本發明是有關於一種顯示裝置以及電子裝置，且特別是有關於一種立體顯示裝置以及具有立體顯示裝置的電子裝置。The present invention relates to a display device and an electronic device, and more particularly to a stereoscopic display device and an electronic device having the stereoscopic display device.
當未施加電壓於液晶透鏡時，液晶分子的長軸方向依照配向膜(alignment layer)的配向方向排列。此時，當光線通過液晶層時，光線的相位將不受影響；當施加電壓於液晶透鏡時，液晶分子受到液晶透鏡內的上下電極層之間的電場驅動而偏轉，其中位於電極層邊緣位置的電場因為邊緣效應而具有梯度變化。由於液晶分子的長軸方向依電場方向排列，因此當光線通過液晶層時，光線的相位將隨液晶層中的液晶分子偏轉而產生折射，而且隨著不同位置的液晶分子的偏轉角度不同而產生折射率變化，其相位變化如同漸變式折射率透鏡。When no voltage is applied to the liquid crystal lens, the long-axis directions of the liquid crystal molecules are aligned in accordance with the alignment direction of the alignment layer. At this time, when the light passes through the liquid crystal layer, the phase of the light is not affected; when a voltage is applied to the liquid crystal lens, the liquid crystal molecules are deflected by the electric field between the upper and lower electrode layers in the liquid crystal lens, and the edge of the electrode layer is located. The electric field has a gradient change due to the edge effect. Since the long-axis direction of the liquid crystal molecules is arranged in the direction of the electric field, when the light passes through the liquid crystal layer, the phase of the light will be refracted by the deflection of the liquid crystal molecules in the liquid crystal layer, and the deflection angle of the liquid crystal molecules at different positions is different. The refractive index changes with a phase change like a graded index lens.
液晶透鏡可搭配顯示面板並作為2D/3D顯示之切換裝置。當不施加電壓於液晶透鏡時，顯示面板輸出的光線不受液晶透鏡的影響，此即為2D顯示模式；當施加電壓於液晶透鏡時，顯示面板輸出的光線可藉液晶透鏡而聚焦，顯示面板輸出左右眼的畫面可透過液晶透鏡分別聚焦於使用者的左右眼以達分光效果，使用者的左右眼可觀賞到不同的畫面，此即為3D顯示模式。The liquid crystal lens can be used with a display panel and as a switching device for 2D/3D display. When no voltage is applied to the liquid crystal lens, the light outputted by the display panel is not affected by the liquid crystal lens, which is a 2D display mode; when a voltage is applied to the liquid crystal lens, the light output by the display panel can be focused by the liquid crystal lens, and the display panel The screens for outputting the left and right eyes can be focused on the left and right eyes of the user through the liquid crystal lens to achieve the splitting effect, and the left and right eyes of the user can view different screens, which is the 3D display mode.
在施加相同的電壓下，液晶透鏡陣列之等效焦距(effective focal length,EFL)為一定值，造成立體顯示器僅有單一的最佳觀賞距離。然而，由於不同使用者對於3D畫面的感受度不同，因此，此最佳觀賞距離不一定適合不同的使用者，因而無法滿足讓不同使用者都可以觀賞到顯示效果最佳之立體影像的需求。When the same voltage is applied, the effective focal length (EFL) of the liquid crystal lens array is a certain value, resulting in a stereoscopic display having only a single optimal viewing distance. However, since different users have different sensitivities to 3D images, the optimal viewing distance is not necessarily suitable for different users, and thus the need for different users to view the stereoscopic images with the best display effect cannot be satisfied.
本發明提供一種立體顯示裝置，可依不同使用者調整聚焦位置而具有良好的觀賞效果。The invention provides a stereoscopic display device, which can have a good viewing effect according to different users adjusting the focus position.
本發明提供一種電子裝置，其包括上述立體顯示裝置，因此可提供良好的觀賞效果。The present invention provides an electronic device including the above-described stereoscopic display device, thereby providing a good viewing effect.
本發明提出一種立體顯示裝置，其包括顯示面板、液晶透鏡、辨識模組以及驅動電路。顯示面板輸出畫面。液晶透鏡設置於顯示面板上。液晶透鏡將畫面的顯示光線聚焦於聚焦位置。辨識模組用以擷取並且辨識影像，以依據辨識的結果輸出辨識訊號。驅動電路電性連接液晶透鏡與辨識模組，其中驅動電路依據辨識訊號驅動液晶透鏡以調整聚焦位置。The invention provides a stereoscopic display device, which comprises a display panel, a liquid crystal lens, an identification module and a driving circuit. Display panel output screen. The liquid crystal lens is disposed on the display panel. The liquid crystal lens focuses the display light of the picture to the focus position. The identification module is configured to capture and recognize the image to output an identification signal according to the recognized result. The driving circuit is electrically connected to the liquid crystal lens and the identification module, wherein the driving circuit drives the liquid crystal lens according to the identification signal to adjust the focus position.
