574573 月 修正 曰 皇號 UJJ9122 五、發明說明（1) 本發明係有關於_ 特別有關；^利用^二，具有聚焦效果之平面透明面板， 模組及其顯示$。 透明面板達到控制視角範圍之背光 液晶顯不器頻A ^ 晶分子本身並不奋::一種很常見的平面㈣n，因為液 的光源，外的背光模組來提供所需 合液晶顯示面板=斜ίί、，且具有一定的光分布角度，以配 可視視角範圍，所以刀佈特性，廷會限制液晶顯示器的 一直是各液晶顯示哭J =加液晶顯示器的可視視角範圍 對擴大可視視角範圍。的努力商：J::點。隨著各大廠商 器的可視視角範gj # 般來次，現在的液晶顯示 但對於某：：：可：；到12〇>。，甚至150。。 可視視角範圍，—妒&二二，人隱私需求，反而需要縮小 的防窺貼紙，例如：3M的防J J螢幕上加貼-種限制視角 旦貼上後就無法除下，“氏，但是這種防窺貼紙一 變液晶顯示器的可視視角】“：法因應不同的使用場合改 第1 A圖係表示習知枯 圖。如圖所示，凸透明面.^凸透明面板聚光之示意 能，若有-光源P位於半“凸透明面板具有聚焦的功 後，半凸透明面板10可大巾5透端月面丄板10之前，、經折射作用 源Μ立於半凸透明面板1〇 :隹气小光線的散射角度，若發光 光轉為平行光。但是我們不、可點t’就可將發光源Ρ所發出的 視角範圍，而將-大片半=為了要縮小顯示器的可視 樣會非常笨重且不方便。 面板10加在顯示器前，這 睛參閱第1B圖，第ΐβ圖係一 耳透明 0632-7021TWFl(n) ； IP010HQ ; Jimmy.ptc 第 頁 574573 月 修正 曰 t號 91119122 五、發明說明（2) 面板聚光之示意圖。菲、曰且 常使用的聚光元件，它:巧：；1是-般的光學儀器 形成的透明面板，它：鏡透：面板10壓爲以後所 具有同心圓環狀區；” 有一中央圓形區域，周圍 發光源p位於菲^耳透明Λ光線的散射角度，若 ::出的先轉為千饤光。雖然菲涅耳透明面板”可 膜：料做出可彎曲的菲淫耳透明面板1111 $ :;::目：;在等，使用上也是不方便。 光折射角之平面在於提供一種可改變入射 器具有較大的可視視角範園，告古泰；;不00千^顯不 動作、，控制顯示器的可視視角&圍？％則可利用簡單的 為達成上述目的，本發明杏竑 板，包括··第一平面基板：第月平面透明* :的；晶層。第一平面基板 極，第二平面基板與第一平面 ^透月電 的第二面上具有一圓形的中央：二及2罪近第-面 子排列方式，改變平面透明中液晶分 明面板因繞射效應而具有如菲明面 1此平面透 果，改變入射光的折射角。耳透明面板般地聚光效 在一較佳實施例中，該中本祿ΒΒ + Λ ^^褒狀透明電極係為；；= ί數個呈同心 ---i电f連接，而由同一電壓來源 第6頁 2 702lTWPl(n) ; IP〇1011〇 ; limmy.ptc 574573574573 Month Revision Name UJJ9122 V. Description of the invention (1) This invention is about _ especially relevant; ^ Using ^ 2, a flat transparent panel with focusing effect, the module and its display $. Backlight LCD monitor with transparent panel to control the viewing angle range. A ^ The crystal molecule itself is not struggling :: a very common flat surface ㈣n, because the liquid light source, the external backlight module to provide the required LCD panel = oblique ίί, and has a certain light distribution angle to match the viewing angle range, so the characteristics of the knife cloth, the LCD will always limit the LCD display. J = plus the viewing angle range of the LCD display to expand the viewing angle range. Effort quotient: J :: point. With the visual angle range gj # of major manufacturers, the current LCD display, but for some ::::: to 12〇>. And even 150. . The range of viewing angles, jealousy & two, people need privacy, but need to reduce the size of anti-peeping stickers, for example: 3M anti-JJ screen paste-a limited view angle can not be removed once pasted, "", but This kind of anti-peeping sticker changes the viewing angle of the liquid crystal display] ": The method is changed to 1A according to different use occasions. As shown in the figure, the convex transparent surface. ^ The convex transparent panel can be used to indicate the concentration of light. If there is-the light source P is located on the semi- "convex transparent panel with the focusing function, the semi-convex transparent panel 10 can have a large towel and 5 transparent ends. Before the plate 10, the refraction source M stands on the semi-convex transparent panel 10: the scattering angle of the small ray of tritium gas, if the light is converted into parallel light, but we can not point the light source P to point t '. The range of angles of view issued, and -large and half = in order to reduce the visual appearance of the display will be very cumbersome and inconvenient. Panel 10 is added in front of the display, please refer to Figure 1B, and Figure ΐβ is a transparent ear 0632-7021TWFl ( n); IP010HQ; Jimmy.ptc Page 574573 Rev. t No. 91119122 V. Description of the invention (2) Schematic diagram of panel condensing. Philip, commonly used condensing element, it: clever :; 1 is-general The transparent panel formed by the optical