TW494295B - Computer with illuminator for keyboard - Google Patents

Abstract

To provide a computer equipped with an illuminator for a keyboard. In a portable computer 100, an LED holder 150 is provided in the upper portion of an LCD 109 and an ED is attached inside the LED holder 150. Light emitted from the LED passes through an aperture provided in the bottom portion of the LED holder 150 and illuminates a keyboard 103.

Description

494295 V. Description of the Invention (l) Field of the Invention The present invention relates to a battery-driven brain having a light source for lighting a keyboard. ≪ Electricity Background of the Invention Portable computers are superior in portability because they are small in size and light in weight, and by assembling a battery inside

Can be used anywhere, regardless of commercial power. Generally, two: Computers provide liquid crystal displays (LCDs), and many devices / batteries have been made to economically consume power. Since computers have been commonly used in offices and civil engineering locations in recent years, there is a growing demand for computers in dark environments such as airplanes or J-living rooms. In order to use the computer, the user needs to operate the keyboard and pointing device when viewing the LCD. Because most LCDs are back-tested—backlighting is provided, the screen can be viewed even when the user's surroundings are dark. However, since the keyboard and the pointing device do not emit light unless they use fluorescent paint or materials, the user cannot visually recognize the key position or the letter above the key in the dark, so in addition to being able to handle the computer without relying on vision Other than experienced users, users cannot fully use the computer in such an environment. In addition, the backlight of the LCD does not provide enough illumination to operate the keyboard.

The public application number for unviewed public mode is No. 59-4493 (the founders of the device, Su ^ ganuma and Ya j ima) reveal the technology of providing illuminators and lighting keyboards in electronic equipment such as electronic board: As shown in Figure 1. The illuminator is provided above the front surface of the register, and the keyboard can be illuminated when the register is used. However, this electronic register is not portable

Page 5 494295 V. Description of the invention (2) Belt type, but it is an installation type and is based on the assumption that commercial power is available. In addition, the light source shown in FIG. 1 is regarded as white heat electron light. The published unexamined patent application No. 8-3, 4 5 9 8 (device founder, Sugawara) reveals the technology for lighting a personal computer (PC) keyboard, as shown in Figure 2. The light source is arranged between the keyboard and the display section and is attached to the PC body. In addition, the light source is partially covered, so light is not emitted to places other than the keyboard. Furthermore, in the previously mentioned specification No. 8-3 1 4 5 9 8 it has been stated that "other than that, when the light source is attached to the LCD display section, it may become possible in a dark place. The keyboard is visually recognized, but has the problem that (丨) a large-capacity light source is required because the liquid crystal section and the keyboard are illuminated and (2) if the liquid crystal section is backlit, the light enters the liquid crystal and interferes with the horizon ". == "Prerequisites—the specification No. 8- 3 1 45 98 has been taught, 'The light source to the liquid crystal section has been abandoned, because from the light source capacity and the point of view attachment point, it has Issues related to paragraph 1. The unopened patent application No. 1 published by Guanguan No. 7—2541 (Record 5) (Jin Ren, Shinomura and Sasaki) reveals the technology of creating off-light sources and illuminated keyboards in a note-sized PC. In In this publication, the light source can be divided into the main body of the PC and provided as a separate unit. "As mentioned above, the problem of the solution without attaching the present invention is as described above. The portable computer is superior in portability. Therefore, in the case of providing a light source for lighting the keyboard, it is important to choose a special method and type of illuminator, so it is also important to not attach the illuminator even to shorten the battery operation time for portability. Low .read

494295 V. Description of the invention (3) The above-mentioned traditional technology has shown the necessity of lighting the keyboard of a portable computer. However, as explained below, it is difficult to adapt these technologies, but the features of actual portable computers are being used. The public unreviewed public application number 7- 2 54 1 5 does not adapt the method of attaching the illuminator to the computer main body and adapts the detachable method. However, in this method, the light source needs to be carried separately from the computer. Therefore, this method cannot take advantage of the characteristics of a portable PC and the operation of detachably attaching the light source will also give the user

In the previously mentioned public unreviewed public application case number 8-3 1 45 98, the light source is configured between the keyboard and the LCD. Ran_