本發明另提出一種電子裝置，其包括立體顯示裝置以及處理器。立體顯示裝置包括顯示面板、液晶透鏡、辨識模組以及驅動電路。顯示面板輸出畫面。液晶透鏡設置於顯示面板上。液晶透鏡將畫面的顯示光線聚焦於聚焦位置。辨識模組用以擷取並且辨識影像，以依據辨識的結果輸出辨識訊號。驅動電路電性連接液晶透鏡與辨識模組，其中驅動電路依據辨識訊號驅動液晶透鏡以調整聚焦位置。處理器控制立體顯示裝置輸出顯示畫面。The invention further provides an electronic device comprising a stereoscopic display device and a processor. The stereoscopic display device includes a display panel, a liquid crystal lens, an identification module, and a driving circuit. Display panel output screen. The liquid crystal lens is disposed on the display panel. The liquid crystal lens focuses the display light of the picture to the focus position. The identification module is used to capture and recognize the image according to the identification result.Output identification signal. The driving circuit is electrically connected to the liquid crystal lens and the identification module, wherein the driving circuit drives the liquid crystal lens according to the identification signal to adjust the focus position. The processor controls the stereoscopic display device to output a display screen.
在本發明之一實施例中，上述之辨識模組包括影像擷取單元、資料儲存單元、人臉偵測單元以及特徵比對單元。影像擷取單元用以擷取影像。資料儲存單元用以儲存至少一登錄人臉影像的特徵。人臉偵測單元用以偵測影像中的偵側人臉影像。特徵比對單元用以計算偵測人臉影像的特徵並比對偵測人臉影像的特徵是否符合上述登錄人臉影像的特徵，並且依據比對的結果輸出辨識訊號。In an embodiment of the invention, the identification module includes an image capturing unit, a data storage unit, a face detecting unit, and a feature comparison unit. The image capturing unit is used to capture images. The data storage unit is configured to store at least one feature of the login face image. The face detection unit is configured to detect the detected face image in the image. The feature comparison unit is configured to calculate a feature of the detected face image and compare whether the feature of the detected face image meets the feature of the registered face image, and output the identification signal according to the result of the comparison.
在本發明之一實施例中，當上述之辨識模組判斷偵測人臉影像的特徵符合上述登錄人臉影像的特徵時，驅動電路依據辨識訊號載入對應於登錄人臉影像的電壓設定值，並且依據電壓設定值驅動液晶透鏡以調整聚焦位置。In an embodiment of the present invention, when the identification module determines that the feature of the detected face image conforms to the feature of the registered face image, the driving circuit loads the voltage setting value corresponding to the registered face image according to the identification signal. And driving the liquid crystal lens according to the voltage setting to adjust the focus position.
在本發明之一實施例中，當上述之辨識模組判斷偵測人臉影像的特徵不符合上述登錄人臉影像的特徵時，偵測人臉影像的特徵被儲存至儲存資料庫以登錄為上述登錄人臉影像的特徵。In an embodiment of the present invention, when the identification module determines that the feature of the detected face image does not conform to the feature of the registered face image, the feature of the detected face image is stored in the storage database to be registered as The characteristics of the above login face image.
在本發明之一實施例中，上述之驅動電路包括微處理器、電壓調整單元以及輸出單元。微處理器接收辨識訊號並依據辨識訊號輸出處理訊號至電壓調整單元。電壓調整單元接收處理訊號並形成驅動訊號。輸出單元輸出驅動訊號至液晶透鏡。In an embodiment of the invention, the driving circuit includes a microprocessor, a voltage adjusting unit, and an output unit. The microprocessor receives the identification signal and outputs a processing signal to the voltage adjustment unit according to the identification signal. The voltage adjustment unit receives the processing signal and forms a driving signal. The output unit outputs a driving signal to the liquid crystal lens.
在本發明之一實施例中，上述之電壓調整單元包括可變電阻。In an embodiment of the invention, the voltage adjustment unit includesVariable resistance.
在本發明之一實施例中，上述之立體顯示裝置更包括設定介面。設定介面用以在偵測使用者的位置後對應調整液晶透鏡的聚焦位置。In an embodiment of the invention, the stereoscopic display device further includes a setting interface. The setting interface is configured to adjust the focus position of the liquid crystal lens correspondingly after detecting the position of the user.
在本發明之一實施例中，上述之立體顯示裝置更包括設定介面。設定介面用以提供使用者自行調整電壓設定值，其中液晶透鏡依據使用者所設定的電壓設定值而調整聚焦位置。In an embodiment of the invention, the stereoscopic display device further includes a setting interface. The setting interface is used to provide the user to adjust the voltage setting value, wherein the liquid crystal lens adjusts the focus position according to the voltage setting value set by the user.
在本發明之一實施例中，上述之設定介面更用以將使用者的偵側人臉影像儲存為登錄人臉影像並且儲存上述使用者的對應的電壓設定值。In an embodiment of the invention, the setting interface is further configured to store the detected facial image of the user as a registered facial image and store the corresponding voltage setting value of the user.
基於上述，本發明之立體顯示裝置的辨識模組可辨識不同的使用者並依不同使用者調整液晶透鏡的聚焦位置，因此可以對應不同的使用者調整其最佳觀賞距離。據此，使用者可以感受到最佳的立體顯示效果。Based on the above, the identification module of the stereoscopic display device of the present invention can recognize different users and adjust the focus position of the liquid crystal lens according to different users, so that the optimal viewing distance can be adjusted corresponding to different users. According to this, the user can feel the best stereoscopic display effect.
