TW525009B - Improved light-shielding method of flat panel display and the device thereof - Google Patents

Abstract

An improved light-shielding method of flat panel display and the device thereof are disclosed, which comprises the following steps: providing a flat panel display first, which at least comprises a first substrate, a second substrate and a first black light-shielding matrix which is located on the plane of the second substrate and is between the first substrate and the second substrate, and the periphery of the second substrate plane is surrounded by the first black light-shielding matrix; providing a second black light-shielding matrix located at the second substrate, which is opposed to the other plane of the first black light-shielding matrix. The projection of the second black light-shielding matrix onto the second substrate is at least in some portion overlapped with the projection of the first black light-shielding matrix onto the second substrate.

Description

525009 A7 B7 Fifth invention description (/) [Field of the invention] The present invention relates to a method and device for covering a flat display, especially a light shielding improvement method suitable for a thin film transistor liquid crystal display device (tft_ LCD). . [Background of the invention]

Ordering the plane, ... The light leaking at the edge of Yuanshizhai, because it affects the quality of the editing, has been eliminated by the industry. The second is that for the liquid crystal display, the light leakage causes the deterioration of the image quality. As strict. However, the main method for preventing light leakage is often accompanied by sacrifices in other aspects of the display module, such as increased thickness or increased panel size in the non-display area, in order to achieve a balance. For example, as shown in FIG. 丨, the Z method uses a black light-shielding perimeter frame in the liquid crystal display panel and an iron case outer frame that covers the liquid crystal display module to shield the edges of the display from leaking light. However, this method requires the upper polarizing plate to be placed under the outer casing of the liquid crystal display module, and the thickness cannot be reduced because of the need to add the upper polarizing plate. As shown in Figure 1 (B), The polarizing plate is about the same layer as the outer frame of the iron case that covers the liquid crystal display module, but the width of the black perimeter frame needs to be widened to effectively prevent light leakage and overlap with the outer frame of the iron case that covers the liquid crystal display module. The size of the non-display area of the panel needs to be increased, which greatly wastes materials and increases the size of the peripheral area of the non-display panel. Moreover, the size of the outer frame of the iron case that covers the LCD 7F module also needs to be increased, which cannot be light, thin and short. Small requirements. However, the market and the industry can reduce the thickness of the frame of the display and its module, and reduce the black frame of the flat display. The paper size outline standard (CNS) A4 specification (210 X 297 525009 economy) unit Printed by A7 of the Consumer Property Cooperative of the Intellectual Property Bureau. V. The width of the invention (> /// Ucjc matrix), and at the same time improve the efficiency of shielding light leakage ... The time-shading method has an urgent need, and the inventor has for this reason. Based on the spirit of active invention, a "a shading improvement method and device for a flat panel display" that can solve the above problems is conceived. After several research experiments, the invention has been completed. [Summary of the Invention] The main purpose of the invention is In providing a shading improvement method for a flat display, the visibility of the black blaek matrix of the flat display can be reduced, and the efficiency of shielding light leakage can be improved. A secondary object of the present invention is to provide a flat display The shading improvement method reduces the size of the flat display and its module frame needed to shield light leakage, and improves the efficiency of shielding light leakage. Another object of the present invention is to provide a shading improvement method for a flat display. Reducing the thickness and minimizing the outer frame of the flat display and its module. Another object of the present invention is to A flat display is provided, which can reduce the thickness of the flat display and its module outer frame, reduce the width of the black matrix of the flat display, and improve the efficiency of shielding light leakage. In order to achieve the above-mentioned object, the flat display of the present invention The shading improvement method includes the following steps: first providing a flat display panel, wherein the flat display panel includes at least a first substrate, a second substrate, and a first black shading frame; the first black shading frame is located at J.-Assembly of the second substrate -------- Order --- (Please read the precautions on the back before filling out this page) 4- 525009 A7 printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs DESCRIPTION OF THE INVENTION The (plane) plane is interposed between the first substrate and the second substrate, and the outer periphery of the acnve area of the second substrate plane is surrounded by the first black light-shielding peripheral frame; A second black shading perimeter frame on the second substrate opposite to the first black shading perimeter frame, the projection of the second black shading perimeter frame on the second substrate and the first black shading The projection of the perimeter frame on the second substrate at least partially overlaps. The flat display device of the present invention includes: a display panel having at least a first substrate, a second substrate, a first black light-shielding peripheral frame, and a second black light-shielding peripheral frame; and a backlight module, The backlight frame is located on the other side of the second substrate opposite to the first black light-shielding frame to lift the light source of the flat display device; wherein the first black light-shielding frame is located on the plane of the substrate and intervening between The first substrate is between the second substrate and the second substrate. The outer peripheral edge of the second substrate plane Uctiv " rea) is surrounded by a first black shading frame. The second black shading frame is located on the first substrate. And the projection of the second black shading peripheral frame on the second substrate at least partially overlaps the projection of the first black shading peripheral frame on the second substrate. · Since the present invention does have an enhanced effect, the invention patent is required according to law. [Schematic description] Figure 1 is a schematic diagram of the conventional art. Fig. 2 is a schematic sectional view of a preferred embodiment of the present invention. Figure 3 is a top view of a preferred embodiment of the present invention. [Illustration of drawing number] ▲ The paper size is applicable to China I. -------- Order --- (Please read the precautions on the back before filling this page)

