TWI780834B - Anti-peep assembly for screen - Google Patents

Anti-peep assembly for screen Download PDF

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TWI780834B
TWI780834B TW110127300A TW110127300A TWI780834B TW I780834 B TWI780834 B TW I780834B TW 110127300 A TW110127300 A TW 110127300A TW 110127300 A TW110127300 A TW 110127300A TW I780834 B TWI780834 B TW I780834B
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light
haze
transmitting conductive
liquid crystal
conductive element
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TW202305459A (en
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呂志平
林金男
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希映顯示科技股份有限公司
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Abstract

An anti-peep assembly for a screen, includes: a grating structure and a haze-adjusting unit. The grating structure is disposed at a light-emitting side of a backlight device. The haze-adjusting unit has a light-receiving side conductive member, a light-emitting side conductive member and a haze-adjusting member. The light-receiving side conductive member is disposed at a light-emitting side of the grating structure. The light-receiving side conductive member and the light-emitting side conductive member are respectively disposed at a light-receiving side and a light-emitting side of the haze-adjusting member.

Description

用於螢幕的防窺組件Anti-spy component for screen

本發明相關於一種防窺組件，特別是相關於一種用於螢幕的防窺組件。The present invention relates to an anti-peeping component, in particular to an anti-peeping component for a screen.

液晶螢幕為以電流作用於液晶分子而藉此產生點、線、面等畫面構成要素。並且，液晶螢幕配合背光模組光線的投射而呈現出供使用者觀看的螢幕畫面。進一步而言，為了因應防窺的需求，現有的液晶螢幕透過控制液晶螢幕不同視角的亮度分布以阻止窺探者自液晶螢幕旁側的視角窺視螢幕畫面。Liquid crystal screens use current to act on liquid crystal molecules to generate screen elements such as dots, lines, and planes. Moreover, the liquid crystal screen cooperates with the light projection of the backlight module to present a screen image for the user to watch. Furthermore, in order to meet the requirement of anti-peeping, the existing liquid crystal screen prevents snoopers from peeping the screen image from the side view angle of the liquid crystal screen by controlling the brightness distribution of the liquid crystal screen at different viewing angles.

為了達成上述目的，外置型防窺片是一種擺置於螢幕最外表面，可達成正視角與大視角之間的亮度差異而達到防窺效果。然而，此方式仍須隨時攜帶與置放，而造成使用上的不便。為了解決方便操作性問題，另一種方式是面板本身利用電控方式即能達成動態防窺與否之目的；該架構是利用一具逆稜鏡組件產生的準直背光組件與及可切換霧與透的單元進行動態防窺，逆稜鏡產生的準直背光通常準直度不佳，因此防窺角度也會受限。In order to achieve the above purpose, the external anti-speech sheet is placed on the outermost surface of the screen, which can achieve the brightness difference between the normal viewing angle and the large viewing angle to achieve the anti-peeping effect. However, this method still needs to be carried and placed at any time, which causes inconvenience in use. In order to solve the problem of convenient operability, another way is that the panel itself can achieve the purpose of dynamic anti-peeping or not by electronic control; this structure uses a collimated backlight component generated by a reversed screen component and can switch between fog and The transparent unit is used for dynamic anti-peeping, and the collimated backlight generated by the backlight is usually not well collimated, so the anti-peeping angle is also limited.

因此，本發明的目的即在提供一種用於螢幕的防窺組件，可獲得準直光線，進一步搭配多穩態液晶形成的透與霧可切換單元，可節省電量耗用，且彈性地調整防窺狀態下的分享視角。Therefore, the object of the present invention is to provide an anti-peeping component for a screen, which can obtain collimated light, and is further equipped with a translucent and foggy switchable unit formed by a multi-stable liquid crystal, which can save power consumption and flexibly adjust the anti-peeping component. The shared perspective under the peeping state.