為讓本發明之上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。The above described features and advantages of the present invention will be more apparent from the following description.
圖1為本發明一實施例之立體顯示裝置的剖面示意圖。圖1的立體顯示裝置10僅繪示液晶透鏡100以及顯示面板200並省略繪示部分構件。請參照圖1，液晶透鏡100包括第一基板110、第一電極層112、第一配向層114、第二基板120、第二電極層122、第二配向層124以及液晶層130。第一電極層112設置於第一基板110上。第一配向層114設置於第一電極層112上。第二基板120與第一基板110對向設置。第二電極層122設置於第二基板120上且面向第一配向層114設置。第二配向層124設置於第二電極層122上。液晶層130位於第一配向層114與第二配向層124之間，且液晶層130包括多個液晶分子132。1 is a cross-sectional view showing a stereoscopic display device according to an embodiment of the present invention. The stereoscopic display device 10 of FIG. 1 only shows the liquid crystal lens 100 and the display panel 200 and the parts are omitted. Referring to FIG. 1 , the liquid crystal lens 100 includes a first substrate 110 , a first electrode layer 112 , a first alignment layer 114 , a second substrate 120 , a second electrode layer 122 , a second alignment layer 124 , and a liquid crystal layer130. The first electrode layer 112 is disposed on the first substrate 110. The first alignment layer 114 is disposed on the first electrode layer 112. The second substrate 120 is disposed opposite to the first substrate 110. The second electrode layer 122 is disposed on the second substrate 120 and disposed facing the first alignment layer 114 . The second alignment layer 124 is disposed on the second electrode layer 122. The liquid crystal layer 130 is located between the first alignment layer 114 and the second alignment layer 124, and the liquid crystal layer 130 includes a plurality of liquid crystal molecules 132.
第一基板110設置於顯示面板200與第二基板120之間。在本實施例中，第一電極層112是未圖案化的電極層，第二電極層122是圖案化的電極層。第二電極層122例如是具有多個開口122H的電極層。第一電極層112與第二電極層122例如是透明導電材料層。The first substrate 110 is disposed between the display panel 200 and the second substrate 120. In the present embodiment, the first electrode layer 112 is an unpatterned electrode layer, and the second electrode layer 122 is a patterned electrode layer. The second electrode layer 122 is, for example, an electrode layer having a plurality of openings 122H. The first electrode layer 112 and the second electrode layer 122 are, for example, transparent conductive material layers.
顯示面板200為可以輸出2D以及3D畫面的顯示面板。在2D顯示模式時，顯示面板200輸出2D畫面。在3D顯示模式時，顯示面板200輸出3D畫面，其中3D畫面包括左眼畫面以及右眼畫面，左眼畫面以及右眼畫面可以藉由液晶透鏡100分別投射至使用者的左右眼，以讓使用者的左右眼觀賞到不同的畫面而感受到立體影像。顯示面板200例如是液晶顯示面板，但本發明不以此為限。在其他實施例中，顯示面板200亦可為任何可顯示畫面之顯示面板，例如是有機電致發光顯示面板、電泳顯示面板、電漿顯示面板、電濕潤顯示面板、場發射顯示面板或是其他形式之顯示面板。The display panel 200 is a display panel that can output 2D and 3D screens. In the 2D display mode, the display panel 200 outputs a 2D picture. In the 3D display mode, the display panel 200 outputs a 3D picture, wherein the 3D picture includes a left eye picture and a right eye picture, and the left eye picture and the right eye picture can be respectively projected to the left and right eyes of the user by the liquid crystal lens 100 for use. The left and right eyes of the viewer see different images and feel the stereoscopic image. The display panel 200 is, for example, a liquid crystal display panel, but the invention is not limited thereto. In other embodiments, the display panel 200 can also be any display panel capable of displaying a picture, such as an organic electroluminescent display panel, an electrophoretic display panel, a plasma display panel, an electrowetting display panel, a field emission display panel, or the like. Form display panel.
在未施加電壓的情況下，液晶透鏡100中的液晶分子132的長軸方向會沿著第一配向層114以及第二配向層124的配向方向而排列，液晶分子132例如是平行第一配向層114以及第二配向層124。顯示面板200輸出2D畫面，2D畫面的顯示光線L穿過液晶層130之後不改變其相位，以讓使用者觀賞到2D的顯示畫面。In the case where no voltage is applied, the long axis direction of the liquid crystal molecules 132 in the liquid crystal lens 100 will follow the first alignment layer 114 and the second alignment layer 124.The alignment direction of the liquid crystal molecules 132 is, for example, a parallel first alignment layer 114 and a second alignment layer 124. The display panel 200 outputs a 2D picture, and the display light L of the 2D picture does not change its phase after passing through the liquid crystal layer 130, so that the user can view the 2D display picture.