instrument, it: mirror through: the panel 10 is pressed to have a concentric annular area; "there is a central circular area, the surrounding luminous source p is located at the scattering angle of the transparent Λ ray, if: : The first one is turned into Chiba Hikari. Although the Fresnel transparent panel can be made of film: it is possible to make a flexible Fresnel transparent panel 1111 $:; :: mesh:; wait, it is inconvenient to use. The plane of the light refraction angle is to provide a variable incidence The device has a large viewing angle Fan Yuan, telling ancient Thais; if the display is not in action, control the viewing angle of the display & surrounding?% Can be used simply to achieve the above purpose, the apricot board of the present invention, Including the first plane substrate: the first plane is transparent * :; crystal layer. The first plane substrate pole, the second plane substrate and the first plane have a circular center on the second side of the moon: two And 2 sin near-face arrangement, change the liquid crystal clear panel in the plane transparency has the same plane penetration effect as the Feminine surface 1 due to the diffraction effect, and change the angle of refraction of the incident light. The ear-clear panel condenses the light effect in one In a preferred embodiment, the Nakamoto β ++ ^^ 褒 -shaped transparent electrode system is; = ί several concentric --- i electrical f connection, and from the same voltage source page 6 2702lTWPl (n) ; IP〇1011〇; limmy.ptc 574573
所控制，然其亦可為電性不連接而分別為不同電壓來源所 控制或視設計需求而為多個電壓來源所控制。於上述第一 平面基板之第一面上具有之一第一透明電極之分布圖形， 係可為一連續之平面狀分布，然亦可為具有與第二平面基 板之中央透明電極及複數個呈同心圓排列的環狀透明電極 之圖形相對應之圖形。 曰3此外’本發明實施例另提供一種可改變視角範圍之液 ，背光模組及液晶顯示器，其包括··液晶顯示面板、背光 果、、且及上述平面透明面板。其中，背光模組可提供液晶顯 所需之光源，平面透明面板置於液晶顯示面板與背 ιΐ垂ί之間或疋置於該液晶顯示面板之前，可利用一偏 得此平面透明面板因繞射效應而具有如菲淫耳透 光效果1改變該背光模組所提供入射光源 述和其他目的 較佳實施例， 為了讓本發明之上 明顯易懂，下文特舉一 洋細說明如下： 實施例 、特徵、和優點能更 並配合所附圖示，作 別明 為明顯區別本發 對本發明實施例之 面板進行比較。 明之實施例與傳統技術之差異，茲分 液晶菲淫耳透明面板與傳統菲涅耳透 射入㈣為光線從不同的方向 短軸方向來區分，長細=吊疋以液晶分子的長轴方向與 射率為Ns。 向的折射率為K，短轴方向的折It can be controlled by different voltage sources without electrical connection, or by multiple voltage sources according to design requirements. A distribution pattern of a first transparent electrode on the first surface of the first planar substrate can be a continuous planar distribution, but it can also have a central transparent electrode and a plurality of Corresponding to the pattern of the circular transparent electrodes arranged in concentric circles. In addition, the embodiment of the present invention also provides a liquid, backlight module and liquid crystal display capable of changing the viewing angle range, which includes a liquid crystal display panel, a backlight, and the above-mentioned flat transparent panel. Among them, the backlight module can provide the light source required for the liquid crystal display. The flat transparent panel is placed between the liquid crystal display panel and the back panel, or placed in front of the liquid crystal display panel. It has a radiation effect such as phenanthrene transmission effect. 1 It is a preferred embodiment to change the incident light source provided by the backlight module and other purposes. In order to make the present invention obvious and easy to understand, a detailed description is given below as follows: Implementation The examples, features, and advantages can be combined with the accompanying drawings to make the comparison of the panels of the embodiments of the present invention as obvious differences. The difference between the embodiment of the Ming Dynasty and the traditional technology is that the liquid crystal Fresnel transparent panel and the traditional Fresnel are transmitted into the light. The light is distinguished from different directions and the short axis direction. Slimness = the length of the liquid crystal molecules The emissivity is Ns. The refractive index in the direction of K is the folding in the short axis direction