本發明為解決習知技術之問題所採用之技術手段係提供一種用於螢幕的防窺組件，係用於安裝在該螢幕的液晶面板與背光裝置之間，以使該螢幕成為防窺螢幕，該防窺組件包括：光柵結構，配置於該背光裝置的出光側，而使該背光裝置所提供的光線通過該光柵結構以形成準直光線；以及霧度調整單元，具有一受光透光導電元件、一出光透光導電元件、以及一霧度調整元件，該受光透光導電元件配置於該光柵結構的出光側而接受該準直光線，且該受光透光導電元件及該出光透光導電元件各別以配置於該霧度調整元件的入光側及出光側的方式而使該霧度調整元件設置於該受光透光導電元件及該出光透光導電元件之間，該霧度調整元件係至少包含液晶材料及聚合物材料，該液晶材料及該聚合物材料之間的選定組成比例係對應於一預設最大霧度值，其中該受光透光導電元件及該出光透光導電元件接收一控制訊號以改變該液晶材料的排列方向，而改變該準直光線通過該霧度調整單元的散射角度以調整該霧度調整單元的一調定霧度值，該調定霧度值對應於一畫面分享角度值且該調定霧度值係小於或等於該預設最大霧度值，該控制訊號係為一電壓且/或一頻率且/或一訊號波形，並且該出光透光導電元件的出光側配置對應於該液晶面板之入光側，以使該液晶面板接收經由該霧度調整單元之霧度調整後的出光，藉此使該液晶面板的螢幕畫面無法以大於該畫面分享角度值的角度進行窺視。The technical means adopted by the present invention to solve the problems of the prior art is to provide an anti-peeping component for a screen, which is used to be installed between the liquid crystal panel and the backlight device of the screen, so that the screen becomes an anti-peeping screen, The anti-peeping component includes: a grating structure, arranged on the light-emitting side of the backlight device, so that the light provided by the backlight device passes through the grating structure to form collimated light; and a haze adjustment unit, which has a light-receiving light-transmitting conductive element , a light-emitting light-transmitting conductive element, and a haze adjustment element, the light-receiving light-transmitting conductive element is arranged on the light-emitting side of the grating structure to receive the collimated light, and the light-receiving light-transmitting conductive element and the light-emitting light-transmitting conductive element The haze adjustment element is disposed between the light-receiving light-transmitting conductive element and the light-emitting light-transmitting conductive element in such a way that it is respectively arranged on the light incident side and the light output side of the haze adjustment element, and the haze adjustment element is At least comprising a liquid crystal material and a polymer material, the selected composition ratio between the liquid crystal material and the polymer material corresponds to a preset maximum haze value, wherein the light-receiving light-transmitting conductive element and the light-emitting light-transmitting conductive element receive a Control the signal to change the alignment direction of the liquid crystal material, and change the scattering angle of the collimated light passing through the haze adjustment unit to adjust a set haze value of the haze adjustment unit, and the set haze value corresponds to a The screen share angle value and the set haze value is less than or equal to the preset maximum haze value, the control signal is a voltage and/or a frequency and/or a signal waveform, and the light-emitting light-transmitting conductive element The light-emitting side is arranged corresponding to the light-incident side of the liquid crystal panel, so that the liquid crystal panel receives the light output after the haze adjustment of the haze adjustment unit, so that the screen image of the liquid crystal panel cannot be larger than the screen sharing angle value Peep from the angle.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該光柵結構形成於光線準直單元，該光線準直單元用於配置於該背光裝置的出光側，且該準直光線以垂直於該光線準直單元的出光側的方式自該光線準直單元出射，以及該受光透光導電元件配置於該光線準直單元的出光側而接受該準直光線。In one embodiment of the present invention, there is provided an anti-peeping component for a screen, wherein the grating structure is formed in a light collimation unit, and the light collimation unit is configured on the light exit side of the backlight device, and the collimation The light is emitted from the light collimating unit in a manner perpendicular to the light emitting side of the light collimating unit, and the light receiving and transmissive conductive element is arranged on the light emitting side of the light collimating unit to receive the collimated light.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該光柵結構形成於該霧度調整元件，該液晶材料與該聚合物材料係配置於相鄰的兩個該光柵結構之間，其中當該液晶材料的排列方向經改變而成為平行於該光柵結構之結構設置方向的單一方向時，該背光裝置所提供的光線在該光柵結構以及該液晶材料的引導下通過該霧度調整單元而形成該準直光線，以及當該液晶材料受影響而改變排列方向為相對於該光柵結構之結構設置方向傾斜時，該光線通過該霧度調整單元的散射角度經改變以調整該霧度調整單元的調定霧度值。In an embodiment of the present invention, a privacy-preventing component for a screen is provided, wherein the grating structure is formed on the haze adjusting element, and the liquid crystal material and the polymer material are disposed on two adjacent grating structures Among them, when the alignment direction of the liquid crystal material is changed to become a single direction parallel to the structural arrangement direction of the grating structure, the light provided by the backlight device passes through the fog under the guidance of the grating structure and the liquid crystal material The haze adjustment unit forms the collimated light, and when the liquid crystal material is affected and changes the alignment direction to be inclined relative to the structural arrangement direction of the grating structure, the scattering angle of the light passing through the haze adjustment unit is changed to adjust the haze adjustment unit. The set haze value of the haze adjustment unit.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該背光裝置為準直光源單元或一般光源單元。An embodiment of the present invention provides an anti-peeping component for a screen, wherein the backlight device is a collimated light source unit or a general light source unit.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該霧度調整元件的液晶材料為向列型液晶。An embodiment of the present invention provides a privacy-preventing component for a screen, wherein the liquid crystal material of the haze adjusting element is nematic liquid crystal.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該霧度調整元件的液晶材料為多穩態液晶。An embodiment of the present invention provides a privacy-preventing component for a screen, wherein the liquid crystal material of the haze adjusting element is a multi-stable liquid crystal.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該霧度調整元件的液晶材料為多穩態液晶，該控制訊號係以非恆久性方式施加至該受光透光導電元件及該出光透光導電元件以調整該霧度調整單元的調定霧度值，該控制訊號係根據外部操作按鍵而傳送至該霧度調整單元，在該控制訊號停止施加後，該多穩態液晶保持排列方向，而該霧度調整單元維持在該調定霧度值。In one embodiment of the present invention, there is provided an anti-peeping component for a screen, wherein the liquid crystal material of the haze adjustment element is a multi-stable liquid crystal, and the control signal is applied to the light-receiving light-transmitting conductive The element and the light-emitting and light-transmitting conductive element are used to adjust the set haze value of the haze adjustment unit. The control signal is transmitted to the haze adjustment unit according to the external operation button. After the control signal is stopped, the multi-stable The state liquid crystal maintains the alignment direction, and the haze adjustment unit maintains the set haze value.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該霧度調整單元的受光透光導電元件以及該出光透光導電元件皆為透明，該受光透光導電元件以及該出光透光導電元件為各自具有透光基材以及設置於該透光基材上的透光導電層，且該受光透光導電元件以及該出光透光導電元件各自為透光導電薄膜或透光導電玻璃。In one embodiment of the present invention, a privacy-preventing component for a screen is provided, wherein the light-receiving and light-transmitting conductive element of the haze adjustment unit and the light-emitting and light-transmitting conductive element are both transparent, and the light-receiving and light-transmitting conductive element and the light-receiving and light-transmitting conductive element are transparent. The light-emitting and light-transmitting conductive elements each have a light-transmitting substrate and a light-transmitting conductive layer disposed on the light-transmitting substrate, and the light-receiving and light-transmitting conductive elements and the light-emitting and light-transmitting conductive elements are respectively light-transmitting conductive films or light-transmitting conductive glass.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該霧度調整元件的聚合物材料為紫外線硬化膠、壓克力膠、感壓膠或熱固化膠。In an embodiment of the present invention, there is provided an anti-peeping component for a screen, wherein the polymer material of the haze adjusting element is UV curable glue, acrylic glue, pressure sensitive glue or thermosetting glue.