♦ 297¾) 525009 A7

L 100 liquid crystal display module 110 upper glass substrate 120 lower glass substrate 130 upper polarizing plate 140 lower polarizing plate 150 first black frame 160 second black frame 170 liquid crystal display panel 200 backlight module 300 housing 310 plastic fixing element 320 front Front bezel [Detailed description of preferred embodiments] The method for improving the shading of the flat display of the present invention includes the following steps. First, a flat display panel is provided, wherein the flat display panel includes at least each first substrate. A second substrate and a first black light-shielding peripheral frame; the first black light-shielding peripheral frame is located on a plane of the second substrate and interposed between the first substrate and the second substrate, and an active area of the second substrate plane (active area) ) The outer periphery is surrounded by the first black shading peripheral, and a second black shading peripheral frame located on the second base plate opposite to the first black shading peripheral frame is provided, the second black The projection of the light-shielding perimeter frame on the second substrate at least partially overlaps the projection of the first black light-shielding perimeter frame on the second substrate. The method preferably further includes providing a backlight module for the light source of the flat display, the backlight module is located on the second substrate opposite to the other side of the first black shading frame and the backlight module is on the second substrate. The projection is at least partially weighted at the same time as the projection of the first black shading frame and the second black shading frame on the second substrate. Preferably, the method may further include providing a housing made of a light-shielding material to accommodate and fix the flat display paper ruler. Applicable to Zhongguanjia Standard (CNS) A4 (210 X 297) --- Order --- (Please read the notes on the back before filling this page)

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nn I stupid n-525009 Printed clothing A7 B7 by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (ζ) Foreign mouse < A surface is stacked on the first substrate of the flat display panel and the shell covers the flat surface The periphery of the display. The flat display device of the present invention comprises: a display panel, the display panel ν has a first substrate, a second substrate, a first black light-shielding peripheral frame and a second black light-shielding peripheral frame; and a backlight module, The backlight module is located on the other side of the second substrate opposite to the first black light-shielding frame, and is used to provide a light source for a flat display device; wherein the first black light-shielding frame is numerous; Between the first substrate and the second substrate, the outer periphery of the active area of the second substrate plane is surrounded by a black shading frame. At the same time, the second black shading perimeter frame is located on another plane of the second substrate opposite to the first black shading perimeter frame, and the projection of the first black shading perimeter frame on the second substrate and the first black shading The projection of the perimeter frame on the second substrate at least partially overlaps. The flat panel display applicable to the present invention is not limited, and a thin film liquid crystal good TF is preferred. In the light-shielding improvement method of the flat display of the present invention, the first black light-shielding frame (blanCk matnX) and the second black light-shielding frame (blaCk matnX) are used to block light to prevent light leakage from the periphery of the display panel (hght). leaking) In a preferred case, it can further cover the iron casing of the flat display for joint shading. Therefore, the projection of the Tth black shading frame on the second substrate of the flat display needs to be at least partially heavy than the projection of the black shading S frame on the second substrate of the flat display. Put on the second substrate of the flat display. The second black light-shielding frame (bhck m "rix) is formed; the first substrate can be completed by any conventional method, and it is better to print on a paper scale to fit the financial standards. _____ Install ------- -Order --------- (Please read the notes on the back before filling this page)

525009

5. Description of the invention (G) or the method of attaching the second black light-shielding frame (black buckle) on the second substrate, and of course, it can be added to the second substrate as a ready-made frame. There is no special limitation on the width of the second black shading perimeter frame. The projection of the inner edge on the second substrate and the projection of the first black shading perimeter frame on the second substrate at least partially overlap. The outer edge can be adjusted according to actual needs. Extending outward, of course, it can also extend to the periphery of the second substrate. Preferably, the flat display includes at least a lower polarizer, wherein the polarizer is located on the second substrate on the same side as the second black light-shielding perimeter frame and is second black The shading frame is surrounded by this. In order to make your investigation committee better understand the technical content of the present invention, a specific embodiment of a shading improvement method for a flat panel display is described below. (Please read the precautions on the back before filling in this page)