However, arranging the light source at this position will cause some problems. First, in a portable computer, when the user operates the keyboard, a large area on the side of the keyboard is used in order to determine to keep the palm-rest portion of the user's palm. For this reason, it is difficult to determine the light source space at the position shown in FIG. 2 in many cases. In addition, it is necessary to make the light source higher than the key top plane of the keyboard and provide a cover to illuminate the entire keyboard from the position shown in FIG. 2. For this reason, if an attempt is made to close the lid containing the LCD, the computer will become quite thick. Furthermore, because all the keyboards are illuminated with light sources arranged at the display position in Fig. 2, it is necessary to provide most point light sources or an elongated light source and the problem of battery power loss will arise. The previously mentioned publicly-reviewed unpatterned applications Nos. 1 and 5Θ-44Θ3 reveal light sources arranged above the display section, but do not disclose the specific idea of arranging light sources at the same location in the portable computer. Although this conventional technique reveals a light source

Page 7 494295 V. Description of the invention (4) The concept of the keyboard is explained, but there is no description of the specific method of disposing the light source on the upper part of the portable computer LCD. After all, the technique of illuminating a portable computer keyboard with a light source arranged above the LCD has been difficult and has not been realized so far. However, when the LCD is turned on to use the portable computer, there is no obstacle to capture the light between the upper part of the LCD and the keyboard, so observe the upper part of the LCD as the most effective position to illuminate the keyboard. However, since the distance between the light source and the keyboard becomes longer, it becomes important that the illuminator is a light source having a large luminous intensity and a low amount of energy loss. Even when the keyboard is illuminated by the upper part of the LCD,

It is necessary to make a plan carefully, so the visual recognition of LCD is not the direct light interference from the incident on the LCD. The present invention solves these problems and realizes the illumination of a portable computer keyboard that cannot be obtained with background art. Therefore ... The main purpose of the present invention is to provide a battery that can drive a computer and achieve superior lighting of a keyboard. The computer is equipped with a light emitting diode (LED) on a t portion of a display such as a liquid crystal display (lcd). More specifically, the purpose of the present invention = ίίί can be utilized and driven by a low-loss power battery operation = according to the invention and has no adverse effect on the visual recognition of the display

According to the first feature of the present invention, it is possible to provide a brain capable of having a keyboard and a display, including: = force: a LED bracket for electric edge, the bracket has a shape of a woman's clothing on the proximity display, and is mounted on the LED bracket wall The internal LED, where LE = wall; and the keyboard illuminated by the aperture. The light radiated by the led

494295 V. Description of the invention (5) First of all, in the present invention, a light source for light-emitting diode illumination. Generally, LEDs are already being displayed ^, and are selected for use in keyboards and have been used as display states. In addition, due to the relatively high luminous intensity of the S :: lighting device. However, it has developed over the years, so the LED of the inventor of this application has come close to the concept of computer keyboard lighting to solve the background technology: LEDs that are portable into keyboard illuminators will be assembled in the electrical / solved problem. Suitable for tiny, low-loss power and almost no shortening and electricity. In addition, the LED bracket is essentially attached to the display / $ LED is kept inside the LED bracket. This position is best suited for edge: and because there are no obstacles related to keyboard lighting. In addition, only single-point light sources can illuminate all keyboards with ‘[Light source’: and no: I ’m ready to count-point light sources, line light sources, or surface light sources. The wall of the LED bracket must have an aperture, and the light generated by the LED passes through the aperture and ^ to the keyboard. The light distribution through the aperture can be controlled by adjusting the position of the LED bracket and also the size and position of the wall of the LED bracket. According to the second feature of the present invention, part of the light radiated by the LED is masked by the wall of the frame, and the remaining light passing through the aperture does not directly reveal the keyboard. This situation can be achieved by appropriate choices such as a bracket construction, The bracket is attached to the position, aperture position, aperture size and similar factors. Therefore, the second form of the invention has solved the problem. When the light source is provided on the display, the light emitted by the light source will interfere with the visual recognition of the display: As the problem pointed out by Beijing Technology. As the third feature of the present invention, when the display is turned on, it stays at 494295 with the main body. 5. Description of the invention (6) __ Approximately 90 degrees. : Keyboard. When the user is using the computer, it is approximately 9G degrees early. Fake ... When the keyboard is illuminated at this angle, the keyboard is illuminated; = ... that the money back cover is further opened as the second specific = in this case also This is achieved by appropriately selecting, for example, parameters related to the aperture. As in the fourth feature of the present invention, the LED bracket is provided as a shutter with the entire opening degree. Therefore, < Adjusting the light according to the tilt of the display by the position of the positive hole: device. Cloth. Since it is completely shading, a 隹] is particularly effective in the brain, because there are many cases when the keyboard explanation is needed.… ~ Female as the sixth feature of the present invention, when the back cover is closed, the LED is closed =: the battery is to prevent damage to the axe by closing the back cover without closing the LED E * 0 Brief description of the diagram (a) and Is a schematic diagram showing a transmission with a keyboard illuminator; Ding recorder FIG. 2 is a schematic diagram showing a traditional personal computer with a sewing disk light source. FIG. 3 is a concrete example of a portable computer according to the present invention ^: FIG. 4 is a display Fig. 3 shows the f cover and ㈣ diagram 'exploded view; details of the sorrow and sorrow of the sword = u), (b), and (c) show the specific embodiment of the LED bracket shown in Fig. 4 (a) and (B) Sectional view of how 4_ * LED brackets are attached;

