TWI274216B - Common-electrode lighting device - Google Patents

Abstract

A common-electrode lighting device is employed in the thin film transistor-liquid crystal display (TFT-LCD) to illuminate the panel of the TFT-LCD. The common-electrode lighting device comprises multiple common-electrode components providing multiple conductive holes with mutual electric connection and multiple light-emitting components connected with those conductive holes.

Description

1274216 V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to an illumination device and, more particularly, to a thin film transistor-liquid crystal display (TFT-LCD). The illumination device for illuminating the panel of the thin film transistor liquid crystal display. [Prior Art] A lighting device such as a lamp tube in a TFT-LCD is mainly provided with a light source to illuminate the function of the panel of the TFT-LCD. After the lighting device is added to the TFT-LCD panel that controls the light, a TFT-LCD can be formed. As the size of the TFT-LCD increases, the illumination device also needs to have a high brightness characteristic for the purpose. In the method of increasing the brightness of the lighting device, increasing the number of lamps is one of the most direct and effective methods. Please refer to FIG. 1A, which is a schematic structural view of a conventional direct-lit illuminating device used in a TFT-LCD to illuminate a panel of a TFT-LCD. The conventional direct type lighting device 100 mainly includes a plurality of outer electrode tubes 1 i 〇 and a holder 120. In the direct-lit illuminating device 10 ,, the outer electrode tube 丨丨〇 is fixed by the fixing frame 120, so that the outer electrode tube has a fixed relative position between the turns, so that the emission is uniform. The light comes to illuminate the TFT-LCD panel. As shown in the figure, the external electrode tubes π 〇 are respectively placed in the fixing grooves 122 of the fixing frame 120 to achieve the above purpose. Each of the outer electrode tubes 110 must be electrically coupled to the power supply device and respectively coupled to the ground so that they can both emit light.

TW0988F(奇美).ptd 1274216 V. DESCRIPTION OF THE INVENTION (2) Please refer to FIG. 1B, which is a schematic structural view of a conventional side illuminating device used in a TFT_LCD to illuminate a panel of a TFT-LCD. The conventional side illuminating device 150 is required to be used with a backlight unit (not shown), and mainly includes an outer electrode tube 160 and an 0-ring 174. The two sides of the outer electrode tube 1 60 are respectively sleeved in the corresponding 〇-shaped ring 170, so that the outer electrode tube 160 can be fixed so as to have a fixed relative position with each other and emit light. The backlight module evenly distributes the light to the τα TFT-LCD panel. The outer electrode tubes 16 6 are respectively coupled to the power supply device 丨 8 〇 and respectively coupled to the ground as shown in the drawing. As can be seen from the above, the conventional lighting device (including the direct type lighting device and the side edge lighting device) used in the TFT-LCD has the following disadvantages: ', 1. The number of wires used is excessive: each outer electrode tube All of them must be connected to the power supply device and connected to the ground by wires, and the number of shapes is too large, which has the disadvantages of complicated circuit, inconvenient assembly and high cost. 2. Fix the lamp with a fixed frame or a 〇-shaped ring. The lamp must have a fixed relative position and must be fixed by using a fixing frame or an O-ring. Third, the required voltage cannot be reduced: t is limited to the way in which the lamp is electrically connected to the power supply device, and the supply voltage cannot be lowered. [Description of the Invention] 1274216 V. DESCRIPTION OF THE INVENTION (3) In view of the above, the device of the present invention has the following objectives: First, the required wire is simpler, and the wire can be reduced, and the fixing frame is not required to be fixed. Relative position. 3. Power Supply Device According to the above various purposes, the illumination device is used for a panel of a thin film liquid crystal liquid crystal display. The in-line conductive with electrical conductivity is electrically connected to each other and directly sleeved. The present invention further provides a thin film transistor liquid crystal display in which the surface of the film transistor liquid crystal display has a plurality of electrically conductive ring-column interconnections electrically connected to each other. The following is a preferred embodiment of the present invention. The purpose is to provide a common electrode illumination that can be effectively reduced, making the circuit costable and simplifying assembly. Or the O-ring can also fix the lamp tube, so that the liquid crystal provided by the lamp tube of the present invention comprises: a plurality of holes, the bare lamp tube, the side type, and the backlight plate. Included type of conductive hole socket is bare, characteristic, and the voltage can be combined with a kind of in-line electrode of the indicator to serve as an electric common electrode module: multiple holes, the lamp tube, and the picture of the superior to reduce the direct type To illuminate the parts, separate the electrodes. The lighting assembly uses a common electrode array to serve as an electrical point. The common electrode thin film has a porous inter-hole system for illuminating thin parts. The separate conductive holes are obviously easy to specify. Method, the common electrode illumination device of the present invention mainly comprises a common electrode member and a light emitting member. The illuminating member is sleeved by the common electrode member so that the illuminating member can have a fixed TW0988F (奇美).pt (i page 6 1274216