Equipment ---- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy μ > Figure 2 and Figure 3 'The second figure is a cross-sectional view of a preferred example of the present invention. It is not intended. It can be seen from FIG. 2 that the liquid crystal display module 100 ′ of this preferred example is provided between two glass substrates with a black light-shielding frame 丨 50 (that is, the first black frame). 50 and a closed perimeter frame is formed around the periphery of the liquid crystal panel. An upper polarizing layer 130 is provided on the upper glass substrate. The area and perimeter of the upper polarizing layer 130 are smaller than the area and perimeter of the LCD panel 170. A lower polarizing layer 140 is also provided above the lower glass substrate 120. The area and perimeter of the lower polarizing layer 140 are smaller than the area and perimeter of the LCD panel 170. Below the thin-film electrical liquid crystal display liquid crystal panel 700, a backlight module 2000 is provided, and the backlight module includes at least one light guide plate and a plurality of light diffusion layers and plutonium layers. The LCD panel 170 and the backlight module 2000 are integrated into an iron shell frame. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 private cents). -525009 A7

Please read the Remarks on the back first

525009 Α7 Β7 V. Description of the invention (parent) Display panel and 320 (front bezel) overlapping area of the front frame of the iron shell; in other words, at the same display area size, the method of the present invention can reduce the size of the display panel outside the display area size The length and width, that is, the area of the liquid crystal display panel that overlaps under the outer frame of the iron case can be greatly reduced, and the effect of completely preventing light leakage can still be achieved. At the same time, the size of the front bezel of the iron shell frame required for this fit can also be greatly reduced to achieve lighter, thinner, shorter, and smaller requirements. In addition, because the second black light-shielding peripheral frame is attached to the lower glass substrate and surrounds the periphery of the lower polarizing plate, it does not increase the thickness of the entire liquid crystal display panel, and it is even different from the conventional whole including the outer shell and the Compared with the liquid crystal display of the backlight module, the thickness of the liquid crystal display π including the iron case frame and the backlight module using the method of the present invention is smaller than that in the past, but the effect of shielding light leakage is better. It can be seen that the progress of the present invention differs from the advancement characteristics of the prior art, and is obvious and excellent. To sum up, the present invention, regardless of its purpose, means, and effect, shows its characteristics that are quite different from the conventional technology. It cries out as one of "a cover for flat displays: good methods and devices." Quasi-patent, 俾 = society, real sense. However, it should be noted that the above-mentioned embodiments are only limited by the scope of the rights claimed by the present invention, who should be the ones described in the scope of the patent application, and not limited to the above-mentioned embodiments. (Please read the notes on the back before filling this page)

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Claims (1)

525009, patent application scope 4. If you are applying for a patent, you can use -w,,, and the improved shading method, where the good > and not * are liquid crystal displays. For example, the scope of the patent application No. 1 ;, Japan & — _ /, the < light-shielding modification method, wherein the liquid two t2 2 further contains less f-lower polarizing plate, where the polarizing plate is positioned, one The soil plate is on the same side as the second black shading perimeter frame and is surrounded by the second black shading perimeter frame. 7 6. The improved shading method as described in the patent application, wherein the first black bar shading frame is fixed to the second substrate by attaching it. The shading improvement method described in item Id SU of the application of the kiss patent, wherein the black shading peripheral frame is fixed to the second substrate by printing. The light-shielding improvement method as described in item 1 of the scope of the patent application, wherein the color-shading shade is added to the second substrate in the form of silk. A flat display device includes: a line-display panel, the The display panel has at least a first substrate, a second substrate, a first black light shielding frame and a second black light shielding frame Γ and a backlight module, the backlight module is located on the second substrate with respect to the first black light shielding periphery. The other side of the frame is used to provide a light source for a flat display device. Wherein, the first black light shielding peripheral frame is located on the second substrate = plane and interposed between the first substrate and the second substrate, and The outer periphery of the active area is surrounded by the black-black shading frame; ^ This paper size applies to China National Standard (CNS) A4 specifications (2〗 0 X 297 gold cents) 4Ί 525009 The second black shading perimeter frame is located on the second substrate, and the projection of the second black shading perimeter frame on the second substrate at least partially overlaps the projection of the first black shading perimeter frame on the first substrate. ιο · The flat display device described in item 9 of the scope of patent application, further comprising a housing made of a light-shielding material to accommodate and fix the flat display as a surface of '4. One surface is superposed on the flat display panel A first substrate and the casing covering a periphery of the flat display. Patent application scope 11. The flat display device according to item 9 of the patent application scope, wherein the flat display is not a liquid crystal display. 12. The flat display device according to item 9 of the scope of patent application, wherein the liquid crystal display device includes at least one polarizing plate, wherein the polarizing plate is located on the second substrate and the second black light-shielding peripheral frame. The same side is surrounded by a second black shading perimeter frame. 13. The flat display device according to item 9 of the scope of patent application, wherein the second black light-shielding peripheral frame is fixed to the second substrate by means of attaching. 14. The flat display device described in item 9 of the scope of patent application, wherein the second black shading frame is fixed to the second beauty board by printing. 15. The flat display device as described in item 9 of the scope of the patent application, "" wherein the first black shading frame is a square frame with a ready-made frame." National Standard (CNS) A4 specification (210 X 297 color centimeters) I: ^ ----------------- line (please read the precautions on the back before filling this page) Ministry of Economy Printed by the Intellectual Property Bureau Staff Consumer Cooperative