在本發明的一實施例中係提供一種用於螢幕的防窺組件，其中該受光透光導電元件及該出光透光導電元件之間具有選定間隙，該選定間隙正比於該預設最大霧度值，而由該選定間隙及該選定組成比例決定該預設最大霧度值。In one embodiment of the present invention, there is provided an anti-peeping component for a screen, wherein there is a selected gap between the light-receiving light-transmitting conductive element and the light-emitting light-transmitting conductive element, and the selected gap is proportional to the preset maximum haze value, and the preset maximum haze value is determined by the selected gap and the selected composition ratio.

以下根據第1圖至第9圖，而說明本發明的實施方式。該說明並非為限制本發明的實施方式，而為本發明之實施例的一種。Embodiments of the present invention will be described below based on FIGS. 1 to 9 . This description is not intended to limit the implementation of the present invention, but is one of the examples of the present invention.

如第1圖以及第7圖所示，依據本發明的一實施例的一種用於螢幕的防窺組件100，係用於安裝在該螢幕的液晶面板P與背光裝置1之間，以使該螢幕成為防窺螢幕。該防窺組件100包括：光柵結構21以及霧度調整單元3。光柵結構21配置於該背光裝置1的出光側，而使該背光裝置1所提供的光線A通過該光柵結構21以形成準直光線L。As shown in Fig. 1 and Fig. 7, a peep-proof assembly 100 for a screen according to an embodiment of the present invention is used to be installed between the liquid crystal panel P and the backlight device 1 of the screen, so that the The screen becomes a privacy screen. The anti-peeping component 100 includes: a grating structure 21 and a haze adjusting unit 3 . The grating structure 21 is disposed on the light emitting side of the backlight device 1 , so that the light A provided by the backlight device 1 passes through the grating structure 21 to form a collimated light L.

如第1圖以及第2圖所示，光線準直單元2具有光柵結構21，該光柵結構21形成於該光線準直單元2。該光線準直單元2用於配置於該背光裝置1的出光側，而使該背光裝置1所提供的光線A通過該光柵結構21以形成準直光線L。並且，該準直光線L以垂直於該光線準直單元2的出光側的方式自該光線準直單元2出射。As shown in FIG. 1 and FIG. 2 , the light collimating unit 2 has a grating structure 21 formed on the light collimating unit 2 . The light collimating unit 2 is configured on the light emitting side of the backlight device 1 , so that the light A provided by the backlight device 1 passes through the grating structure 21 to form collimated light L. Moreover, the collimated light L is emitted from the light collimating unit 2 in a manner perpendicular to the light emitting side of the light collimating unit 2 .

如第3圖以及第4圖所示，依據本發明的一實施例的用於螢幕的防窺組件100，其中該背光裝置1為準直光源單元1A或一般光源單元1B。具體而言，如第3圖所示，當該背光裝置1為準直光源單元1A時，該背光裝置1提供準直射向的光線A，且該準直射向的光線A通過該光線準直單元2的光柵結構21以形成準直程度較佳的該準直光線L。如第4圖所示，當該背光裝置1為一般光源單元1B時，該背光裝置1提供投射方向略為紊亂的光線A（發散的光線將使初始相鄰的兩條光線經傳播後而距離彼此越來越遠），投射方向略為紊亂的該光線A通過該光線準直單元2的光柵結構21即可形成該準直光線L。As shown in FIG. 3 and FIG. 4 , according to an embodiment of the present invention, the privacy protection assembly 100 for a screen, wherein the backlight device 1 is a collimated light source unit 1A or a general light source unit 1B. Specifically, as shown in FIG. 3, when the backlight device 1 is a collimated light source unit 1A, the backlight device 1 provides collimated light A, and the collimated light A passes through the light collimation unit 2 grating structure 21 to form the collimated light L with a better degree of collimation. As shown in FIG. 4, when the backlight device 1 is a general light source unit 1B, the backlight device 1 provides light A with a slightly disordered projection direction (divergent light will make two initially adjacent light rays travel farther away from each other) farther and farther away), the light A with a slightly disordered projection direction passes through the grating structure 21 of the light collimation unit 2 to form the collimated light L.

如第1圖、第5圖以及第6圖所示，該霧度調整單元3具有一受光透光導電元件31、一出光透光導電元件32、以及一霧度調整元件33。該受光透光導電元件31配置於該光柵結構21的出光側而接受該準直光線L（具體而言，該受光透光導電元件31是配置於該光線準直單元2的出光側）。並且，該受光透光導電元件31及該出光透光導電元件32各別以配置於該霧度調整元件33的入光側及出光側的方式，而使該霧度調整元件33設置於該受光透光導電元件31及該出光透光導電元件32之間。As shown in FIG. 1 , FIG. 5 and FIG. 6 , the haze adjustment unit 3 has a light-receiving and light-transmitting conductive element 31 , a light-emitting and light-transmitting conductive element 32 , and a haze adjusting element 33 . The light-receiving and light-transmitting conductive element 31 is arranged on the light-emitting side of the grating structure 21 to receive the collimated light L (specifically, the light-receiving and light-transmitting conductive element 31 is arranged on the light-emitting side of the light collimating unit 2 ). Moreover, the light-receiving light-transmitting conductive element 31 and the light-emitting light-transmitting conductive element 32 are arranged on the light incident side and the light emitting side of the haze adjusting element 33 respectively, so that the haze adjusting element 33 is arranged on the light receiving side. Between the light-transmitting conductive element 31 and the light-emitting light-transmitting conductive element 32 .