圖2A為施加第一電壓至圖1之立體顯示裝置的剖面示意圖。請參照圖2A，透過第一電極層112以及第二電極層122施加第一電壓V1至立體顯示裝置10，位於第一電極層112以及第二電極層122之間的液晶分子132受到電場的驅動而偏轉，其中液晶分子132的長軸方向例如與第一基板110以及第二基板120垂直。第二電極層122是圖案化的電極層，在開口122H之處，由於沒有電場的存在，因此液晶分子132不受電場的影響而沿著第一配向層114以及第二配向層124的配向方向排列，其中液晶分子132的長軸方向例如與第一基板110以及第二基板120平行。此時，在第二電極層122的電極邊緣之處，液晶分子132的傾斜角度隨著電場的減弱而逐漸改變。2A is a schematic cross-sectional view showing the application of the first voltage to the stereoscopic display device of FIG. 1. Referring to FIG. 2A, the first voltage V1 is applied to the stereoscopic display device 10 through the first electrode layer 112 and the second electrode layer 122, and the liquid crystal molecules 132 located between the first electrode layer 112 and the second electrode layer 122 are driven by an electric field. In the deflection, the long-axis direction of the liquid crystal molecules 132 is, for example, perpendicular to the first substrate 110 and the second substrate 120. The second electrode layer 122 is a patterned electrode layer. At the opening 122H, since there is no electric field, the liquid crystal molecules 132 are not affected by the electric field and are along the alignment direction of the first alignment layer 114 and the second alignment layer 124. The arrangement is such that the long axis direction of the liquid crystal molecules 132 is, for example, parallel to the first substrate 110 and the second substrate 120. At this time, at the electrode edge of the second electrode layer 122, the inclination angle of the liquid crystal molecules 132 gradually changes as the electric field is weakened.
顯示面板200輸出3D畫面時，3D畫面包括左眼畫面以及右眼畫面，在此以左眼畫面為例說明。當左眼畫面的顯示光線L1通過液晶透鏡100的液晶層130時，顯示光線L1會隨著液晶分子132的傾斜而產生折射，而且隨著液晶分子132傾斜角度的不同而具有不同的折射方向，並將顯示光線L1聚焦於聚焦位置F。換言之，液晶透鏡100可將顯示光線L1投射至使用者的左眼且液晶透鏡100具有等效焦距。在此是以使用液晶透鏡100將左眼畫面的顯示光線聚焦為例說明。右眼畫面的聚焦方式與左眼畫面的聚焦方式相同，因此，此領域具有通常知識者在參酌本實施例後即可理解立體顯示裝置10的3D顯示模式。When the display panel 200 outputs a 3D picture, the 3D picture includes a left eye picture and a right eye picture, and the left eye picture is taken as an example here. When the display light L1 of the left-eye picture passes through the liquid crystal layer 130 of the liquid crystal lens 100, the display light L1 is refracted with the inclination of the liquid crystal molecules 132, and has different refractive directions depending on the inclination angle of the liquid crystal molecules 132. The display light L1 is focused on the focus position F. In other words, the liquid crystal lens 100 can project the display light L1 to the left eye of the user and the liquid crystal lens 100 has an equivalent focal length. Here, the liquid crystal lens 100 is used to display the left eye picture.The light focusing is taken as an example. The focus mode of the right-eye picture is the same as that of the left-eye picture. Therefore, those skilled in the art can understand the 3D display mode of the stereoscopic display device 10 after considering the present embodiment.
圖2B為施加第二電壓至圖1之立體顯示裝置的剖面示意圖。請參照圖2B，由於第二電壓V2大於第一電壓V1，因此第一電極層112與第二電極層122之間的電場強度較大，使得位於開口122H之間的液晶分子132的偏轉角度增加，而改變液晶透鏡100的折射率。據此，液晶透鏡100的等效焦距縮短，以使聚焦位置F更靠近立體顯示裝置。承上述，透過調整提供給液晶透鏡100的電壓大小，可以調整聚焦位置F，並藉此調整使用者的觀賞距離。2B is a schematic cross-sectional view showing the application of the second voltage to the stereoscopic display device of FIG. 1. Referring to FIG. 2B, since the second voltage V2 is greater than the first voltage V1, the electric field strength between the first electrode layer 112 and the second electrode layer 122 is greater, so that the deflection angle of the liquid crystal molecules 132 located between the openings 122H is increased. And the refractive index of the liquid crystal lens 100 is changed. Accordingly, the equivalent focal length of the liquid crystal lens 100 is shortened so that the focus position F is closer to the stereoscopic display device. According to the above, by adjusting the magnitude of the voltage supplied to the liquid crystal lens 100, the focus position F can be adjusted, and thereby the viewing distance of the user can be adjusted.
圖3為本實施例之立體顯示裝置的方塊圖。請參照圖3，立體顯示裝置10包括液晶透鏡100、顯示面板200、驅動電路300、辨識模組400以及設定介面500。辨識模組400包括影像擷取單元410、資料儲存單元420、人臉偵測單元430以及特徵比對單元440。3 is a block diagram of a stereoscopic display device of the embodiment. Referring to FIG. 3 , the stereoscopic display device 10 includes a liquid crystal lens 100 , a display panel 200 , a driving circuit 300 , an identification module 400 , and a setting interface 500 . The identification module 400 includes an image capturing unit 410, a data storage unit 420, a face detecting unit 430, and a feature comparison unit 440.