.......... I V. Description of the invention (4) Relative position; and the light-emitting members can be electrically connected to each other, which can reduce the number of wires used and can achieve the effect of reducing the required voltage. . Referring to Figure 2A, there is shown a schematic view of a common electrode member in a direct-type common electrode illumination device in accordance with a preferred embodiment of the present invention. The common electrode member 200 has a plurality of electrically conductive in-line conductive vias 2, and the in-line conductive vias 2 10 are electrically connected to each other. The common electrode member 2 〇 可 can be an integrally formed electrical conductor. Please refer to both Figures 2A and 2B. Figure 2B is a schematic illustration of a direct-type common electrode illumination device in accordance with a preferred embodiment of the present invention. The direct-type common electrode illumination device 22 is used in a TFT-LCD to illuminate the panel of the tcTFT-LCD. As shown in the figure, a plurality of bare lamps 230 are respectively sleeved in the in-line conductive holes of the high-voltage terminal common electrode member 2 〇 2 and the low-voltage terminal common electrode member 2 04 . The high voltage end common electrode member 2〇2 and the low voltage end common electrode member 220 are respectively coupled to the power supply device 2 5 〇 and coupled to the ground. It can be seen from the above that the function of the common electrode member is three: one is used as an external electrode. Secondly, the plurality of bare lamps 230 can be fixed, and each of the bare tubes 2 30 can have a fixed relative position to enable uniform illumination to illuminate the panel of the TFT-LCD. The third is that each bare lamp tube 230 does not need to pull the wire separately from the power supply device 250 and ground, as long as the high voltage terminal common electrode member 2 0 2 and the low voltage terminal common electrode member 04 04 respectively A wire is connected to the power supply unit 250 and connected to the ground, and all of the bare lamps 230 can be easily fixed to be illuminated at a position where they are to be fixed. Referring to Figure 2C, a schematic diagram of a direct-state common electrode illumination device capable of reducing the supply voltage in accordance with a preferred embodiment of the present invention is shown.

TW TW0988F(奇美).ptd Page 7 1274216__ V. Description of the invention (5) In the direct-electrode illumination device 260 which can reduce the supply voltage, a plurality of bare lamps 270 are sleeved on the high-voltage common electrode member 282. And low voltage end common electrode members 284, 286. Since the in-line conductive holes 21〇 (as shown in FIG. 2A) in the common electrode member are electrically connected, the portions of the bare lamp tube 270 that are sleeved by the high-voltage terminal common electrode member are The portions that are turned on and that are connected by the low-voltage terminal common electrode members are also turned on. Therefore, as long as a wire is connected from the high-voltage terminal common electrode member 202 to the power supply device 290, and the low-voltage terminal common electrode members 284, 286 are respectively connected to the ground to connect to the ground, thereby reducing the required The voltage of the light source, that is, the voltage supplied by the power supply device 290 to the bare lamp 270 can be reduced. The above-mentioned direct-type common electrode illumination device capable of reducing the supply voltage, sleeves an appropriate number of common electrode members at appropriate positions on the bare lamp tube 270 and allows the common electrode members to be connected to the power source in an appropriate manner. When the supply device is connected to the ground, the supplied voltage can be effectively reduced. The portion of the high voltage side common electrode member 282 shown in Fig. 2C can also be changed to a fixing member. The fixing member has in-line fixing holes which are not electrically connected to each other. Each of the bare lamps 2 70 is sleeved in the in-line fixing hole, and will be reinforced and fixed to have a fixed relative position. Corresponding to such a common electrode illumination device, the power supply device 29 at this time does not need to be connected to one of the original low-voltage terminal common electrode members 2 84 or 286, and the original low-voltage terminal common electrode member will become a high-voltage terminal. Common electrode parts. The other low voltage side common electrode member 2 8 6 or 2 8 4 is connected to the ground. The above-mentioned common electrode member and fixing member can be sleeved with the bare lamp according to the user's needs (for example, the power supply device can be reduced or the bare lamp tube can be fixed). Referring to Figure 3A, which is illustrated in accordance with a preferred embodiment of the present invention, page 8 TW0988F (Chi Mei). ptd 1274216 V. Inventive Description (6) Side-type common electrode illumination device common electrode member schematic diagram. The difference from the direct-type common electrode illumination device is that the common electrode member 3 〇0 of the side-type common electrode illumination device has a plurality of electrically conductive ring-shaped conductive holes 310 instead of having a plurality of Conductive in-line conductive via 2 1 0 (as depicted in Figure 2A). Similarly, the ring-shaped conductive holes 31 0 are also electrically connected to each other. The common electrode member 3 〇 亦 can also be an integrally formed electrical conductor. Please refer to both Figures 3A and 3B. Figure 3B is a pictorial diagram of a side-type common electrode illumination device in accordance with a preferred embodiment of the present invention. The common electrode illumination device 320 is matched with the backlight module and used in the LCD to illuminate the panel of the TFT-LCD. Multiple bare tubes 33〇 are also separately set