574573 五、發明說明（4) ^請參閱第2A、“圖，第2A圖係表示本發明實施例中未 向電壓的液晶分子狀態示意圖，第2β圖係表示本發明 貝％例中因偏向電壓而規則排列的液晶分子狀態示意圖。 如圖所不’ 一液晶層被一第一平面基板21及第二平面基板 22所包覆，其間距為d，當第一平面基板以及第二平面基 板22未被施加一偏向電壓v時（第2A圖），液晶分子“呈不 ，則的排列，所以當一入射光24進入液晶面板時，它所看 =到的折射率是一平均折射率Nav，約為（NJNJ/2。而當第 一=面基板及第一平面基板分別被施加不同之電壓而於第 平面，基板及第二平面基板間產生一偏向電壓V時（第2B 受偏向電壓V的液晶分子23會向著某一個既定方向偏 f呈規則排列，所以當一入射光24進入液晶面板時，它所 看它到的折射率是一個極化折射率\。 、凊芩閱第3圖，第3圖係表示本發明實施例中液晶菲涅 耳透明面板之概略結構圖。為達到可控制可視視角範圍的 目的，由上述目的結合菲涅耳透明面板的原理，我們可設 =出一種液晶菲涅耳透明面板3〇，它是在一第一平面基板 及第一平面基板U夾一液晶層36並以密封塾37a，37b 封住的平面透明面板，其間距為d，其中第一平面基板2i =第二平面基板22的材質可以為玻璃或是透明塑膠等透明 土反。另外，在第一平面基板21上的第一面31具有一 一 J明電極33，在第二平面基板22上的第二面32具有一中央 ，明電極34及環狀透明電極35a，35b，35c…等，為了讓光 2通過液晶菲涅耳透明面板3〇，這些透明電極的材質可 以為例如氧化錫銦（ITO)之透明導電材料。574573 V. Description of the invention (4) ^ Please refer to Figure 2A, "Figure, Figure 2A is a schematic diagram showing the state of a liquid crystal molecule without a voltage in the embodiment of the present invention, and Figure 2β is a graph showing the bias voltage due to the %% of the present invention. A schematic diagram of the state of regularly arranged liquid crystal molecules. As shown in the figure, a liquid crystal layer is covered by a first planar substrate 21 and a second planar substrate 22 with a distance of d. When the first planar substrate and the second planar substrate 22 When a bias voltage v is not applied (Figure 2A), the liquid crystal molecules are arranged in a regular manner, so when an incident light 24 enters the liquid crystal panel, the refractive index it sees is an average refractive index Nav, (NJNJ / 2. When a different voltage is applied to the first plane substrate and the first plane substrate, respectively, a bias voltage V is generated between the first plane, the substrate, and the second plane substrate (the second 2B receives the bias voltage V The liquid crystal molecules 23 will be regularly arranged towards a certain direction, so when an incident light 24 enters the liquid crystal panel, the refractive index it sees is a polarized refractive index \. See Figure 3 Figure 3 shows the invention The schematic structural diagram of the liquid crystal Fresnel transparent panel in the embodiment. In order to achieve the purpose of controlling the range of viewing angles, combining the above purpose with the principle of the Fresnel transparent panel, we can set up a liquid crystal Fresnel transparent panel 3〇 It is a planar transparent panel sandwiching a liquid crystal layer 36 on a first planar substrate and a first planar substrate U and sealed with seals 37a, 37b, and the distance is d, where the first planar substrate 2i = the second planar substrate The material of 22 can be transparent earth such as glass or transparent plastic. In addition, the first surface 31 on the first planar substrate 21 has a J-electrode 33 and the second surface 32 on the second planar substrate 22 has A central, bright electrode 34 and ring-shaped transparent electrodes 35a, 35b, 35c, etc. In order to let light 2 pass through the liquid crystal Fresnel transparent panel 30, the material of these transparent electrodes may be, for example, transparent conductive of indium tin oxide (ITO) material.