圖4為驅動電路300的方塊圖。圖5為本實施例之立體顯示裝置的驅動流程示意圖。請同時參照圖3、圖4以及圖5，驅動電路300包括微處理器310、電壓調整單元320以及輸出單元330，其中電壓調整單元320例如是可變電阻。4 is a block diagram of the drive circuit 300. FIG. 5 is a schematic diagram showing the driving process of the stereoscopic display device of the embodiment. Referring to FIG. 3, FIG. 4 and FIG. 5 simultaneously, the driving circuit 300 includes a microprocessor 310, a voltage adjusting unit 320, and an output unit 330, wherein the voltage adjusting unit 320 is, for example, a variable resistor.
首先，進行步驟S110，透過影像擷取單元410擷取使用者的影像。接著，進行步驟S120，透過人臉偵測單元430偵測上述影像中的人臉影像以得到偵測人臉影像。偵測方法例如是透過Haar-like演算法進行演算。Haar-like演算法是在特徵資料庫中分類出最能代表人臉特徵的一組特徵群，再利用此組特徵群作為偵測人臉的依據，將人臉影像從影像中標示出來。First, in step S110, the image capturing unit 410 captures the image of the user. Then, in step S120, the face detection unit 430 detects the face image in the image to obtain a detected face image. DetectiveThe measurement method is, for example, a calculation using a Haar-like algorithm. The Haar-like algorithm classifies a group of feature groups that best represent face features in the feature database, and then uses the group of feature groups as the basis for detecting faces, and marks the face images from the images.
再來，進行步驟S130，透過特徵比對單元440計算上述偵測人臉影像的特徵。計算方法例如是小波轉換演算法。小波轉換演算法將資訊依重要性不同而保留在不同的頻帶中。一般而言，低頻部分儲存人眼較能明顯感受到的資料，高頻部分儲存較不重要的資料，如雜訊等。一張人臉影像經由小波轉換後，低頻範圍的小波係數即稱為小波臉。資料儲存單元420中即儲存了至少一位使用者的登錄人臉影像以及其相對應的設定參數，其中就是以使用者的偵測人臉影像的小波轉換的低頻部分作為登錄人臉影像的特徵。Then, in step S130, the feature comparison unit 440 calculates the feature of the detected face image. The calculation method is, for example, a wavelet transform algorithm. The wavelet transform algorithm keeps the information in different frequency bands depending on the importance. In general, the low frequency part stores information that is more noticeable to the human eye, and the high frequency part stores less important information such as noise. After a face image is converted by wavelet, the wavelet coefficient in the low frequency range is called the wavelet face. The data storage unit 420 stores at least one user's login face image and corresponding setting parameters, wherein the low frequency part of the wavelet transform of the user's detected face image is used as the feature of the registered face image. .
接著，進行步驟S140，比對偵測人臉影像的特徵是否符合所述登錄人臉影像的特徵，並輸出辨識訊號。詳細而言，特徵比對單元440將偵測人臉影像的特徵與資料儲存單元420中儲存的登錄人臉影像的特徵進行比對，其中是以相似度作為比對成功與否的判斷。在本實施例中，當相似度達80%以上，則視為偵測人臉影像的特徵符合登錄人臉影像的特徵。當然，本發明不限於此。在其他實施例中，也可以設定不同的比對標準。Next, in step S140, the feature of detecting the face image is compared with the feature of the registered face image, and the identification signal is output. In detail, the feature comparison unit 440 compares the feature of the detected face image with the feature of the registered face image stored in the data storage unit 420, wherein the similarity is used as a comparison of the success or failure of the comparison. In this embodiment, when the degree of similarity is more than 80%, it is considered that the feature of the detected face image conforms to the feature of the registered face image. Of course, the invention is not limited thereto. In other embodiments, different alignment criteria can also be set.
在比對之後，辨識模組400將輸出辨識訊號至驅動電路300。驅動電路300的微處理器310接收上述辨識訊號後會輸出處理訊號至電壓調整單元320。電壓調整單元320依據上述處理訊號調整電阻值。接著，透過輸出單元330將驅動訊號輸出以驅動液晶透鏡100。After the comparison, the identification module 400 will output an identification signal to the driving circuit 300. The microprocessor 310 of the driving circuit 300 receives the above identification signalThe processing signal is then output to the voltage adjustment unit 320. The voltage adjustment unit 320 adjusts the resistance value according to the above processing signal. Then, the driving signal is output through the output unit 330 to drive the liquid crystal lens 100.
詳細而言，使用者的觀賞距離為顯示面板200之各個畫素的顯示光線的聚焦位置，因此液晶透鏡100的等效焦距與最佳觀賞距離成正比，等效焦距與驅動電壓成反比。當驅動電壓不變時，各個串聯電阻(即上述之可變電阻以及液晶透鏡上之電路的電阻)的分壓與電阻值成正比，因此當可變電阻值增加時，輸入液晶透鏡100的驅動電壓減少。換言之，可變電阻值與驅動電壓成反比。In detail, the viewing distance of the user is the focus position of the display light of each pixel of the display panel 200. Therefore, the equivalent focal length of the liquid crystal lens 100 is proportional to the optimal viewing distance, and the equivalent focal length is inversely proportional to the driving voltage. When the driving voltage is constant, the voltage division of each series resistance (ie, the above-mentioned variable resistance and the resistance of the circuit on the liquid crystal lens) is proportional to the resistance value, so when the variable resistance value is increased, the liquid crystal lens 100 is input. The drive voltage is reduced. In other words, the variable resistance value is inversely proportional to the drive voltage.