Connected to the electric hole of the common electrode part 3 〇 2 and the low-voltage end common electrode part 3 〇 4 . ^ V The function of the common electrode member is also to enable a plurality of bare lamps 3 3 〇 to be fixed, and each of the bare lamps 3 3 0 can have a fixed relative position to emit light, with a backlight module, and can Evenly illuminate the panel of the TFT-LCD. Another function is that each bare lamp tube 3 30 does not need to pull the wires separately from the power supply device 350 and the ground, but only by the high voltage end common electrode member 2, the low voltage end common electrode member 3 0 4 respectively A wire, that is, can be connected to the power source, the supply device 350 and connected to the ground, and all the bare lamps 33 〇 can be easily fixed to the position where it is to be fixed. & Please refer to FIG. 3C, which is a schematic diagram of a common-electrode illumination device capable of reducing the supply voltage according to a preferred embodiment of the present invention. Electrode lighting device 3 6

1274216 Description of the invention (7) 1 lamp official 37G is sleeved on the high-voltage terminal common electrode member (10) and the low-voltage terminal common electrode member, 3 86: due to the ring-shaped conductive hole 31 in the common electrode member (such as the first - All of the bare lamps are electrically connected. Therefore, the portions of the bare lamps that are connected by the high voltage end: the electrode members are all turned on, and the portions that are covered by the low voltage end common electrode members are also turned on. Therefore, only f is connected to the power supply device 39 by a high-voltage terminal common electrode member 38 2, and the wires are connected to the ground by the low-voltage terminal common electrodes 384 and 386 respectively, and the bare lamp is supplied. The supply voltage can be reduced. The same as the direct-type common electrode illumination device, the above-mentioned common-electrode illumination device capable of reducing the supply voltage, splicing an appropriate number of common electrode members at appropriate positions on the bare lamp tube 370, and making these The common electrode member is connected to 390 and grounded in an appropriate manner, so that the supplied voltage can be effectively reduced. The device is the same as that shown in FIG. 2C, and the high voltage terminal electrode member shown in FIG. 3C is shown. The part of 382 can also be changed to a fixed part. The fixing member has a ring-shaped fixing hole which is not electrically connected to each other. Each of the bare lamps 3^0 is sleeved in the annular fixing hole, and will be reinforced and fixed to have a fixed relative position. Corresponding to such a common electrode illumination device, the power supply device 39 0 at this time needs to be connected to one of the original low-voltage end common electrode members 3 84 or 38 6 , and the low-voltage terminal common electrode member becomes a high voltage at this time. End common electrode parts. The other low side common electrode member 3 86 or 384 is connected to the ground. The above-mentioned common electrode member and fixing member can also be sleeved according to the user's needs (for example, the voltage supplied by the power supply device 390 can be reduced or the fixing of the bare lamp tube can be considered). It can be seen from the above that the common electrode illumination device provided by the present invention includes

1274216

丨I丨丨丨» _·ΜΙ··111 _丨_丨I V. Description of invention (8) Straight-type common electrode illumination device and side-type common electrode illumination device) The focus is on the use of common electrode parts The bare tube acts as the outside of the bare tube. (Power supply electrode and ground electrode), so that all bare lamps can be electrically connected to each other through the common electrode member. This division can make it necessary to separate the wires from the bare lamp to the power supply device and the ground, and the changed common electrode member pulls the wire to the power supply device and the ground, and the number of wires can be obtained. In addition, the voltage supplied by the power supply device can be effectively reduced. 1. The common electrode device also has a fixed bareness: the official has a fixed relative position between the tubes. And Lu, it should be noted that the geometry of the common electrode lighting device in the embodiment is only an example of the present invention, and is not limited to the 1f condition. Anyone familiar with the technology can adjust to achieve similar functions of the two. However, it does not depart from the spirit of the invention. The invention has the following advantages as disclosed in the above embodiments of the present invention: m, 'moon shackles, at least reducing the number of wires. · Each bare lamp tube is sleeved on the core electrode member. Therefore, as long as it is connected by the common electrode member, The electrode can be used, the number of wires can be reduced = wire to electricity / original supply device and connection itself; fixed ring bare tube: common electrode parts need to be fixed "two"; fixed relative position function Not fixed or shackled to fix. Socket i when: pressure: the appropriate position on the bare lamp is connected to the power supply to enable the common electrode parts to be placed in the appropriate square, and connected to the ground, so that the supplied voltage can be TW0988F (奇美).ptd Page 11 1274216_ V. Description of invention (9) Reduced efficiency. In the above, the present invention has been described above in a preferred embodiment, and is not intended to limit the invention, and various modifications may be made without departing from the spirit and scope of the invention. And the scope of the present invention is defined by the scope of the appended claims.