〇632.7〇2lTWl(n) ； IP010110 ; Jimmy.ptc 第8頁 574573 曰 案號 91119122 五、發明說明（5) 、 為了要形成類似菲涅耳透明面板1 1的聚光作用，中央 透明電極34是一圓形透明電極，而環狀透明電極35a，35b， 3 5c ···等則以同心圓環狀圍繞在中央透明電極34的周圍， 且中央透明電極3 4的第一圓心與環狀透明電極 3 5 a ’ 3 5 b，3 5 c…等同心圓的第二圓心重合，在一較佳實施 例中/中央透明電極34的圓半徑是固定間距L或是让倍的七 (k是自然數），而中央透明電極34與環狀透明電極“a的 間距為L，各個環狀透明電極35a，35b，35c…等的寬度及間 距也是L，也就是說當中央透明電極34的圓半徑是k倍的丄 時這些^狀透明電極35a，35b，35c…等的内徑分別為 (k + 2n-l)L ’η為自然數（此時之η分別為1，2，3…等）。 如第3圖所示之液晶菲涅耳透明面板3〇，當第一透明 f極33、中央透明電極34及環狀透明電極35a，35b，35〇… 等未受一偏向電壓V作用時，液晶層36中的液晶分子23(未 顯示）呈不規則的排列，本發明實施例的液晶菲涅耳透明 面板3 0就如同一般平面透明面板一樣並不會改變入射光的 行進方向，所以不會對入射光造成影響。但是當第一透明 ^極33、中央透明電極34及環狀透明電極35a，35b，35c… 等受到一偏向電壓V作用時，液晶層36中在中央透明電極 =及環狀透明電極35a，35b，35c…等的附近範圍内的液晶 刀子2 3 (未顯示）會向著某一個既定方向偏轉呈規則排列， 造成這些區域的折射率與其他區或的折射率有所不同，而 兩區域的折射率的差值為級=|‘-。 3月參閱第4圖’第4圖係表示使用本發明實施例之液晶 〇632-702™(n)*IP〇1011〇；Jimmy.ptc 第9頁 574573 案號 91119122 五、發明說明（6) ^ /圼耳透/月面板之光行進示意圖。因為偏向電壓^(未顯 不\的關係，在液晶層中造成未受偏向電壓影響之區域4 L 及受偏向電壓影響之區域42，因為未受偏向電壓影響之區 域41中的光折射率為液晶分子的平均折射率l，而受偏向 電壓影響之區域42中的光折射率為液晶分子的極化折射率 NP ’右壤狀透明電極的固定間距L縮小到可見光的範圍介 於400nm〜680 nm之間，或是以其平均值55〇nm作為固定間距 L，則因為當第一透明電極33、中央透明電極34及環狀透 明電極35a，35b，35c…等對液晶層36造成的規則的折射率 變化，會使入射光因繞射作用而會聚，而使入射光折射角 心的角度小於入射角&的角度，形成聚光效果。 请參閱第5 A圖’第5 A圖係表示本發明實施例中，含有 液晶菲淫耳透明面板的液晶顯示器，在未受偏向電壓時的 視角示意圖。因為一般的液晶顯示器是由背光模組及液晶 顯示面板54所組成，背光模組包括背光燈管52，導光板52 及擴散板5 3。在本發明實施例中，液晶菲涅耳透明面板3 〇 位於背光模組與液晶顯示面板54之間，由背光燈管52所發 出的光’經由導光板5 2反射及擴散板5 3散射後，其光源擴 散角為03，當本發明實施例之液晶菲涅耳透明面板3〇並八 未受一偏向電壓V時，並不會改變入射光的行進方向，還 是依原方向進入液晶顯示面板5 4，所以此時液晶顯示器的 可視視角範圍為其光源擴散角為Θ3，並不會受到影響\、〇632.7〇2lTWl (n); IP010110; Jimmy.ptc page 8 574573 case number 91119122 5. Description of the invention (5) In order to form a light collecting effect similar to the Fresnel transparent panel 11, the central transparent electrode 34 is A circular transparent electrode, and the ring-shaped transparent electrodes 35a, 35b, 3 5c, etc. are surrounded by a concentric ring shape around the central transparent electrode 34, and the first center of the central transparent electrode 34 and the ring-shaped transparent electrode The electrodes 3 5 a '3 5 b, 3 5 c ... coincide with the second center of the circle. In a preferred embodiment, the circle radius of the central transparent electrode 34 is a fixed distance L or a multiple of seven (k is (Natural number), and the distance between the central transparent electrode 34 and the ring-shaped transparent electrode "a is L, and the width and pitch of each ring-shaped transparent electrode 35a, 35b, 35c, etc. are also L, that is, when the circle of the center transparent electrode 34 is round When the radius is k times, the inner diameters of these transparent electrodes 35a, 35b, 35c, etc. are (k + 2n-1), and L'η is a natural number (where η is 1, 2, 3 ... Etc.) As shown in Figure 3, the liquid crystal Fresnel transparent panel 30, when the first transparent f-pole 33, the center transparent electric 34 and annular transparent electrodes 35a, 35b, 35 °, etc. When the liquid crystal molecules 36 (not shown) in the liquid crystal layer 36 are irregularly arranged without being subjected to a bias voltage V, the liquid crystal Fresnel of the embodiment of the present invention The transparent panel 30 is just like a general planar transparent panel and does not change the direction of the incident light, so it will not affect the incident light. However, when the