接著，當偵測人臉影像的特徵符合登錄人臉影像的特徵時，進行步驟S141，載入與登錄人臉影像對應的電壓設定值。詳細而言，驅動電路300可依據辨識訊號載入與登錄人臉影像對應的電壓設定值，並藉以調整液晶透鏡100的聚焦位置。換言之，液晶透鏡100將依據比對結構調整畫面的顯示光線L1的聚焦位置F，進而調整使用者的最佳觀賞距離。如此一來，本實施例之立體顯示裝置10可依據不同使用者來進行智慧型3D顯示，以使不同使用者感受到顯示效果良好的立體影像。Next, when detecting that the feature of the face image conforms to the feature of the registered face image, step S141 is performed to load the voltage setting value corresponding to the registered face image. In detail, the driving circuit 300 can load the voltage setting value corresponding to the registered face image according to the identification signal, and thereby adjust the focus position of the liquid crystal lens 100. In other words, the liquid crystal lens 100 adjusts the focus position F of the display light L1 of the screen according to the alignment structure, thereby adjusting the optimal viewing distance of the user. In this way, the stereoscopic display device 10 of the embodiment can perform smart 3D display according to different users, so that different users can feel the stereoscopic image with good display effect.
當使用者認為於此最佳觀賞距離下的觀賞效果不佳時，可以選擇性地進行步驟S150，進入設定介面500並使用設定介面500進行聚焦位置F的微調。設定介面500的設定流程將於後續段落中詳細介紹。When the user thinks that the viewing effect under the optimal viewing distance is not good, step S150 can be selectively performed to enter the setting interface 500 and perform fine adjustment of the focus position F using the setting interface 500. The setting process of the setting interface 500 will be described in detail in the subsequent paragraphs.
當上述步驟S140比對結果為不符合時，即相似度低於80%時，則進行步驟S142，載入預設的電壓設定值，並且依據此預設的電壓設定值來驅動液晶透鏡100。此時，可以選擇性地進行步驟S150，進入設定介面500並使用設定介面500進行聚焦位置F的微調。設定介面500的設定流程將於後續段落中詳細介紹。When the comparison result of the above step S140 is non-conformity, that is, the similarity is low.At 80%, the process proceeds to step S142, the preset voltage setting value is loaded, and the liquid crystal lens 100 is driven according to the preset voltage setting value. At this time, step S150 can be selectively performed, the setting interface 500 is entered, and the fine adjustment of the focus position F is performed using the setting interface 500. The setting process of the setting interface 500 will be described in detail in the subsequent paragraphs.
圖6為本實施例之立體顯示裝置使用設定介面的設定流程示意圖。整體而言，設定介面500可用以提供使用者自行調整電壓設定值，讓液晶透鏡100依據使用者所設定的電壓設定值而調整其聚焦位置F。請同時參照圖3以及圖6，首先，進行步驟S210，擷取影像，例如是擷取使用者的影像。接著，進行步驟S220，偵測影像中的人臉影像。在本實施例中，步驟S210以及步驟S220可藉由辨識模組400來執行，因此上述步驟S210以及步驟S220的技術內容可以參考前述的步驟S110以及步驟S120。當然，本發明不限於此。在其他實施例中，步驟S210以及步驟S220也可藉由其他具有相似功能的構件來執行，本發明並不加以限制。FIG. 6 is a schematic flow chart showing the setting process of the setting interface using the stereoscopic display device of the embodiment. In general, the setting interface 500 can be used to provide the user to adjust the voltage setting value, and the liquid crystal lens 100 adjusts the focus position F according to the voltage setting value set by the user. Referring to FIG. 3 and FIG. 6 simultaneously, first, in step S210, the image is captured, for example, the image of the user is captured. Next, step S220 is performed to detect a face image in the image. In this embodiment, the step S210 and the step S220 can be performed by the identification module 400. Therefore, the technical contents of the above steps S210 and S220 can refer to the foregoing steps S110 and S120. Of course, the invention is not limited thereto. In other embodiments, step S210 and step S220 may also be performed by other components having similar functions, and the invention is not limited thereto.
接著，進行步驟S230，偵測人眼位置。詳細而言，設定介面500可儲存一組已知距離的眼距資料。當影像擷取單元410擷取到新的影像時，此時可取得新的眼距資料，設定介面500會比對新的眼距資料與已知的眼距資料，若新的眼距資料大於已知眼距資料，則表示使用者的觀賞位置較上述已知距離遠。若新的眼距資料小於已知眼距資料，則表示使用者的觀賞位置較上述已知距離近。Next, step S230 is performed to detect the position of the human eye. In detail, the setting interface 500 can store a set of eye distance data of a known distance. When the image capturing unit 410 captures a new image, a new eye distance data can be obtained at this time, and the setting interface 500 compares the new eye distance data with the known eye distance data, if the new eye distance data is greater than Knowing the eye distance data indicates that the user's viewing position is farther than the above known distance. If the new eye distance data is smaller than the known eye distance data, it means that the user's viewing position is closer than the known distance.
