light L2) in the display device. When light with a small incident angle (such as light L2) travels within the display device to the light detection element in the light detection array below, the intensity of light L2 is greater than the intensity of light L1, which will cause the light detection element to receive The totally reflected light is severely disturbed by strong light, and thus cannot produce a fingerprint image with high contrast between light and dark.

為解決上述問題，當光偵測陣列202用於偵測入射角較大的斜向光線(如光線L1)時，遮擋元件104(如圖1、圖2)可用於遮蔽入射角較小的光線(如光線L2)，因此可避免光偵測元件102同時接收到入射角較大的光線以及入射角較小的光線，進而避免光偵測陣列202用於偵測入射角較大的光線(強度較小)時，其量測結果受到入射角較小的光線(強度較大)的干擾，並可產生亮暗對比高的指紋影像。In order to solve the above problem, when the light detection array 202 is used to detect oblique light with a large incident angle (such as light L1), the blocking element 104 (see FIGS. 1 and 2) can be used to shield light with a small incident angle (Such as light L2), thus preventing the light detection element 102 from receiving light with a large incident angle and light with a small incident angle at the same time, thereby preventing the light detection array 202 from being used to detect light (intensity) with a large incident angle When it is smaller), its measurement result is disturbed by light with a smaller incident angle (larger intensity), and it can produce a fingerprint image with high brightness and dark contrast.

請參考圖4，其為本創作第三實施例的顯示裝置的剖視示意圖。與上述實施例不同的地方在於，本實施例之光偵測陣列302可設置於(或內嵌於)一軟性有機發光二極體的顯示面板300內，但不以此為限。在顯示面板300中，一基板304和一基板306可例如為軟性基板，軟性基板可例如包括聚醯亞胺基板、聚碳酸基板、聚對苯二甲酸乙二酯基板等塑膠基板、其他適當的基板或其組合，但不以此為限。複數個薄膜電晶體308及複數個有機發光二極體310可設置在基板304上，其中，有機發光二極體310可透過薄膜電晶體308驅動，例如，一個有機發光二極體310可與至少一個薄膜電晶體308電性連接，但不以此為限。Please refer to FIG. 4, which is a schematic cross-sectional view of a display device according to a third embodiment of the invention. The difference from the above embodiment is that the light detection array 302 of this embodiment can be disposed (or embedded) in the display panel 300 of a flexible organic light emitting diode, but it is not limited thereto. In the display panel 300, a substrate 304 and a substrate 306 may be, for example, flexible substrates. The flexible substrate may include, for example, a plastic substrate such as a polyimide substrate, a polycarbonate substrate, a polyethylene terephthalate substrate, or other suitable substrates. Substrate or combination thereof, but not limited to this. A plurality of thin-film transistors 308 and a plurality of organic light-emitting diodes 310 can be disposed on the substrate 304, wherein the organic light-emitting diodes 310 can be driven through the thin-film transistors 308, for example, one organic light-emitting diode 310 can be A thin film transistor 308 is electrically connected, but not limited to this.

在本實施例中，光偵測陣列302中的複數個光偵測元件亦可設置在基板304上，其中圖4繪出其中一個光偵測元件3021作為示例。一多層封裝結構312可設置在基板304和基板306之間，多層封裝結構312可用於封裝保護基板304上的複數個有機發光二極體310。多層封裝結構312可包括多層有機及/或無機的絕緣層，但不以此為限。In this embodiment, a plurality of light detection elements in the light detection array 302 can also be disposed on the substrate 304, wherein FIG. 4 depicts one of the light detection elements 3021 as an example. A multilayer packaging structure 312 may be disposed between the substrate 304 and the substrate 306. The multilayer packaging structure 312 may be used to encapsulate a plurality of organic light emitting diodes 310 on the protective substrate 304. The multi-layer packaging structure 312 may include multiple organic and/or inorganic insulating layers, but not limited thereto.