TW0988F(奇美).ptd Page 12 1274216 Schematic description of the drawing [Simplified drawing of the traditional drawing of the first straight picture 1B drawing of the traditional side 2A drawing of the electrode lighting device 2B drawing electrode lighting device Figure 2C depicts the voltage direct type 3A, the electrode illumination device, the 3B, the electrode illumination device, the 3C, the side of the voltage, the side of the voltage, and the use of the illumination device, which is based on the Chinese electrode. The illustrations according to the common electrodes are shown in accordance with the schematic diagram of the CCP electrode according to the schematic diagram of the common electrode on the TFT-LCD to illuminate the panel of the TFT-LCD. In the TFT-LCD, the structure of the panel of the TFT-LCD is illuminated. A schematic diagram of a direct type of common component of a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION A preferred embodiment of the present invention can reduce the schematic of a power supply lighting device. A schematic diagram of a side-by-side common component of a preferred embodiment of the present invention. Side Views of Preferred Embodiments of the Invention A preferred embodiment of the present invention can reduce the schematic of a power supply lighting device. Schematic description 1 0 0 : Direct type lighting device 110, 160: External electrode tube 23 0 > 27 0 > 33 0, 370 · Bare lamp 1 2 0 : Fixing frame 122 : Fixing groove

TW0988F(奇美).ptd Page 13 1274216_ Simple illustration of the diagram _ 1 5 0 : Side illuminator 1 7 0 : 0 ring 1 8 0, 2 5 0, 2 9 0, 3 5 0, 3 9 0 : Power supply unit 2 0 0, 3 0 0 : Common electrode part 2 0 2, 2 8 2, 3 0 2, 3 8 2 : High voltage terminal common electrode parts 204, 284, 28 6、304, 384, 386: low voltage End common electrode member 2 1 0 : in-line conductive hole 2 2 0, 2 6 0, 3 2 0, 3 6 0 : common electrode illumination device 3 1 0 : ring-type conductive hole

TW0988F(奇美).ptd第14页

Claims (1)

JI7 per lacquer 、6, application i range 1 · A direct-type common electrode lighting device for use in a thin film transistor-liquid crystal display (TFT-LCD) to illuminate the thin film transistor The panel of the liquid crystal display comprises: a plurality of common electrode members each having a plurality of electrically conductive in-line conductive holes, wherein the in-line conductive holes are electrically connected to each other; and a plurality of light emitting members, the light emitting members are The sleeves are respectively sleeved in the in-line conductive holes. 2. In the above 3. In the 3., the terminal is electrically connected, and in the 4· the 5· is further encapsulated, the 6. liquid crystal includes: the common electrode illumination as described in claim 1 of the patent scope The device, the common electrode member is an integrally formed electrical conductor. The common electrode illumination device according to claim 1, wherein the two-terminal electrode member comprises a high-voltage end common electrode member and a low-voltage electrode member, and the high-end end of the thunder is engaged in a handle The system is coupled to a power supply device and is coupled to the ground. For example, the common electrode lighting device described in item 1 of the patent application is a bare lamp. a common electrode comprising a fixing member, wherein the fixing member has a plurality of in-line columns, and the light-emitting members are sleeved in the in-line fixing holes of the in-line fixing holes. a side-type common electrode illumination device for illuminating a thin film transistor liquid crystal display and a film electro-ceramic panel, a conductive hole 'the U type; a column type and 1274216 Sixth, the scope of application for patents A plurality of light-emitting parts, which are in the conductive holes. The system is not sleeved in the ring type 7 · The common electrode illuminating device of the common electrode member 俜__ ρ, jin, as described in the sixth paragraph of the patent application, +, 々, wherein the patent scope is the sixth item The common electrode illumination f is set to include a high voltage end, a moon coat, and the t electrode member 'the high voltage end common electrode part is connected; the electric low end end of the low voltage end common electrode The parts are connected to the ground. Power supply device, in: This is the common electrode illumination device described in claim 6 of the patent application, wherein the light-emitting devices are bare lamps. The common electrode lighting device of claim 6, further comprising a fixing member having a plurality of ring-shaped fixing holes, wherein the light-emitting members are sleeved in the ring columns Fixed holes in the hole. 11 . The common electrode illumination device according to claim 6 , wherein the thin film transistor liquid crystal display further comprises a backlight module (back 1 1 ght un 11 ), the common electrode lighting decoration system and the edge Backlight module with 〇