依據本發明的一實施例的用於螢幕的防窺組件100，其中該受光透光導電元件31以及該出光透光導電元件32為各自具有透光基材以及設置於該透光基材上的透光導電層。舉例而言，該受光透明導電元件31為透明導電薄膜（Transparent conductive film）且該出光透明導電元件32也為透明導電薄膜；或者，該受光透明導電元件31為透明導電玻璃（Transparent conductive glass）且該出光透明導電元件32也為透明導電玻璃。According to an embodiment of the present invention, the anti-peeping component 100 for a screen, wherein the light-receiving light-transmitting conductive element 31 and the light-emitting light-transmitting conductive element 32 each have a light-transmitting substrate and are arranged on the light-transmitting substrate. Light-transmitting conductive layer. For example, the light-receiving transparent conductive element 31 is a transparent conductive film (Transparent conductive film) and the light-emitting transparent conductive element 32 is also a transparent conductive film; or, the light-receiving transparent conductive element 31 is transparent conductive glass (Transparent conductive glass) and The light emitting transparent conductive element 32 is also transparent conductive glass.

如第5圖至第7圖所示，該霧度調整元件33係至少包含液晶材料及聚合物材料。該液晶材料及該聚合物材料之間的選定組成比例係對應於一預設最大霧度值。該受光透光導電元件31及該出光透光導電元件32接收一控制訊號S以改變該液晶材料的排列方向，而改變該準直光線L通過該霧度調整單元3的散射角度以調整該霧度調整單元3的一調定霧度值。該調定霧度值對應於一畫面分享角度值（E1或E2）且該調定霧度值係小於或等於該預設最大霧度值（舉例而言，該預設最大霧度值為85%，則經該控制訊號S調整的該調定霧度值的範圍為65%至85%）。具體而言，該控制訊號S係為一電壓且/或一頻率且/或一訊號波形。As shown in FIG. 5 to FIG. 7, the haze adjustment element 33 includes at least liquid crystal material and polymer material. The selected composition ratio between the liquid crystal material and the polymer material corresponds to a predetermined maximum haze value. The light-receiving light-transmitting conductive element 31 and the light-emitting light-transmitting conductive element 32 receive a control signal S to change the alignment direction of the liquid crystal material, and change the scattering angle of the collimated light L passing through the haze adjustment unit 3 to adjust the haze A set haze value of the degree adjustment unit 3. The set haze value corresponds to a screen sharing angle value (E1 or E2) and the set haze value is less than or equal to the preset maximum haze value (for example, the preset maximum haze value is 85 %, the range of the set haze value adjusted by the control signal S is 65% to 85%). Specifically, the control signal S is a voltage and/or a frequency and/or a signal waveform.

舉例而言，若該液晶材料佔該霧度調整元件33整體比例的75%（換句話說，該聚合物材料佔該霧度調整元件33整體比例的25%），則該預設最大霧度值為85%。若該液晶材料佔該霧度調整元件33整體比例的65%（也就是說，該聚合物材料佔該霧度調整元件33整體比例的35%），則該預設最大霧度值為50%。For example, if the liquid crystal material accounts for 75% of the overall proportion of the haze adjustment element 33 (in other words, the polymer material accounts for 25% of the overall proportion of the haze adjustment element 33), the preset maximum haze The value is 85%. If the liquid crystal material accounts for 65% of the overall proportion of the haze adjustment element 33 (that is, the polymer material accounts for 35% of the overall proportion of the haze adjustment element 33), then the preset maximum haze value is 50%. .

詳細而言，如第1圖以及第5圖所示，該控制訊號S改變該液晶材料的排列方向以調整該霧度調整單元3至一調定霧度值，從而使該霧度調整單元3呈現出對應於該調定霧度值的畫面分享角度值E1（換句話說，該光線L通過該霧度調整單元3後的散射角度對應於該畫面分享角度值E1的角度，且在該畫面分享角度值E1角度以外的區域，光線的強度為相對弱而致使人眼難以辨識螢幕畫面上的圖像）。並且，如第1圖以及第6圖所示，施加另一控制訊號S改變該液晶材料的排列方向以調整該霧度調整單元3至另一調定霧度值，從而使該霧度調整單元3呈現出對應於該另一調定霧度值的畫面分享角度值E2的角度（也就是說，該光線L通過該霧度調整單元3後的散射角度對應於該畫面分享角度值E2的角度，且在該畫面分享角度值E2的角度以外的區域，光線的強度為相對弱而致使人眼難以辨識螢幕畫面上的圖像）。In detail, as shown in FIG. 1 and FIG. 5, the control signal S changes the alignment direction of the liquid crystal material to adjust the haze adjustment unit 3 to a set haze value, so that the haze adjustment unit 3 Presents the screen sharing angle value E1 corresponding to the set haze value (in other words, the scattering angle of the light L after passing through the haze adjustment unit 3 corresponds to the screen sharing angle value E1, and in the screen In areas other than the shared angle value E1, the intensity of the light is relatively weak, which makes it difficult for the human eye to recognize the image on the screen). And, as shown in Figure 1 and Figure 6, another control signal S is applied to change the alignment direction of the liquid crystal material to adjust the haze adjustment unit 3 to another set haze value, so that the haze adjustment unit 3 presents an angle corresponding to the screen sharing angle value E2 of the other set haze value (that is, the scattering angle of the light L after passing through the haze adjustment unit 3 corresponds to the angle of the screen sharing angle value E2 , and in areas other than the angle of the screen sharing angle value E2, the intensity of the light is relatively weak, making it difficult for human eyes to recognize the image on the screen).

如第1圖以及第7圖所示，該出光透光導電元件32的出光側配置對應於該液晶面板P之入光側，以使該液晶面板P接收經由該霧度調整單元3之霧度調整後的出光。藉此，本發明使該液晶面板P的螢幕畫面無法以大於該畫面分享角度值的角度進行窺視。具體而言，觀視者P1位在該用於螢幕的防窺組件100的正前方正視該液晶面板P而得以見到該螢幕畫面；並且，觀視者P3位在該畫面分享角度值E1的範圍內而能夠以一傾斜於該液晶面板P的視角分享觀看該螢幕畫面。相對之下，觀視者P2位在該畫面分享角度值E1的範圍以外而無法以另一傾斜於該液晶面板P的視角分享觀看該螢幕畫面。As shown in Figure 1 and Figure 7, the light-emitting side of the light-emitting light-transmitting conductive element 32 is arranged to correspond to the light-incident side of the liquid crystal panel P, so that the liquid crystal panel P receives the haze passing through the haze adjustment unit 3 Adjusted light output. Thereby, the present invention prevents the screen picture of the liquid crystal panel P from being peeped at an angle larger than the picture sharing angle value. Specifically, the viewer P1 is at the front of the anti-peeping component 100 for the screen and is facing the liquid crystal panel P so as to see the screen image; and the viewer P3 is at the screen sharing angle value E1 In this range, the screen image can be shared and watched at a viewing angle inclined to the liquid crystal panel P. In contrast, the viewer P2 is outside the range of the image sharing angle value E1 and cannot share and watch the screen image at another viewing angle inclined to the liquid crystal panel P.