接著，進行步驟S240，計算並載入電壓設定值以調整聚焦位置。詳細而言，若是使用者的觀賞位置較已知距離遠，可以透過調高可變電阻的電阻值以使驅動電壓減少，據此，可增加液晶透鏡100的等效焦距並藉以調整聚焦位置F。反之，若是使用者的觀賞位置較已知距離近，可以透過調低可變電阻的電阻值以使驅動電壓增加，據此，可減少液晶透鏡100的等效焦距並藉以調整聚焦位置F。Next, proceeding to step S240, the voltage set value is calculated and loaded to adjust the focus position. In detail, if the viewing position of the user is farther than the known distance, the driving voltage can be reduced by increasing the resistance value of the variable resistor, thereby increasing the equivalent focal length of the liquid crystal lens 100 and adjusting the focus position F. . On the other hand, if the viewing position of the user is closer than the known distance, the driving voltage can be increased by lowering the resistance value of the variable resistor, whereby the equivalent focal length of the liquid crystal lens 100 can be reduced and the focus position F can be adjusted.
接著，進行步驟S250，將使用者的偵測人臉影像儲存為登錄人臉影像並且儲存其對應的電壓設定值。詳細而言，設定介面500可將使用者的偵側人臉影像的特徵儲存為登錄人臉影像的特徵，並且儲存其對應的電壓設定值。當同一使用者再次使用立體顯示裝置10時，辨識模組400可依據儲存的資料辨識出使用者的身分並載入其對應的電壓設定值，以達到智慧型3D顯示的功能。Then, in step S250, the user's detected face image is stored as a registered face image and its corresponding voltage setting value is stored. In detail, the setting interface 500 can store the feature of the user's detected face image as a feature of the registered face image and store its corresponding voltage setting value. When the same user uses the stereoscopic display device 10 again, the identification module 400 can recognize the user's identity according to the stored data and load its corresponding voltage setting value to achieve the function of the smart 3D display.
此外，在進行前述步驟S240之後，也可以選擇進行步驟S245，自行調整電壓設定值。詳細而言，若使用者想要進一步微調聚焦位置F時，使用者可以在設定介面500中自行調整電壓設定值，藉此調整液晶透鏡100的聚焦位置F。在微調之後，同樣地進行步驟S250，將使用者的偵測人臉影像儲存為登錄人臉影像並且儲存其對應的電壓設定值。換言之，設定介面500也可以儲存使用者微調後的電壓設定值，以讓同一使用者於下次使用立體顯示裝置10時，辨識模組400可依據儲存的資料辨識出使用者的身分後並載入其對應的電壓設定值，以達到智慧型3D顯示的功能。In addition, after performing the foregoing step S240, step S245 may also be selected to adjust the voltage setting value by itself. In detail, if the user wants to further finely adjust the focus position F, the user can adjust the voltage setting value in the setting interface 500, thereby adjusting the focus position F of the liquid crystal lens 100. After the fine adjustment, step S250 is similarly performed to store the detected face image of the user as the registered face image and store the corresponding voltage setting value. In other words, the setting interface 500 can also store the user's fine-tuned voltage setting value, so that the same user can recognize the user's identity according to the stored data when the stereoscopic display device 10 is used next time. Enter its corresponding voltage setting to achieve smart 3D displayFeatures.
圖7為本發明一實施例之電子裝置的方塊圖。請參照圖7，電子裝置1包括上述之立體顯示裝置10以及處理器20，其中處理器20控制上述之立體顯示裝置10輸出畫面。舉例而言，電子裝置1可以是電腦，其中立體顯示裝置10為可顯示2D畫面以及3D畫面的螢幕，而處理器20為主機。主機可以控制螢幕以使螢幕顯示特定畫面。當然，本發明不限於此。在其他實施例中，電子裝置1也可以是筆記型電腦或是其他具有立體顯示效果的電子裝置。FIG. 7 is a block diagram of an electronic device according to an embodiment of the present invention. Referring to FIG. 7, the electronic device 1 includes the above-described stereoscopic display device 10 and a processor 20, wherein the processor 20 controls the above-described stereoscopic display device 10 to output a screen. For example, the electronic device 1 may be a computer, wherein the stereoscopic display device 10 is a screen that can display a 2D picture and a 3D picture, and the processor 20 is a host. The host can control the screen to display a specific screen. Of course, the invention is not limited thereto. In other embodiments, the electronic device 1 can also be a notebook computer or other electronic device having a stereoscopic display effect.
綜上所述，本發明之立體顯示裝置的辨識模組可辨識不同的使用者並依不同使用者調整液晶透鏡的聚焦位置，因此可以對應不同的使用者調整其最佳觀賞距離。據此，滿足不同使用者對於良好的立體顯示效果的需求。In summary, the identification module of the stereoscopic display device of the present invention can recognize different users and adjust the focus position of the liquid crystal lens according to different users, so that the optimal viewing distance can be adjusted corresponding to different users. Accordingly, the demand for good stereoscopic display effects of different users is satisfied.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，當可作些許之更動與潤飾，故本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.