first transparent electrode 33, the central transparent electrode 34, and the ring-shaped transparent electrode 35a, 35b, 35c ... When a bias voltage V is applied, the liquid crystal knife 2 3 (not shown) in the vicinity of the central transparent electrode = and the ring-shaped transparent electrode 35a, 35b, 35c, etc. in the liquid crystal layer 36 will face a certain direction. A predetermined direction deflection is regularly arranged, causing the refractive index of these regions to be different from the refractive index of other regions or the refractive index of the two regions, and the difference between the refractive indices of the two regions is level = | '-. The picture shows the liquid crystal 〇632-702 ™ (n) * IP〇1011〇 using the embodiment of the present invention; Jimmy.ptc Page 9 574573 Case No. 91119122 5. Description of the invention (6) ^ / Schematic diagram of light travel. Because the bias voltage ^ (not shown The relationship between \ is caused in the liquid crystal layer by the region 4 L not affected by the bias voltage and the region 42 affected by the bias voltage, because the refractive index of light in the region 41 not affected by the bias voltage is the average refractive index l of the liquid crystal molecules, The refractive index of light in the region 42 affected by the bias voltage is the polarization index of the liquid crystal molecules NP '. The fixed pitch L of the right soil-like transparent electrode is reduced to the range of visible light between 400 nm to 680 nm, or An average value of 55 nm is used as the fixed pitch L, because when the first transparent electrode 33, the central transparent electrode 34, and the ring-shaped transparent electrodes 35a, 35b, 35c, etc., cause a regular refractive index change to the liquid crystal layer 36, incident light will be incident. The light converges due to the diffraction effect, so that the angle at which the incident light refracts the angular center is smaller than the angle of the incident angle & Please refer to FIG. 5A. FIG. 5A is a schematic view showing a viewing angle of a liquid crystal display including a liquid crystal phenanthrene transparent panel in an embodiment of the present invention when it is not subjected to a bias voltage. Because a general liquid crystal display is composed of a backlight module and a liquid crystal display panel 54, the backlight module includes a backlight tube 52, a light guide plate 52, and a diffusion plate 53. In the embodiment of the present invention, the liquid crystal Fresnel transparent panel 30 is located between the backlight module and the liquid crystal display panel 54, and the light emitted by the backlight tube 52 is reflected by the light guide plate 52 and diffused by the diffusion plate 53. The light source diffusion angle is 03. When the liquid crystal Fresnel transparent panel 30 and 80 of the embodiment of the present invention is not subjected to a bias voltage V, it does not change the traveling direction of the incident light, or enters the liquid crystal display panel in the original direction. 5 4, so the visible viewing angle range of the LCD at this time is that the light source diffusion angle is Θ3, and it will not be affected. \ 、