Page 10 494295 V. Description of the invention (7) Figures 7 (a) and (b) are diagrams for explaining the light distribution characteristics of the LED light held by the LED bracket; Figure 8 is a diagram for explaining the characteristics of light distribution; FIG. 9 is a cross-sectional view of an LED bracket with a shutter; and FIG. 9 is a circuit diagram of a specific embodiment of a light control circuit for turning on and off the LED bracket. The symbols say gg 101… the main body 103… the keyboard 105… the back cover 109… the liquid crystal display 150… the LED bracket 155 the light-emitting diode 161… a detailed description of the specific embodiment of the aperture FIG. 〇〇 concrete examples are also examples. The keyboard 103 is arranged on the upper surface of the main body 101 and is used to keep the palm of the user's palm parked when the user uses the computer. The keyboard 1 is arranged on this side of the keyboard. The back cover 105 is attached at one end to the end close to the main body 1 so it can be opened and closed. When the computer is not in use, the back cover 1 Q 5 plays the role of completely covering the keyboard 103 and the palm parking 111. The liquid crystal display is attached to the back cover 105 and the groove 107 is also attached to the back cover 105, so it covers the periphery of the LCD 109 and the back cover. When using the computer, the user rotates the back cover 105 to 90 degrees or a large angle relative to the main body 101 and when

494295 V. Description of the invention (8) Operate the keyboard 103 when viewing the LCD. The computer 100 also provides an LED bracket 150, which supports LEDs for keyboard lighting, and an internal LED switch 1 1 3. When the back cover 105 is opened, the user operates the switch 1 1 3 to illuminate the LED, so that the keyboard 103 can be illuminated. FIG. 4 explains the separated states of the back cover 105, the LCD 109, the groove edge 107, and the LED holder 150. A threaded circular protrusion 1 1 3 is provided internally for 盍 105 and an LED bracket 150 is attached to the circular protrusion 113 through the groove edge 107 aperture 11 17 and by a screw 1 1 5. The back cover 105 is formed with a circular protrusion 1 2 0 that attaches the LCD 109 to the back cover 105. The groove edge 107 is provided with a switch 113. FIG. 5 shows an enlarged view of the LED bracket 150. In FIG. 5A, the fixed portion 151 of the LED bracket 150 is attached to the circular protrusion 113. Fig. 5B shows a section view taken along the line A-A of Fig. 5A; Fig. 5c shows a bottom view shown in Fig. 5B. The LED fixing portion 159 extends inward from the side wall 157, and the central portion of the LED fixing portion 159 is provided with an aperture, so that the light emitting diode 155 can be inserted and fixed. The light emitting diode 1 5 5 is detached into the hole from the upper part and fixed to the LED bracket 150. In addition to this, as shown in FIG. 5C, the bottom portion 1 53 of the LED holder 150 is provided with an aperture. Part of the light generated by the LED 1 55 is captured by the bottom part 153, and the remaining part is emitted from the outside of the LED bracket 150 through the aperture 1 6 1. This specific embodiment has adapted the LED as a light source. Such as LED 155, for example, NEPWF50BS manufactured by Nichia Chemical Industry Co., Ltd. can utilize 155 to have a luminous intensity Q i8 cd and a power loss of 252 mW and therefore has a lower power loss sufficient to illuminate the keyboard. In addition, the cross section of the light-emitting part is as small as 2 X 4 mm and can be framed.