另與第一實施例不同的地方在於，光偵測陣列302中的複數個遮擋元件並非設置在透明材料層之中，而是設置在多層封裝結構312上，或設置在多層封裝結構312和基板306之間，其中圖4繪出其中一個遮擋元件3022作為示例。例如，可透過控制多層封裝結構312中子膜層(未繪出)的數量或厚度，來決定光偵測元件3021和遮擋元件3022之間的距離D。再者，如同第一實施例及其變化實施例，遮擋元件3022可包括單層結構(如圖1)或多層結構(如圖2)。其餘有關光偵測元件3021和遮擋元件3022的技術特徵可參考第一實施例，在此不再贅述。Another difference from the first embodiment is that the plurality of shielding elements in the light detection array 302 are not disposed in the transparent material layer, but are disposed on the multilayer packaging structure 312, or are disposed on the multilayer packaging structure 312 and the substrate Between 306, FIG. 4 depicts one of the blocking elements 3022 as an example. For example, the distance D between the light detecting element 3021 and the blocking element 3022 can be determined by controlling the number or thickness of the sub-film layers (not shown) in the multilayer packaging structure 312. Furthermore, like the first embodiment and its modified embodiments, the shielding element 3022 may include a single-layer structure (see FIG. 1) or a multi-layer structure (see FIG. 2). For the remaining technical features of the light detection element 3021 and the blocking element 3022, reference may be made to the first embodiment, and details are not described herein again.

綜上所述，在本創作的光偵測陣列裝置和顯示裝置中，每一個遮擋元件上可對應設置一個光偵測元件，且遮擋元件的寬度可大於光偵測元件的寬度。當光偵測陣列裝置和顯示裝置用於偵測入射角較大的斜向光線或全反射光線時，遮擋元件可用於遮蔽入射角較小的光線。舉例而言，在一些情況中，當入射角較大的光線(如全反射光線)的強度較小，而入射角較小的光線的強度較大時，透過本創作可避免光偵測元件同時接收到入射角較大的光線以及入射角較小的光線，進而避免光偵測元件用於偵測入射角較大的光線(強度較小)時，其量測結果受到入射角較小的光線(強度較大)的干擾，並可應用於偵測全反射光線來產生亮暗對比高的指紋影像。In summary, in the light detection array device and the display device of the present invention, each blocking element can be correspondingly provided with a light detecting element, and the width of the blocking element can be greater than the width of the light detecting element. When the light detection array device and the display device are used to detect oblique rays with a large incident angle or totally reflected rays, the blocking element can be used to shield the rays with a small incident angle. For example, in some cases, when the intensity of light with a large incident angle (such as total reflection light) is small, and the intensity of light with a small incident angle is large, this creation can avoid the light detection element at the same time Receiving light with a large incident angle and light with a small incident angle, thereby avoiding that the light detection element is used to detect light with a large incident angle (smaller intensity), and its measurement result is affected by light with a smaller incident angle (Large intensity) interference, and can be used to detect fully reflected light to produce fingerprint images with high brightness and dark contrast.

10:光偵測陣列裝置 100,2002,2006,304,306:基板 1001:表面 102,1021,3021:光偵測元件 104,1041,3022:遮擋元件 104a:金屬層 104b:吸光材料層 106:透明材料層 20:顯示裝置 200,300:顯示面板 2004:顯示介質層 202,302:光偵測陣列 308:薄膜電晶體 310:有機發光二極體 312:多層封裝結構 30:手指 D:距離 L1,L2,L3:光線 N:法線方向 W1,W2:寬度 α,β:入射角 10: Light detection array device 100,2002,2006,304,306: substrate 1001: surface 102,1021,3021: light detection element 104,1041,3022: blocking element 104a: metal layer 104b: light-absorbing material layer 106: transparent material layer 20: display device 200,300: display panel 2004: Display medium layer 202,302: light detection array 308: Thin film transistor 310: Organic light-emitting diode 312: Multi-layer packaging structure 30: finger D: distance L1, L2, L3: light N: normal direction W1, W2: width α, β: angle of incidence

圖1為本創作第一實施例的光偵測陣列裝置的剖視示意圖。圖2為本創作第一實施例的一變化實施例的光偵測陣列裝置的剖視示意圖。圖3為本創作第二實施例的顯示裝置的剖視示意圖。圖4為本創作第三實施例的顯示裝置的剖視示意圖。 FIG. 1 is a schematic cross-sectional view of a light detection array device of the first embodiment of the invention. FIG. 2 is a schematic cross-sectional view of a light detection array device according to a modified embodiment of the first embodiment. FIG. 3 is a schematic cross-sectional view of the display device of the second embodiment. FIG. 4 is a schematic cross-sectional view of the display device of the third embodiment.