0632-7021TWFl(n) ； IP01011Q ; jimmy>ptc 請參閱第5 Β圖，第5 Β圖係表示本發明實施例中，含有 液晶菲淫耳透明面板的液晶顯示器，在受偏向電壓時^視 角示思圖。當本發明實施例之液晶菲淫耳透明面板3 〇上的 574573 一案號 91119122 五、發明說明（7) 田第透明電極33、中央透明電極34及環狀透明電極3 5a， b，35c ···等受到一偏向電壓v作用時，會使入射光因繞射 1::會聚’、而使入射光折射角〜的角度小於入射角〜 土 a Γ、’形成聚光效果，此時進入液晶顯示面板54的入射 二散角會縮小’⑼以此時液晶顯示11的可視視角 範圍也會同時變小，其可視視角範圍縮小為2倍心。 另外，上述貫施例的液晶菲涅耳透明面板3 0是位於背 光模組與液晶顯示面板54之間，㉟是若液晶菲涅耳透明面 板30是位於液晶顯示面板54之前也是可以達到相同目的。 液晶菲涅耳透明面板30應用於顯示器上時，其第一平面基 板或第二平面基板任何一者皆可位於靠近光源之方向或^ 近使用，之方向，故而該平面透明面板之置放方式並無特 別之規定。同時本發明實施例之液晶菲涅耳透明面板3〇也 可以應用在一般其他的顯示器上，例如：CRT顯示器。 曰★由本發明實施例的說明可知，具有本發明實施例之液 晶菲涅耳透明面板30的液晶顯示器可利用一簡單的 向電壓V，迅速的改變液晶顯示器的可視視角範圍，平時 ，示器具有較大的可視視角範圍，當有需要時則可、 單的軟體或硬體動作，控制顯示器的可視視二 合特殊狀況的需要。 固以付 雖然本發明已以較佳實施例揭露如上，然1 限定本發明，任何熟習此技藝者，在不脫離本^明 = :範圍内，當可作些許之更動與潤饰，因此本發日=; 耗圍當視後附之申請專利範圍所界定者為準。 ” ° 〇632-7〇21TWFl(n) ； IP010110 ; Jimmy.ptc 第11頁 574573 _案號91119122_年月曰 修正_ 圖式簡單說明 圖式簡單說明： 第1 A圖係表示習知技術中半凸透鏡聚光之示意圖。 第1 B圖係表示習知技術中菲涅耳透鏡聚光之示意圖。 第2 A圖係表示本發明實施例中未受偏向電壓的液晶分 子狀態示意圖。 第2B圖係表示本發明實施例中因偏向電壓而規則排列 的液晶分子狀態示意圖。 第3圖係表示本發明實施例中液晶菲涅耳透鏡之概略 結構圖。 第4圖係表示使用本發明實施例之液晶菲涅耳透鏡之 光行進示意圖。 第5 A圖係表示本發明實施例中，含有液晶菲涅耳透鏡 的液晶顯示器，在未受偏向電壓時的視角示意圖。 第5B圖係表示本發明實施例中，含有液晶菲涅耳透鏡 的液晶顯示器，在受偏向電壓時的視角示意圖。 符號說明 • 10〜 凸 透 鏡 11〜 菲 涅 耳 透 鏡 ， 21〜 第 一 平 面 基 板， 22〜 第 二 平 面 基 板， 23〜 液 晶 分 子 ? 24〜 入 射 光 5 30〜 液 晶 菲 涅 耳 透鏡 31〜 第 一 面 50632-7021TWFl (n); IP01011Q; jimmy > ptc Please refer to FIG. 5B. FIG. 5B is a liquid crystal display including a liquid crystal phenophyllum transparent panel in the embodiment of the present invention. The angle of view is shown when the voltage is biased. Think chart. When the liquid crystal phenanthrene transparent panel 3 of the embodiment of the present invention has 574573 case number 91119122 V. Description of the invention (7) Tiandi transparent electrode 33, central transparent electrode 34, and ring-shaped transparent electrode 3 5a, b, 35c · When a bias voltage v is applied, the incident light will be caused by diffraction 1 :: convergence ', and the angle of refraction of the incident light will be smaller than the angle of incidence ~ soil a Γ,' forming a condensing effect. The incident divergence angle of the liquid crystal display panel 54 will be reduced, that is, the visible viewing angle range of the liquid crystal display 11 will also be reduced at the same time, and the visible viewing angle range thereof will be reduced to 2 times. In addition, the liquid crystal Fresnel transparent panel 30 in the above embodiment is located between the backlight module and the liquid crystal display panel 54. The same purpose can be achieved if the liquid crystal Fresnel transparent panel 30 is located before the liquid crystal display panel 54 . When the liquid crystal Fresnel transparent panel 30 is applied to a display, either the first flat substrate or the second flat substrate can be located in a direction close to the light source or in a direction close to the use, so the placement method of the flat transparent panel There are no special requirements. At the same time, the liquid crystal Fresnel transparent panel 30 of the embodiment of the present invention can also be applied to other general displays, such as a CRT display. It can be known from the description of the embodiment of the present invention that the liquid crystal display having the liquid crystal Fresnel transparent panel 30 of the embodiment of the