Page 12 494295 V. Description of the invention (9) In the LED bracket shown in Figure 5. 6%。 Because the battery capacity of the computer 1000 is 4800 mAh, the battery power consumption of the LED and battery capacity is about 1.6%. LED 1 5 5 can be operated with LE D 1 5 5 off for 3 hours under standard operating conditions, and even if LE D 1 5 5 is kept on under the same conditions, the operating time of the computer will be shortened by only about 3 minutes . FIG. 6 shows an attached state of the LED bracket 150 to the back cover 105. The LED bracket 150 and the LCD 1 09 are attached to the back cover 105 by a circular protrusion 1 1 3 and a circular protrusion 1 20, respectively. The groove edge 107 covers the periphery of the LCD 109 and the terminal portion of the back cover 105 and the attachment portion of the LED bracket 150. The groove edge 107 is provided with an aperture, so the bottom portion 1 53 of the LED bracket 150 appears in The outside of the groove edge In FIG. 6 (B), the size of the aperture 161, the distance between the aperture 161 and the LCD 109, and the angle of the bottom portion 1 5 3 with respect to the LCD surface are important. This reason is that these parameters become the main reason that determines the light distribution characteristics of the light radiated from the LED holder 150 downward. In this specific embodiment, the size of the aperture 161 is 4 mm X 2 mm, the distance from the LCD surface to the aperture 161 is 5 mm, and the angle of the bottom portion 153 with respect to the LCD surface is approximately 90 degrees. The light distribution prevents the light radiated by the LED 155 from directly illuminating the LCD surface, so the visual recognition of the LCD is not disturbed. Even when the 'light distribution characteristics' are determined, all keyboards are effectively illuminated within the predetermined tilt angle range of the back cover during the use of the computer. The setting of the first distribution feature will be described in detail below. Fig. 7 shows the light distribution characteristics of the light emitted from the frame cover 1 ^]) U5iLED bracket 150 in the computer 100. Figure M is a side view, and the back cover 105 is opened, so it is maintained at approximately 90 degrees from the main body 101. In the tilted state of the LCD, the closest

Page 13 Surface 494295 V. Description of the invention (10) The light 1 31 of LCD 1 06 is the closest to the keyboard end of LCD. The light 131 is determined by the angle of the bottom portion 1 53 of the LED bracket 1 59 relative to the LCD surface, the size of the aperture 1 61, and the distance between the aperture 1 61 and the LCD surface, as shown in FIG. 6B. In FIG. 7A, the light 131 has been explained, so the illumination is closest to that of the keyboard 103 of the LCD 107, but the explanation is already a light having an illuminance suitable for keyboard illumination. Actually, the weak light from the aperture 161 to the LCD 109 is also emitted. The dispersion of weak light will be explained with reference to FIG. 8. Part of the light emitted by the LE D bracket 150 includes weak light, such as weak light 135, moving in the direction of the LCD 109. However, in this specific embodiment, the above parameters, such as the size of the aperture 1 6 1 are determined. Therefore, the light 1 3 5 does not move beyond the coupling portion 1 37 between the back cover 1 5 and the main body 1 0 1. side. Therefore, and when the back cover is used at any time, one light will not be able to directly illuminate the LCD 109 and so it will not be possible to disturb the visual recognition of the LCD. Turn to Figure 7 again. The above parameters, such as the size of the aperture 1 6 1 and similar parameters, are determined. Therefore, when the back cover 105 is opened to 90 degrees, the farthest light 1 33 from the LCD 1 33 is the farthest from the LCD. Of the keyboard 103. Figure 7B shows a plan view of the computer shown in Figure 7A. As shown in Figure 7B, the light distribution characteristics are decisive. Therefore, when the back cover is opened to 90 degrees, all the keyboards are illuminated. When the back cover 105 is opened to less than 90 degrees, the computer 100 cannot be used. Generally, a computer is used in a range of 100 ° to 135 °. Therefore, the computer is often used with the position of FIG. 7A relative to the main body 101 being further turned on. If the inclination angle of the back cover 105 is gradually increased, the light beams 3, 3 and 3 move to the side of the main body 1 0 1 and move beyond the main body 1 0 1. However, all keyboards 103