10:光偵測陣列裝置 10: Light detection array device

100:基板 100: substrate

1001:表面 1001: surface

102,1021:光偵測元件 102,1021: light detection element

104,1041:遮擋元件 104,1041: blocking element

106:透明材料層 106: transparent material layer

D:距離 D: distance

L1,L2:光線 L1, L2: light

N:法線方向 N: normal direction

W1,W2:寬度 W1, W2: width

α,β:入射角 α, β: angle of incidence

Claims

一種光偵測陣列裝置，包括：一基板；複數個光偵測元件，設置在所述基板的一表面；以及複數個遮擋元件，其中所述複數個遮擋元件的其中一個遮擋元件設置在所述複數個光偵測元件的其中一個光偵測元件之上，且所述其中一個遮擋元件的寬度大於所述其中一個光偵測元件的寬度。 A light detection array device, including: A substrate A plurality of light detection elements are provided on a surface of the substrate; and A plurality of shielding elements, wherein one of the plurality of shielding elements is disposed above one of the plurality of light detecting elements, and the width of the one of the shielding elements is greater than the The width of a light detection element.

根據請求項1所述的光偵測陣列裝置，其中所述其中一個光偵測元件接收入射角大於或等於35°的一斜向光線。The light detection array device according to claim 1, wherein the one of the light detection elements receives an oblique light with an incident angle greater than or equal to 35°.

根據請求項1所述的光偵測陣列裝置，另包括一透明材料層設置在所述基板的所述表面上，其中所述複數個遮擋元件設置在所述透明材料層之中。The light detection array device according to claim 1, further comprising a transparent material layer disposed on the surface of the substrate, wherein the plurality of blocking elements are disposed in the transparent material layer.

根據請求項1所述的光偵測陣列裝置，其中所述其中一個遮擋元件包括金屬材料。The light detection array device according to claim 1, wherein the one of the blocking elements includes a metal material.

根據請求項1所述的光偵測陣列裝置，其中所述其中一個遮擋元件包括吸光材料。The light detection array device according to claim 1, wherein the one of the blocking elements includes a light absorbing material.

根據請求項1所述的光偵測陣列裝置，其中所述其中一個遮擋元件包括一金屬層及一吸光材料層，其中所述吸光材料層設置在所述金屬層和所述其中一個光偵測元件之間。The light detection array device according to claim 1, wherein the one of the blocking elements includes a metal layer and a light absorbing material layer, wherein the light absorbing material layer is disposed on the metal layer and the one of the light detection Between components.

一種顯示裝置，包括：一顯示面板；以及一光偵測陣列，設置在所述顯示面板內或所述顯示面板外，其中所述光偵測陣列包括：複數個光偵測元件，設置在一基板的一表面；以及複數個遮擋元件，其中所述複數個遮擋元件的其中一個遮擋元件設置在所述複數個光偵測元件的其中一個光偵測元件之上，且所述其中一個遮擋元件的寬度大於所述其中一個光偵測元件的寬度。 A display device, including: A display panel; and A light detection array is provided in the display panel or outside the display panel, wherein the light detection array includes: A plurality of light detection elements arranged on a surface of a substrate; and A plurality of shielding elements, wherein one of the plurality of shielding elements is disposed above one of the plurality of light detecting elements, and the width of the one of the shielding elements is greater than the The width of a light detection element.

根據請求項7所述的顯示裝置，其中所述其中一個光偵測元件接收入射角大於或等於35°的一斜向光線。The display device according to claim 7, wherein the one of the light detection elements receives an oblique light with an incident angle greater than or equal to 35°.

根據請求項7所述的顯示裝置，其中所述其中一個遮擋元件包括金屬材料。The display device according to claim 7, wherein the one of the blocking elements includes a metal material.

根據請求項7所述的顯示裝置，其中所述其中一個遮擋元件包括吸光材料。The display device according to claim 7, wherein the one of the blocking elements includes a light absorbing material.

根據請求項7所述的顯示裝置，其中所述其中一個遮擋元件包括一金屬層及一吸光材料層，其中所述吸光材料層設置在所述金屬層和所述其中一個光偵測元件之間。The display device according to claim 7, wherein the one of the blocking elements includes a metal layer and a light absorbing material layer, wherein the light absorbing material layer is disposed between the metal layer and the one light detecting element .