如第1圖所示，依據本發明的一實施例的用於螢幕的防窺組件100，其中該受光透光導電元件31及該出光透光導電元件32之間具有選定間隙。該選定間隙正比於該預設最大霧度值，而由該選定間隙及該選定組成比例決定該預設最大霧度值。也就是說，當該選定間隙的尺寸增加，則該預設最大霧度值亦會增加；反之，當該選定間隙的尺寸縮減，則該預設最大霧度值將相對應地降低。As shown in FIG. 1 , according to an embodiment of the present invention, there is a selected gap between the light-receiving light-transmitting conductive element 31 and the light-emitting light-transmitting conductive element 32 in the anti-peeping component 100 for a screen according to an embodiment of the present invention. The selected gap is proportional to the preset maximum haze value, and the preset maximum haze value is determined by the selected gap and the selected composition ratio. That is to say, when the size of the selected gap increases, the preset maximum haze value will also increase; conversely, when the size of the selected gap decreases, the preset maximum haze value will correspondingly decrease.

依據本發明的一實施例的用於螢幕的防窺組件100，其中該控制訊號S係根據外部操作按鍵而傳送至該霧度調整單元3。具體而言，該外部操作按鍵為電腦或筆記型電腦之鍵盤上的按鍵、或者是觸控螢幕上的操作界面，故經使用者敲擊該外部操作按鍵即傳送該控制訊號S至該霧度調整單元3。In the anti-peeping component 100 for a screen according to an embodiment of the present invention, the control signal S is transmitted to the haze adjustment unit 3 according to an external operation button. Specifically, the external operation button is a button on the keyboard of a computer or a notebook computer, or an operation interface on a touch screen, so when the user taps the external operation button, the control signal S is sent to the haze Adjust unit 3.

依據本發明的一實施例的用於螢幕的防窺組件100，其中該霧度調整元件33的液晶材料為多穩態液晶（MSLC，Multiple Stability Liquid Crystal）。當然，本發明對於該霧度調整元件33的液晶材料並不以上述為限，該液晶材料也可為向列型液晶（Nematic）。According to the anti-peeping component 100 for a screen according to an embodiment of the present invention, the liquid crystal material of the haze adjustment element 33 is a multiple stability liquid crystal (MSLC, Multiple Stability Liquid Crystal). Of course, the liquid crystal material of the haze adjusting element 33 in the present invention is not limited to the above, and the liquid crystal material can also be nematic liquid crystal (Nematic).

依據本發明的一實施例的用於螢幕的防窺組件100，其中當該霧度調整元件33的液晶材料為多穩態液晶時，該控制訊號S係以非恆久性方式施加至該受光透光導電元件31及該出光透光導電元件32以調整該霧度調整單元3的調定霧度值。並且，在該控制訊號停止施加後，該多穩態液晶保持排列方向，而該霧度調整單元3維持在該調定霧度值。也就是說，本發明無需持續提供電流（或電壓）  予至該受光透明導電元件31及該出光透明導電元件32以保持該多穩態液晶的排列方向（以維持同樣的該調定霧度值），故本發明得以節省顯示裝置用電的能源。According to the anti-peeping component 100 for a screen according to an embodiment of the present invention, when the liquid crystal material of the haze adjustment element 33 is a multi-stable liquid crystal, the control signal S is applied to the light-receiving transparent element in a non-permanent manner. The photoconductive element 31 and the light-emitting light-transmitting conductive element 32 are used to adjust the preset haze value of the haze adjustment unit 3 . Moreover, after the control signal is stopped, the multi-stable liquid crystal maintains the alignment direction, and the haze adjustment unit 3 maintains the set haze value. That is to say, the present invention does not need to continuously provide current (or voltage) to the light-receiving transparent conductive element 31 and the light-emitting transparent conductive element 32 to maintain the alignment direction of the multi-stable liquid crystal (to maintain the same set haze value ), so the present invention can save the power consumption energy of the display device.

依據本發明的一實施例的用於螢幕的防窺組件100，其中該霧度調整單元3的受光透光導電元件31以及該出光透光導電元件32皆為透明。In the anti-peeping component 100 for a screen according to an embodiment of the present invention, the light-receiving and light-transmitting conductive element 31 of the haze adjustment unit 3 and the light-emitting and light-transmitting conductive element 32 are both transparent.

依據本發明的一實施例的用於螢幕的防窺組件100，其中該霧度調整元件33的聚合物材料為紫外線硬化膠、壓克力膠、感壓膠或熱固化膠。According to the anti-peeping component 100 for a screen according to an embodiment of the present invention, the polymer material of the haze adjustment element 33 is ultraviolet curable glue, acrylic glue, pressure sensitive glue or thermosetting glue.