present invention can quickly change the viewing angle range of the liquid crystal display by using a simple voltage V. In normal times, the display has Large viewing angle range, when required, single software or hardware can be used to control the visual viewing of the display in combination with special conditions. Although the present invention has been disclosed in the preferred embodiment as above, 1 restricts the present invention. Anyone skilled in this art can make some changes and retouching without departing from the scope of the present invention. Therefore, this Issue date =; Consumption shall be determined by the scope of the attached patent application. ”° 〇632-7〇21TWFl (n); IP010110; Jimmy.ptc Page 11 574573 _ Case No. 91119122_ Year Month and Revise _ Brief description of the diagram Brief description of the diagram: Figure 1 A shows the conventional technology Schematic diagram of focusing by a semi-convex lens. Figure 1B is a schematic diagram showing the focusing of a Fresnel lens in the conventional technology. Figure 2A is a schematic diagram showing the state of liquid crystal molecules that are not subjected to a bias voltage in the embodiment of the present invention. Figure 2B FIG. 3 is a schematic diagram showing a state of liquid crystal molecules regularly arranged due to a bias voltage in the embodiment of the present invention. FIG. 3 is a schematic structural diagram of a liquid crystal Fresnel lens in the embodiment of the present invention. FIG. 4 is a diagram showing the use of the embodiment of the present invention. Schematic diagram of the light travel of a liquid crystal Fresnel lens. Figure 5A is a schematic diagram of the viewing angle of a liquid crystal display containing a liquid crystal Fresnel lens in an embodiment of the present invention when it is not subjected to a bias voltage. Figure 5B is a view showing the implementation of the present invention In the example, a liquid crystal display including a liquid crystal Fresnel lens is a schematic view of a viewing angle when subjected to a bias voltage. Explanation of symbols • 10 ~ convex lens 11 ~ Fresnel lens 21 ~ A plane substrate, 22~ second planar substrate, liquid crystal molecules 23~? 24~ incident light 5 30~ liquid crystal Fresnel lens first surface 5 31~
0632-7021TWFl(n) ； IP010110 ； Jimmy.ptc 第12頁 574573 _案號91119122_年月 日 修正 圓式簡單說明 32〜第二面， 3 3〜第一透明電極， 34〜中央透明電極， 35a，35b，35c〜環狀透明電極， 3 6〜液晶層， 37a，37b〜密封塾， 41〜未受偏向電壓影響之區域， 42〜受偏向電壓影響之區域’ 5 1〜背光燈管， 52〜導光板， 5 3〜擴散板， 54〜液晶顯示面板， P〜發光源， d〜平面基板間距， V〜偏向電壓’ L〜固定間距， h〜入射角， h〜折射角， 0 3〜光源擴散角。0632-7021TWFl (n); IP010110; Jimmy.ptc Page 12 574573 _Case No. 91119122_ year, month and day correction round simple description 32 ~ second side, 3 3 ~ first transparent electrode, 34 ~ central transparent electrode, 35a 35b, 35c ~ ring transparent electrode, 36 ~ liquid crystal layer, 37a, 37b ~ sealed 塾, 41 ~ area not affected by bias voltage, 42 ~ area affected by bias voltage '5 1 ~ backlight tube, 52 ~ Light guide plate, 5 3 ~ diffuser plate, 54 ~ liquid crystal display panel, P ~ light source, d ~ plane substrate pitch, V ~ bias voltage 'L ~ fixed pitch, h ~ incident angle, h ~ refraction angle, 0 3 ~ Light source diffusion angle.
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