Page 14 494295 V. Description of the invention (11) Lighting, so there is no obstacle to keyboard operation in dark environment. The amount of movement of the end of the line 1 3 1 is very small, so there is no obstacle to the illumination near the keyboard of the LCD. Figure 9 explains that the shutter 163 is provided inside the LED bracket to prevent the light 131 from moving beyond the main body 101 and the back cover gradually. Illumination unnecessary range when tilted. The shutter 163 is provided in the LED bracket 150, so it can be manually slid. The mechanism for manually sliding the shutter 163 may be a mechanism for extending the shaft of the shutter 163 from the LEI bracket 150 side wall 175 outwards and a mechanism for attaching a control adjuster to the shaft ’or any other known mechanism may be adapted. The sliding shutter 163 is preferably provided with a locking mechanism for locking the shutter 163 at any position. The shutter 1 6 3 completes the role of adjusting the opening angle 16 according to the tilt angle of the back cover 105. In this way, the switch control of turning on and off the LED in the specific embodiment is performed by the switch 113 shown in FIG. If LED 1 5 5 is always on, when switch 1 13 is on, there is a case where the back cover 105 is turned on and off by LED 155. To prevent this, the interlocked second switch 1 1 4 is opened and closed with the back cover 0 1 5 added to the light emitting control circuit, as shown in FIG. 10. L E D 1 5 5, switch 1 1 3 and second switch 11 4 are connected in series to the power source. The second switch 1 1 4 is only turned on when the back cover is opened. In this state, switch 1 1 3 is on or off, so LED 1 55 can be turned on or off. Advantages of the present invention-'As the present invention, it is possible to provide a computer in which LEDs for keyboard lighting are arranged on the upper part of the display which are not realized by the background art. This computer never reduces portability and enables low battery consumption and

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Claims (1)

494295 VI. Scope of patent application1. A device capable of rectifying both lightning and ice, including: a computer powered by a power source with a keyboard and a display installed near the display and including a wall containing an aperture; and a transparent LED bracket, the bracket There is an LED installed inside the wall of the LED bracket, which is lighted by the LED, and the benefits are illuminated. 2. If an application is specifically made, the keyboard is illuminated through the aperture. Ding Yue spear doesn't target the computer around item 1, 1 cover-part of the light radiated by the LED to avoid passing through; the wall of the bracket covers the display. 3. The light of the hole is direct. 3. If the computer in the scope of application for item i of the patent, its section is radiated by the LED, and the wall bracket of the second bracket is accompanied by 捭 A i. The key of the bathroom key is approximately 90 degrees, and the light passes through the aperture, π /, and the disc. — Illuminate the key separately on especially κ. 4 · If the computer in the scope of patent application No.1, its manual operation of the shutter to close part of the aperture. ° The bracket has a portable keyboard that can provide battery power on its upper surface, a cover on the lower side, and an edge on the rear side, and a liquid crystal display installed on the back to connect the main brain. Including: In the long moon, the portable electric bracket is installed near the center of the upper edge of the back cover, the bracket has a wall containing an aperture; and-the LED installed inside the wall of the LED bracket, where: Light emitted by the LED illuminates the keyboard by passing through the aperture. 6. If the portable computer in the scope of patent application No. 5 includes a switch for turning off the LED when the scope of patent application is closed, page 17 494295 6. 1 ^ 1 page 18