由上述可知，在本發明的用於螢幕的防窺組件100，透過該光線準直單元2的光柵結構21以獲得該準直光線L。進一步而言，本發明藉由該霧度調整元件33的液晶材料（多穩態液晶），該控制訊號S得以非恆久性方式施加至該受光透明導電元件31及該出光透明導電元件32而保持該液晶材料的排列方向（以維持同樣的該調定霧度值），從而節省該用於螢幕的防窺組件100在操作上的電量耗用。並且，本發明藉由調整該受光透明導電元件31及該出光透明導電元件32之間的選定間隙、該液晶材料及該聚合物材料之間的選定組成比例或該控制訊號S（改變該液晶材料的排列方向以調整該霧度調整單元3的調定霧度值），而可彈性地調整該液晶面板P的螢幕畫面在防窺狀態下的分享視角。It can be known from the above that, in the anti-peeping component 100 for a screen of the present invention, the collimated light L is obtained through the grating structure 21 of the light collimating unit 2 . Further, the present invention uses the liquid crystal material (multi-stable liquid crystal) of the haze adjustment element 33, the control signal S can be applied to the light-receiving transparent conductive element 31 and the light-emitting transparent conductive element 32 in a non-permanent manner to maintain The alignment direction of the liquid crystal material (to maintain the same set haze value), thereby saving the power consumption in operation of the anti-peeping component 100 for the screen. Moreover, the present invention adjusts the selected gap between the light-receiving transparent conductive element 31 and the light-emitting transparent conductive element 32, the selected composition ratio between the liquid crystal material and the polymer material, or the control signal S (changing the liquid crystal material The alignment direction of the haze adjustment unit 3 can be adjusted to adjust the set haze value), so as to flexibly adjust the sharing viewing angle of the screen image of the liquid crystal panel P in the anti-peeping state.

於本發明的實施例，該光柵結構的結構配置並不以上述為限。如第8圖、第9圖所示，該霧度調整單元3A的霧度調整元件33A設置於該受光透光導電元件31及該出光透光導電元件32之間；但是，該霧度調整單元3A與前述的霧度調整單元3之間的差異在於，該霧度調整元件33A更具有光柵結構331A（該光柵結構331A形成於該霧度調整元件33A），且該液晶材料33L與該聚合物材料係配置於相鄰的兩個該光柵結構331A之間。如第8圖所示，當該液晶材料33L的排列方向經由該受光透光導電元件31及該出光透光導電元件32改變而成為平行於該光柵結構331A之結構設置方向的單一方向時，光線A在該光柵結構331A以及該液晶材料33L的引導下通過該霧度調整單元3A而形成該準直光線L。如第9圖所示，當該液晶材料33L受該受光透光導電元件31及該出光透光導電元件32影響而改變排列方向為相對於該光柵結構331A之結構設置方向傾斜時，該光線A通過該霧度調整單元3A的散射角度經改變以調整該霧度調整單元3A的調定霧度值而呈現出該畫面分享角度值E1。In the embodiment of the present invention, the structural configuration of the grating structure is not limited to the above. As shown in Figures 8 and 9, the haze adjustment element 33A of the haze adjustment unit 3A is disposed between the light-receiving and light-transmitting conductive element 31 and the light-emitting and light-transmitting conductive element 32; however, the haze adjustment unit The difference between 3A and the aforementioned haze adjustment unit 3 is that the haze adjustment element 33A further has a grating structure 331A (the grating structure 331A is formed on the haze adjustment element 33A), and the liquid crystal material 33L and the polymer The material system is disposed between two adjacent grating structures 331A. As shown in FIG. 8, when the alignment direction of the liquid crystal material 33L is changed through the light-receiving and light-transmitting conductive element 31 and the light-emitting and light-transmitting conductive element 32 to become a single direction parallel to the structural arrangement direction of the grating structure 331A, light rays A passes through the haze adjustment unit 3A under the guidance of the grating structure 331A and the liquid crystal material 33L to form the collimated light L. As shown in FIG. 9, when the liquid crystal material 33L is affected by the light-receiving light-transmitting conductive element 31 and the light-emitting light-transmitting conductive element 32 and changes its arrangement direction to be inclined relative to the structural arrangement direction of the grating structure 331A, the light A The scattering angle of the haze adjustment unit 3A is changed to adjust the set haze value of the haze adjustment unit 3A to present the frame sharing angle value E1.

以上之敘述以及說明僅為本發明之較佳實施例之說明，對於此項技術具有通常知識者當可依據以下所界定申請專利範圍以及上述之說明而作其他之修改，惟此些修改仍應是為本發明之發明精神而在本發明之權利範圍中。The above descriptions and descriptions are only descriptions of the preferred embodiments of the present invention. Those who have common knowledge of this technology may make other modifications according to the scope of the patent application defined below and the above descriptions, but these modifications should still be It is for the inventive spirit of the present invention and within the scope of rights of the present invention.

100:用於螢幕的防窺組件 1:背光裝置 1A:準直光源單元 1B:一般光源單元 2:光線準直單元 21:光柵結構 3:霧度調整單元 3A:霧度調整單元 31:受光透光導電元件 32:出光透光導電元件 33:霧度調整元件 33A:霧度調整元件 33L:液晶材料 331A:光柵結構 A:光線 E1:畫面分享角度值 E2:畫面分享角度值 L:準直光線 P:液晶面板 S:控制訊號 100: Anti-peeping components for screens 1: Backlight device 1A: Collimated light source unit 1B: General light source unit 2: Light collimation unit 21: grating structure 3: Haze adjustment unit 3A: Haze adjustment unit 31: Light-receiving and light-transmitting conductive element 32: Light-emitting and transparent conductive elements 33: Haze adjustment element 33A: Haze adjustment element 33L: liquid crystal material 331A: grating structure A: light E1: screen sharing angle value E2: screen sharing angle value L: collimated light P: LCD panel S: Control signal