1‧‧‧電子裝置1‧‧‧Electronic device
10‧‧‧立體顯示裝置10‧‧‧ Stereoscopic display device
20‧‧‧處理器20‧‧‧ processor
100‧‧‧液晶透鏡100‧‧‧ liquid crystal lens
110‧‧‧第一基板110‧‧‧First substrate
112‧‧‧第一電極層112‧‧‧First electrode layer
114‧‧‧第一配向層114‧‧‧First alignment layer
120‧‧‧第二基板120‧‧‧second substrate
122‧‧‧第二電極層122‧‧‧Second electrode layer
122H‧‧‧開口122H‧‧‧ openings
124‧‧‧第二配向層124‧‧‧Second alignment layer
130‧‧‧液晶層130‧‧‧Liquid layer
132‧‧‧液晶分子132‧‧‧liquid crystal molecules
200‧‧‧顯示面板200‧‧‧ display panel
300‧‧‧驅動電路300‧‧‧ drive circuit
310‧‧‧微處理器310‧‧‧Microprocessor
320‧‧‧電壓調整單元320‧‧‧Voltage adjustment unit
330‧‧‧輸出單元330‧‧‧Output unit
400‧‧‧辨識模組400‧‧‧ Identification Module
410‧‧‧影像擷取單元410‧‧‧Image capture unit
420‧‧‧資料儲存單元420‧‧‧data storage unit
430‧‧‧人臉偵測單元430‧‧‧Face Detection Unit
440‧‧‧特徵比對單元440‧‧‧Characteristic comparison unit
500‧‧‧設定介面500‧‧‧Setting interface
F‧‧‧聚焦位置F‧‧‧ Focus position
L、L1‧‧‧顯示光線L, L1‧‧‧ shows light
S110、S120、S130、S140、S141、S142、S150‧‧‧步驟Steps S110, S120, S130, S140, S141, S142, S150‧‧
S210、S220、S230、S240、S245、S250‧‧‧步驟S210, S220, S230, S240, S245, S250‧‧ steps
V1‧‧‧第一電壓V1‧‧‧ first voltage
V2‧‧‧第二電壓V2‧‧‧second voltage
圖1為本發明一實施例之立體顯示裝置的剖面示意圖。1 is a cross-sectional view showing a stereoscopic display device according to an embodiment of the present invention.
圖2A為施加第一電壓至圖1之立體顯示裝置的剖面示意圖。2A is a schematic cross-sectional view showing the application of the first voltage to the stereoscopic display device of FIG. 1.
圖2B為施加第二電壓至圖1之立體顯示裝置的剖面示意圖。2B is a schematic cross-sectional view showing the application of the second voltage to the stereoscopic display device of FIG. 1.
圖3為本實施例之立體顯示裝置的方塊圖。3 is a block diagram of a stereoscopic display device of the embodiment.
圖4為驅動電路300的方塊圖。4 is a block diagram of the drive circuit 300.
圖5為本實施例之立體顯示裝置的驅動流程示意圖。FIG. 5 is a schematic diagram showing the driving process of the stereoscopic display device of the embodiment.
圖6為本實施例之立體顯示裝置使用設定介面的設定流程示意圖。FIG. 6 is a schematic flow chart showing the setting process of the setting interface using the stereoscopic display device of the embodiment.
圖7為本發明一實施例之電子裝置的方塊圖。FIG. 7 is a block diagram of an electronic device according to an embodiment of the present invention.
100‧‧‧液晶透鏡100‧‧‧ liquid crystal lens
200‧‧‧顯示面板200‧‧‧ display panel
300‧‧‧驅動電路300‧‧‧ drive circuit
400‧‧‧辨識模組400‧‧‧ Identification Module
410‧‧‧影像擷取單元410‧‧‧Image capture unit
420‧‧‧資料儲存單元420‧‧‧data storage unit
430‧‧‧人臉偵測單元430‧‧‧Face Detection Unit
440‧‧‧特徵比對單元440‧‧‧Characteristic comparison unit
500‧‧‧設定介面500‧‧‧Setting interface
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102100452ATWI508040B (en) | 2013-01-07 | 2013-01-07 | Stereoscopic display apparatus and electric apparatus thereof |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102100452ATWI508040B (en) | 2013-01-07 | 2013-01-07 | Stereoscopic display apparatus and electric apparatus thereof |
| Publication Number | Publication Date |
|---|---|
| TW201428712A TW201428712A (en) | 2014-07-16 |
| TWI508040Btrue TWI508040B (en) | 2015-11-11 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102100452ATWI508040B (en) | 2013-01-07 | 2013-01-07 | Stereoscopic display apparatus and electric apparatus thereof |
| Country | Link |
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| TW (1) | TWI508040B (en) |
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| TW200827771A (en)* | 2006-10-26 | 2008-07-01 | Seereal Technologies Sa | Compact three dimensional image display device |
| US20100073347A1 (en)* | 2008-09-24 | 2010-03-25 | Ayako Takagi | Stereoscopic image display apparatus |
| TW201234838A (en)* | 2010-06-24 | 2012-08-16 | Sony Corp | Stereoscopic display device and control method of stereoscopic display device |
| TW201222074A (en)* | 2010-11-16 | 2012-06-01 | Shenzhen Super Perfect Optics Ltd | Liquid crystal lens and its control method and 3D display device |
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| TW201428712A (en) | 2014-07-16 |
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| Date | Code | Title | Description |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |