TWI253521B - Optic structure of high brightness reflective type liquid crystal display - Google Patents

Abstract

The present invention relates to an optic structure of high brightness reflective type liquid crystal display, which comprises an upper glass substrate, a liquid crystal layer, and a lower glass substrate. The upper glass substrate has a plurality of alternatively arranged micro lens arrays. The micro lens array is formed by a plurality of first elements and second elements which are arranged regularly or irregularly at the same plane. The lower glass substrate has an aluminum reflecting layer having an aluminum layer. An optic film made of high reflective material is installed between the aluminum layer and a protecting layer.

Description

1253521 Case No. 90107633 Rev. 5, Invention Description (1) Technical Field] This fabric, especially a glass substrate [previously pressed, reflected to mention such liquid crystal and can save quality is by external S pec U 1 Y The plane is therefore also distributed and the ratio is not observed. In addition, more light and light are observed. The purpose and the high-brightness contrast of the present invention are related to a high-brightness reflective liquid crystal display. Most microlens arrays, and reflective liquid crystal displays on the lower optical film. It is used in the display of electrical energy. Bound ray ar ref normal L liquid crystal is shown obliquely above the glass-based ray layer provided with a reflective device required to be internal, however, the reflection of the lection) on both sides has a display area i or 1^. Brightness, and the liquid crystal display light source, to achieve the light source, with a kind of reflective distribution to determine the principle that the same angle has an oblique direction so that the liquid is located in the vertical, which is sufficient by external light. Illumination, therefore, to reduce the weight of the display, the image of the liquid crystal display, optically specularly reflecting the incident light X and the reflected light α (as shown in Fig. 8), the light X, the reflected light of the user of the display, the crystal display The brightness and the corresponding element, as shown in Figure 9, when the reflected light X is reflected, the reflected light of the modulated light is reflected by the light. The main purpose of the light-emitting liquid crystal display device and the second component pair. The liquid crystal display is rotated so that the surface reflection generated by the surface of the display overlaps, and when it is seen in sunlight or indoors, the contrast of the image is lowered. In order to solve the above problems, an optical structure is provided, in which the incident light of the microlens array forms refraction, focus, and

Page 5 1253521 Case No. 90107633 Year Month Amendment V. Invention Description Good reflectance rate, and then form diffraction to improve [technical internal structure, its package; among them, most of the same flat composition, (2) optical by The micro first, in order to make the brightness thereof, includes: the upper glass staggered row position, the bottom surface side of each of the first bottom side has a second side bottom surface of the element connected to the first side, the first first connection, and the first The second base film is combined with the lens array to be compared with a micro-rule of one of the upper glass substrate columns or a top surface of one of the elements; the misaligned surface has a second surface extending upwardly, and the second surface is further a polarizing plate on one side is provided with a phase compensating plate, which is an upper glass plate, which is a liquid crystal layer, which is provided with a plurality of liquid crystal layers and the lower glass substrate is attached to the first light of the aluminum reverse column. degree. The high-brightness glass substrate comprises: a lens array irregularly connected to the edge of the bottom line and each of which is connected to the second connection; the plurality of lines are disposed on the upper layer and disposed on the emission layer The optical junction layer of the reflective liquid crystal display and the liquid glass substrate of the reflective liquid crystal display can be located in the forward position of the display, and the microlens array is arranged in a plurality of positions. Having a first bottom surface of the component and the second component, the first side, the first side extending upwardly and at least one of the other ones of the first bottom surface are respectively disposed on the right side of the device, and the second side is divided into two The second component of each of the second pair of brothers - the top edge of the two sides is a second connecting surface number of microlenses. The polarizer phase assists the bottom of the glass substrate liquid crystal layer bottom array on the glass substrate; the bottom; the bottom of the board; a gap at the bottom of the bottom of the glass plate; the portion, and the lower glass base

Page 6 1253521 __ Case No. 90107633_Yearly 曰 Amendment V. Invention Description (3) The board includes: and the layer light is used to select the 05^ counter. The aluminum film protection part of the protection of the underlying school, the light layer from the part of the Is is difficult, the bottom of the part of the layer, the bottom layer between the layer of protection, the anti-optimal crystal layer into aluminum and liquid protection The quality of the system is based on the design of the material and the system is set up; its layer is shot and its combination, Is reverse, the layer is layered on the high layer, there is a protective gap of the glass The layer has a glass-to-bath, and the aluminum and aluminum are issued one by one, one is more than one film, and the other has a fine use of this. The book of the Anzhong book for the purpose of the application is for the purpose of the application, and the other is to show the depth of the book or the place where it is located. Figure use, pieces, creation, other examples of composition, drawings, and some of them, 6 said that a certain indication 1 is provided in the exhibition and only in the use of the map. Detailed details of the structure, but in the case of the conclusion, and examples of the same example, the application of the application is not true, I said that one of the pieces of the circle is a half line and ο two straight 1± a layered column and a crystal array 1 having a liquid: the mirror 1 is provided with a member 1 , the micro-element 1 1 1 the bottom 1 plate, the first base ο 1 Column 1 1 The row of glass is ranked first, and the mirror is one, :, 43⁄4 is set to $1, and the middle is the 1st. Each side of the package is made up of 1 system, and the level is flat. The surface is limited to 3 rows and one bottom. The hair plate is the same as the group. The structure is given to the number of the number of the second number.

Page 7 1253521 _ Case No. 90107633_ Year Month 曰 Correction __ V. Invention Description (4) One side 1 1 2 is connected to the first arc surface 1 1 4; and each of the second elements 1 2 is separately set On the two sides of the first element 1 1 , and two or two are staggered, and each of the second elements 1 2 has a second bottom surface 1 2 1 having a sector of 90°, and the second bottom surface 1 2 1 has two a second side 1 2 2 perpendicular to each other, the second side 1 2 2 respectively extending upwardly to a second surface 1 2 3 which is also curved, and the top edge of the second surface 1 2 3 is a second arc Face 1 2 5 connection. a polarizer 13 is disposed at a bottom of the plurality of microlens arrays 1;

a phase compensation plate 14 is disposed at the bottom of the polarizer 13; an upper glass plate 15 is disposed at the bottom of the phase compensation plate 14 and the liquid crystal layer 2' is attached to the upper glass a bottom of the glass plate 15 on the substrate 1, the liquid crystal layer 2 has a plurality of spacers 2 1 bonded to the bottom of the upper glass plate 15; and the lower glass substrate 3 is attached to the bottom 5 of the liquid crystal layer 2 and the lower portion The glass substrate 3 includes: a protective layer 3 1 disposed at the bottom of the liquid crystal layer 2, and the protective layer 31 is combined with the plurality of spacers 2 1; an aluminum reflective layer 3 2 is attached to the protection At the bottom of layer 3 1

The aluminum reflective layer 32 has an aluminum layer 3 2 1 , and an optical film 3 2 2 is disposed between the aluminum layer 3 2 1 and the protective layer 31. The optical film 32 2 is made of cerium oxide (SiO 2 ) and Titanium dioxide (Ti02) is alternately vapor-deposited on the aluminum layer 3 2 1 ; a lower glass plate 3 3 is attached to the aluminum layer of the aluminum reflective layer 32

Page 8 1253521 _ Case No. 90107633_年月日日__^_ V. Description of invention (5) 3 2 1 bottom. It should be noted that the first component 1 1 and the second component 12 of each of the micromirror arrays 10 have a predetermined shape, so that each of the first component 1 1 and the second component 12 has a convex lens. a light effect, and focusing the concentrated incident X-rays on the reflective aluminum layer 32, and the incident aluminum X of the reflective aluminum layer 3 2 reflects the incident light X, and the reflected light Y The diffraction of the first element 1 1 and the second element 12 through the micromirror array 10 is concentrated in the forward direction of the glass substrate 1 (ie, perpendicular to the upper glass substrate 1) of the present invention. The optical film 32 2 of the reflective aluminum layer 3 2 is intercalated with the titanium dioxide (S i 02 ) and the titanium dioxide (T i 02 ) on the inscription layer 3 2 1 to form a so-called cold mirror (C). ο 1 dmirror ), the optical film 3 2 2 is measured by a spectrometer (not shown), and its surface relative reflectivity can be found in the test data of Fig. 5 at 4 0 0~7 8 nm In the wavelength range, there is a very high relative reflectivity, and this is relative to a high reflection coefficient of the reflective layer 3 2 实际In the present invention, the first element 1 1 and the second element 1 2 of each of the microlens arrays 10 are combined with the reflective aluminum layer 32 in the optical structure of the liquid crystal display, as shown in FIG. When the incident light X of the external environment enters the first element 1 1 and the second element 1 2 of the microlens array 10, it is first deflected into the refracted light X 1 , and passes through the polarizer 13 and the phase compensation plate. 1 4, an upper glass plate 15 , a liquid crystal layer 2 and a protective layer 3 1 , and then focused on the reflective aluminum layer 3 2 , by the optical film 3 2 2 and the aluminum layer 3 2 1 on the reflective aluminum layer 3 2 Reflection, visible light can be efficiently reflected into reflected light Y, which is reversed through the protective layer

Page 9 1253521 _ Case No. 90107633_年月日日__ V. Invention description (6) 3 1 , liquid crystal layer 2, upper glass plate 15 , phase compensation plate 1 4 and polarizer 1 3 , and pass through the microlens The first component 1 1 of the array 10 and the second component 1

2, the reflected light Y is modulated to form a diffracted light Z in a forward direction, and an incident light X of an ambient light source incident light X and a plane angle of the upper glass substrate 1 is set as an example, and then respectively The liquid crystal display of the present invention rotates 90 degrees clockwise in the horizontal direction and 90 degrees in the counterclockwise direction, and measures the reflectance value of the diffracted light Z (as shown in Fig. 4). The abscissa represents the angle of view at various angles. The ordinate represents the reflectance value relative to the oxidized town (M g 0 ) standard white plate. Wherein, as shown in Figures 5 and 6, when the incident light X of the external environment is incident at an angle of 30 degrees, the specular reflection angle of the reflected light Y is 3 degrees, and most of the reflected light Y is distributed at the specular reflection angle / The positive and negative angles of 3 are within the range of 120 degrees, that is, the range of 20 degrees to 40 degrees, so the effect of collecting light is quite good. In summary, the present invention is formed by the first element 1 1 and the second element 12 of the microlens array 10, which are refracted, focused, and bonded to the aluminum reflective layer 3 with a preferred reflectivity optical film 3 2 2 . 2, in order to improve the utilization of the external light source, and then the first element 1 1 and the second element 12 of the microlens array 10 form a diffraction of the reflected light Y, so that the emitted diffracted light Z can be located in the display To position to increase its brightness and contrast. Of course, there are still many examples of the present invention with only minor changes in detail. Please refer to FIG. 7, which is a second embodiment of the present invention, wherein

The first bottom surface 4 1 1 and the first surface 4 1 2 of the first element 4 1 of the microlens array 40 are respectively In the isosceles triangle, the top edge of the first side of the first surface 4 1 2 has a first slope 4 1 3 which is connected to the other side of the first bottom surface 41 1 and is also triangular; and each of the second components The second bottom surface 42 1 of the 42 is an isosceles right triangle, the second bottom surface 4 2 1 and the two sides extend upwardly. The second surface 4 2 2 is also a triangle, and the top edge of the second surface 4 2 2 is a The two inclined faces are connected by the first element 4 1 and the second element 4 2 in a half-turn state to make the light source in the environment different in function to achieve the functions of the foregoing first embodiment. The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the invention. From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the above-mentioned objects, and is in accordance with the provisions of the Patent Law.

Page 11 1253521 Case No. 90107633 Date of the Year Correction of the Drawings Fig. 1 is a perspective view showing the structure of the first embodiment of the present invention. Fig. 2 is a cross-sectional view showing the structure and ray travel of the first embodiment of the present invention. Fig. 3 is a top plan view showing the microlens array of the first embodiment of the present invention. Fig. 4 is a graph showing the optical characteristics of the relative reflectance of the aluminum reflective layer of the first embodiment of the present invention at different wavelengths. Fig. 5 is a view showing the incidence and reflection distribution of the light source of the first embodiment of the present invention.

Fig. 6 is a graph showing the reflectance of the positive and negative deflections of the display of the first embodiment of the present invention at 90 degrees. Figure 7 is a perspective view of a second embodiment of the present invention. Figure 8 is a cross-sectional view showing the structure of a conventional reflective liquid crystal display. Figure 9 is a schematic diagram of a reflective external light source of a conventional reflective liquid crystal display. [Description of the figure] Incident light X Plane normal L Microlens array 1〇 First bottom surface 1 1 1 First surface 1 1 3 Second bottom surface 1 2 1

(Applicable part) Angle α Reflected light Υ (Part of the invention Upper glass substrate 1 First element 1 1 First side 1 1 2 First curved surface 1 1 4 Second element 1 2

Page 12 1253521 Case No. 90107633 Yearly correction diagram Simple description Second side 1 2 2 Second arc surface 1 2 5 Phase compensation board 1 4 Liquid crystal layer 2 Lower glass substrate 3 Aluminum reflective layer 3 2 Second side 1 Polarizer 1 Upper glass plate spacer 2 Protective layer 3 Aluminum layer 3 2 2 00 r—H CVj CX1 00 3 4 1 4 2 1 Plate 4 pieces 4 XZ Glass element surface light P glass 1-22 shooting Next first first winding van OW 0<u IX 00 1-f rH CO CX1 column 4 4 4 4 3 front surface χ γ ^ λ film bottom oblique bottom oblique light angle through the one-two two shot The first light of the first light

Page 13

Claims (1)

1253521 _ Case No. 90107633 丨 日 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The upper glass substrate comprises: a plurality of staggered microlens arrays, wherein the microlens array is composed of a plurality of first and second elements that are regularly or irregularly arranged at the same plane position, each of the first elements having a bottom position a first bottom surface, the first bottom surface has a first side in a straight line, the first side extends upwardly a first surface, each of the first bottom surface and the first surface is semicircular, and the first surface The top edge of one side has at least one first curved surface connected to the other side of the first bottom surface; and each of the second components is respectively disposed on two sides of the first component, and is staggered, and each of the second The component has a second bottom surface, the second bottom surface has a second side connected by two phases, and the second second side respectively extends upwardly to a second surface, and each of the second bottom surface and the second surface has a fan shape of 9 ◦ °. And the second second The top edge is connected to the other side of the second bottom surface by a second connecting surface; a polarizer is disposed at the bottom of the plurality of microlens arrays; and a phase compensating plate is disposed at the bottom of the polarizer An upper glass plate is disposed at the bottom of the phase auxiliary plate; the liquid crystal layer is disposed on the bottom of the glass plate above the upper glass substrate, and the liquid crystal layer has a plurality of gaps bonded to the bottom of the upper glass plate And the lower glass substrate is disposed at the bottom of the liquid crystal layer, and the lower glass substrate comprises: a protective layer disposed at the bottom of the liquid crystal layer, and the protective layer Page 14 1253521 _ Case No. 90107633_年月日日_^__ Six, the patent application scope and combined with the majority of the gap; an aluminum reflective layer, which is set at the bottom of the protective layer, the aluminum reflective layer has an aluminum An optical film is disposed between the aluminum layer and the protective layer, and the optical film is formed by alternately evaporating cerium oxide and titanium dioxide on the aluminum layer; and the lower glass plate is disposed on the aluminum reflective layer. The bottom of the aluminum layer. An optical structure of a high-brightness reflective liquid crystal display, comprising: an upper glass substrate, a liquid crystal layer and a lower glass substrate; wherein the upper glass substrate comprises: a plurality of staggered microlens arrays, the microlens The array is composed of a plurality of first and second elements that are regularly or irregularly arranged at the same plane position. Each of the first elements has a first bottom surface at a bottom position, and the first bottom surface has a straight line The first side and the first surface are triangular, and the top edge of the first surface has at least one side connected to the other side of the first bottom surface and is beveled. a first inclined surface; and each of the second components is disposed on two sides of the first component and staggered, and each of the second components has a second bottom surface, wherein the second bottom surface has two phases a second side, the second side extends upwardly to a second surface, each of the second bottom surface and the second surface is triangular, and the top edge of the second surface is a second inclined surface of the second surface Two underside Side connector; a polarizing plate, which is provided on the bottom line of the majority of the microlens array; a phase compensator, which is provided on the bottom line of the polarizer; Page 15 1253521 Case No. 90107633 Rev. IX. Patent Application Scope A glass plate is attached to the bottom of the phase auxiliary plate; the liquid crystal layer is disposed on the bottom of the glass plate above the upper glass substrate. The liquid crystal layer has a plurality of spacers bonded to the bottom of the upper glass plate; and the lower glass substrate is disposed at the bottom of the liquid crystal layer, and the lower glass substrate comprises: a protective layer disposed at the bottom of the liquid crystal layer And the protective layer is combined with the majority of the gaps; a reflective layer disposed at the bottom of the protective layer, the is reflective layer having an inscription layer, an optical film between the inscription layer and the protective layer, the optical film being interlaced with cerium oxide and titanium dioxide Plated on the I layer; the lower glass plate is attached to the bottom of the inscription layer of the reflective layer. Page 16 1253521 _ Case No. 90107633_年月曰__ VI. Designated representative map