［第1圖］為顯示根據本發明的一實施例的用於螢幕的防窺組件的示意圖； ［第2圖］為顯示根據本發明實施例的用於螢幕的防窺組件的光線準直單元的示意圖； ［第3圖］為顯示根據本發明實施例的用於螢幕的防窺組件的光線準直單元配合背光裝置的示意圖； ［第4圖］為顯示根據本發明實施例的用於螢幕的防窺組件的光線準直單元配合另一背光裝置的示意圖； ［第5圖］為顯示根據本發明實施例的用於螢幕的防窺組件的霧度調整單元因應控制訊號形成畫面分享角度的示意圖； ［第6圖］為顯示根據本發明實施例的用於螢幕的防窺組件的霧度調整單元因應另一控制訊號形成畫面分享角度的示意圖； ［第7圖］為顯示根據本發明實施例的用於螢幕的防窺組件進行畫面分享與防窺的示意圖； ［第8圖］為顯示根據本發明實施例的用於螢幕的防窺組件的另一霧度調整單元的示意圖；以及 ［第9圖］為顯示根據本發明實施例的用於螢幕的防窺組件的另一霧度調整單元形成畫面分享角度的示意圖。 [Fig. 1] is a schematic diagram showing a privacy-preventing component for a screen according to an embodiment of the present invention; [Fig. 2] is a schematic diagram showing a light collimation unit of a privacy-preventing component for a screen according to an embodiment of the present invention; [Fig. 3] is a schematic diagram showing the light collimation unit and the backlight device of the anti-peeping component for the screen according to the embodiment of the present invention; [Fig. 4] is a schematic diagram showing the light collimation unit of the anti-peeping component used in the screen and another backlight device according to the embodiment of the present invention; [FIG. 5] is a schematic diagram showing the screen sharing angle formed by the haze adjustment unit of the anti-peeping component for the screen according to the control signal according to the embodiment of the present invention; [FIG. 6] is a schematic diagram showing the screen sharing angle formed by the haze adjustment unit of the anti-peeping component for the screen according to another control signal according to an embodiment of the present invention; [Fig. 7] is a schematic diagram showing the screen sharing and privacy protection of the anti-peeping component for the screen according to the embodiment of the present invention; [FIG. 8] is a schematic diagram showing another haze adjustment unit of a privacy-preventing component for a screen according to an embodiment of the present invention; and [FIG. 9] is a schematic diagram showing another haze adjustment unit of the anti-peeping component for a screen according to an embodiment of the present invention to form a screen sharing angle.

100:用於螢幕的防窺組件 100: Anti-peeping components for screens

1:背光裝置 1: Backlight device

2:光線準直單元 2: Light collimation unit

3:霧度調整單元 3: Haze adjustment unit

31:受光透光導電元件 31: Light-receiving and light-transmitting conductive element

32:出光透光導電元件 32: Light-emitting and transparent conductive elements

33:霧度調整元件 33: Haze adjustment element

L:準直光線 L: collimated light

P:液晶面板 P: LCD panel

Claims (10)

一種用於螢幕的防窺組件，係用於安裝在該螢幕的液晶面板與背光裝置之間，以使該螢幕成為防窺螢幕，該防窺組件包括：光柵結構，配置於該背光裝置的出光側，而使該背光裝置所提供的光線通過該光柵結構以形成準直光線；以及霧度調整單元，具有一受光透光導電元件、一出光透光導電元件、以及一霧度調整元件，該受光透光導電元件配置於該光柵結構的出光側而接受該準直光線，且該受光透光導電元件及該出光透光導電元件各別以相鄰配置於該霧度調整元件的入光側及出光側的方式而使該霧度調整元件設置於該受光透光導電元件及該出光透光導電元件之間，該霧度調整元件係至少包含液晶材料及聚合物材料，該液晶材料及該聚合物材料之間的選定組成比例係對應於一預設最大霧度值，其中該受光透光導電元件及該出光透光導電元件接收一控制訊號以改變該液晶材料的排列方向，而改變該準直光線通過該霧度調整單元的散射角度以調整該霧度調整單元的一調定霧度值，該調定霧度值對應於一畫面分享角度值且該調定霧度值係小於或等於該預設最大霧度值，該控制訊號係為一電壓且/或一頻率且/或一訊號波形，並且該出光透光導電元件的出光側配置對應於該液晶面板之入光側，以使該液晶面板接收經由該霧度調整單元之霧度調整後的出光，藉此使該液晶面板的螢幕畫面無法以大於該畫面分享角度值的角度進行窺視。 An anti-peeping component for a screen, which is installed between a liquid crystal panel and a backlight device of the screen, so that the screen becomes an anti-peeping screen. side, so that the light provided by the backlight device passes through the grating structure to form collimated light; and the haze adjustment unit has a light-receiving light-transmitting conductive element, a light-emitting light-transmitting conductive element, and a haze adjusting element. The light-receiving and light-transmitting conductive element is arranged on the light-emitting side of the grating structure to receive the collimated light, and the light-receiving and light-transmitting conductive element and the light-emitting and light-transmitting conductive element are respectively arranged adjacent to the light-incident side of the haze adjustment element and the light-emitting side, so that the haze adjustment element is arranged between the light-receiving light-transmitting conductive element and the light-emitting light-transmitting conductive element, the haze adjusting element is at least composed of a liquid crystal material and a polymer material, the liquid crystal material and the The selected composition ratio between the polymer materials corresponds to a preset maximum haze value, wherein the light-receiving light-transmitting conductive element and the light-emitting light-transmitting conductive element receive a control signal to change the alignment direction of the liquid crystal material, thereby changing the The collimated light passes through the scattering angle of the haze adjustment unit to adjust a set haze value of the haze adjustment unit, the set haze value corresponds to a screen sharing angle value and the set haze value is less than or Equal to the preset maximum haze value, the control signal is a voltage and/or a frequency and/or a signal waveform, and the light-emitting side of the light-emitting light-transmitting conductive element is configured to correspond to the light-incident side of the liquid crystal panel, so that The liquid crystal panel receives the light output after the haze adjustment by the haze adjustment unit, so that the screen image of the liquid crystal panel cannot be peeped at an angle larger than the screen sharing angle value. 如請求項1所述之用於螢幕的防窺組件，其中該光柵結構形成於光線準直單元，該光線準直單元用於配置於該背光裝置的出光側，且該準直光 線以垂直於該光線準直單元的出光側的方式自該光線準直單元出射，以及該受光透光導電元件配置於該光線準直單元的出光側而接受該準直光線。 The anti-peeping component for screen according to claim 1, wherein the grating structure is formed in a light collimating unit, the light collimating unit is configured on the light emitting side of the backlight device, and the collimated light The line exits from the light collimating unit in a manner perpendicular to the light emitting side of the light collimating unit, and the light receiving and transmissive conductive element is arranged on the light emitting side of the light collimating unit to receive the collimated light. 如請求項1所述之用於螢幕的防窺組件，其中該光柵結構形成於該霧度調整元件，該液晶材料與該聚合物材料係配置於相鄰的兩個該光柵結構之間，其中當該液晶材料的排列方向經改變而成為平行於該光柵結構之結構設置方向的單一方向時，該背光裝置所提供的光線在該光柵結構以及該液晶材料的引導下通過該霧度調整單元而形成該準直光線，以及當該液晶材料受影響而改變排列方向為相對於該光柵結構之結構設置方向傾斜時，該光線通過該霧度調整單元的散射角度經改變以調整該霧度調整單元的調定霧度值。 The anti-peeping component for a screen as claimed in claim 1, wherein the grating structure is formed on the haze adjustment element, and the liquid crystal material and the polymer material are arranged between two adjacent grating structures, wherein When the alignment direction of the liquid crystal material is changed to become a single direction parallel to the structural arrangement direction of the grating structure, the light provided by the backlight device passes through the haze adjustment unit under the guidance of the grating structure and the liquid crystal material. forming the collimated light, and when the liquid crystal material is affected to change the alignment direction to be inclined relative to the structural arrangement direction of the grating structure, the scattering angle of the light passing through the haze adjustment unit is changed to adjust the haze adjustment unit The set haze value. 如請求項1至3中任一項所述之用於螢幕的防窺組件，其中該背光裝置為準直光源單元或一般光源單元。 The anti-peeping component for a screen according to any one of Claims 1 to 3, wherein the backlight device is a collimated light source unit or a general light source unit. 如請求項1至3中任一項所述之用於螢幕的防窺組件，其中該霧度調整元件的液晶材料為向列型液晶。 The anti-peeping component for a screen according to any one of Claims 1 to 3, wherein the liquid crystal material of the haze adjustment element is a nematic liquid crystal. 如請求項1至3中任一項所述之用於螢幕的防窺組件，其中該霧度調整元件的液晶材料為多穩態液晶。 The anti-peeping component for a screen according to any one of Claims 1 to 3, wherein the liquid crystal material of the haze adjustment element is a multistable liquid crystal. 如請求項6所述之用於螢幕的防窺組件，其中該控制訊號係以非恆久性方式施加至該受光透光導電元件及該出光透光導電元件以調整該霧度調整單元的調定霧度值，該控制訊號係根據外部操作按鍵而傳送至該霧度調整單元，在該控制訊號停止施加後，該多穩態液晶保持排列方向，而該霧度調整單元維持在該調定霧度值。 The anti-peeping component for a screen according to claim 6, wherein the control signal is applied to the light-receiving light-transmitting conductive element and the light-emitting light-transmitting conductive element in a non-permanent manner to adjust the setting of the haze adjustment unit Haze value, the control signal is transmitted to the haze adjustment unit according to the external operation button, after the control signal is stopped, the multi-stable liquid crystal maintains the alignment direction, and the haze adjustment unit maintains the set fog value degree value. 如請求項1至3中任一項所述之用於螢幕的防窺組件，其中該霧度調整單元的受光透光導電元件以及該出光透光導電元件皆為透明，該受光透 光導電元件以及該出光透光導電元件為各自具有透光基材以及設置於該透光基材上的透光導電層，且該受光透光導電元件以及該出光透光導電元件各自為透光導電薄膜或透光導電玻璃。 The anti-peeping component for screen according to any one of claims 1 to 3, wherein the light-receiving and light-transmitting conductive element of the haze adjustment unit and the light-emitting and light-transmitting conductive element are both transparent, and the light-receiving and light-transmitting conductive element is transparent. The photoconductive element and the light-emitting and light-transmitting conductive element each have a light-transmitting substrate and a light-transmitting conductive layer disposed on the light-transmitting substrate, and the light-receiving and light-transmitting conductive element and the light-emitting and light-transmitting conductive element are each light-transmitting Conductive film or transparent conductive glass. 如請求項1至3中任一項所述之用於螢幕的防窺組件，其中該霧度調整元件的聚合物材料為紫外線硬化膠、壓克力膠、感壓膠或熱固化膠。 The anti-peeping component for a screen as claimed in any one of claims 1 to 3, wherein the polymer material of the haze adjusting element is ultraviolet curable glue, acrylic glue, pressure sensitive glue or thermosetting glue. 如請求項1至3中任一項所述之用於螢幕的防窺組件，其中該受光透光導電元件及該出光透光導電元件之間具有選定間隙，該選定間隙正比於該預設最大霧度值，而由該選定間隙及該選定組成比例決定該預設最大霧度值。 The anti-peeping component for a screen as described in any one of claims 1 to 3, wherein there is a selected gap between the light-receiving and light-transmitting conductive element and the light-emitting and light-transmitting conductive element, and the selected gap is proportional to the preset maximum haze value, and the preset maximum haze value is determined by the selected gap and the selected composition ratio.
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Citations (2)

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Publication number Priority date Publication date Assignee Title
TWM586364U (en) * 2019-06-24 2019-11-11 中強光電股份有限公司 Privacy screen protection layer and touch display device
TW202026698A (en) * 2010-11-08 2020-07-16 盧森堡商喜瑞爾工業公司 Display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202026698A (en) * 2010-11-08 2020-07-16 盧森堡商喜瑞爾工業公司 Display device
TWM586364U (en) * 2019-06-24 2019-11-11 中強光電股份有限公司 Privacy screen protection layer and touch display device
US20200400979A1 (en) * 2019-06-24 2020-12-24 Coretronic Corporation Screen anti-peeping protection layer and touch display device

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