TW432239B - Optical arrangement for flat-panel displays - Google Patents

Abstract

A flat-panel display comprises a backlight for producing narrowband activation light; a means such as a liquid-crystal modulator 21 for modulating the activation light; and a photo-luminous output screen 23 which emits visible light in response to the activation light. Instead of the activation light simply passing through the modulator onto the screen, an optical arrangement 22 is interposed between the modulator 21 and the output panel so as to project an image of the modulator onto the output screen. This reduces the requirement for collimation of the activation light.

Description

M432239

M432239

M432239

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Figure 5B M432239

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2.00 4.00 6.00 8.00 10.00 12.00 Resistance value of the variable resistor (ohm) Figure 8 M432239 __ March 13, 2011 Correction and replacement page-V. New type description: * [Technical field to which the new type belongs] This creation is about a shaft device, In particular, a rotating shaft device incorporating a variable resistor. [Previous technology] At present, most of the existing notebook computers adopt an open structure design between the display screen and the main body of the notebook computer, and when the display screen is in a closed state (meaning that the display screen cover is pressed on the main body of the host computer) ), The display screen will enter the so-called "sleep state" to reduce the brightness of the display screen, thereby saving power consumption. However, most notebook computers currently use a combination of Hall Sensor and magnet to detect whether the cover is on the lid. However, this type of sensing method has its shortcomings: The sensing method described above can only be done within a certain angle. Second, when other magnetic substances are close to the sensor, the sensor will also mistakenly think that the display screen is close to the main body and enter the sleep state because it feels magnetic force. So that it is quite inconvenient in use. Therefore, it is necessary to invent a new shaft device to improve the problems encountered in the prior art. [New content] The main purpose of this creation is to provide a shaft device combined with a variable resistance design and an electronic device with the shaft device. In order to achieve the above purpose, the rotating shaft device of this creation is set on an electronic device. The electronic device includes a cover and a base, and the cover can be rotated relative to the base by the rotating shaft 3 =. Rotary shaft mounting bracket and variable electric shaft, shaft bracket, base bracket, bracket are connected to the shaft and cover: and base; cover and cover bracket ==: moving part and fixed part, which can move With the movement, when the Wei Wei frame moves with the cover, the movable part is cut to change the resistance of the variable resistor. ^ According to the embodiment of this creation, it is connected to the shaft hole, which is for the shaft to wear: The connection between the resistance system and the shaft rod 'The creation of this creation further includes the connection between the connection system and the cover bracket by the connection member. Hole, ==: The cover bracket of this creation includes _ According to the actuality of this creation, the bottom pure frame of this creation includes holes, which are used for the shaft to pass through the teeth. According to the embodiment of this creation, the shaft The rod further includes at least one fixing recess, and at least the fixing recess is used for fixing the variable resistance of the base bracket and the cover bracket. The electronic device of this creation includes a cover, a base, and the above-mentioned rotating shaft; by changing the variable resistance impedance on the rotating shaft device, the voltage value or current value of the resistor can be changed, so that the electronic device can be Voltage or current value to determine the opening angle between the cover and the base.

Because this creative structure is novel, it can provide industrial use, and it does have an increasing effect, so it applied for a new patent in accordance with the law. B [Embodiment] In order to make the above and other purposes, features, and advantages of this creation more obvious and understandable, the following specifically lists the specific embodiments of this creation and cooperates with the attached drawings, 4 M432239 _ March 13, 2011 Day Correction Replacement Page-Details are explained below. Please refer to FIGS. 1 to 4 for the structure of the electronic device and the shaft device of this creation. Figure 1 is a side view of the electronic device and the hinge device of this creation; Figure 2 is a perspective view of the shaft device of this creation; Figure 3A is a perspective view of the shaft of the shaft device of this creation; Figure 3B is about this An exploded view of the shaft of the creative device; Figure 4 is an exploded view of the creative device. As shown in FIG. 1, in one embodiment of the present invention, the electronic φ device 90 of the present invention includes a cover 91, a base 92, and a rotating shaft device 1. The rotating shaft device 1 is installed in the electronic device 90, and the cover 91 can be rotated relative to the base 92 by the rotating shaft device 1. The hinge device 1 includes a base bracket 20 and a cover bracket 30, wherein the base bracket 20 is connected to the base 92, the cover bracket 30 is connected to the cover 91, and the cover bracket 30 is connected when the cover 91 is rotated. It can rotate with it. As shown in FIG. 2, in one embodiment of the present invention, the shaft device of the present invention further includes a shaft 10, a variable resistor 40 and a connecting member 50. φ As shown in FIG. 3A, in one embodiment of this work, the shaft 10 of this work is composed of four parts, which includes a lever body 11, a first lock member 12, a second lock member 13, and a first Three fasteners 14, wherein the rod body 11 can pass through each of the fasteners 12, 13, 14 and after assembly, the fixing recesses 15¾ 15b, 15c will be formed between the fasteners 12, 13, 14 (as shown in FIG. 3B) ) To fix other components. As shown in FIG. 4, in one embodiment of the present invention, the base bracket 20 includes a perforation 21 for the rod body 11 to pass through, so that the base bracket 20 can be fixed to the rod body 11 and the first locking member. Between 12 (that is, fixed on the fixed 5 M432239 shown in Figure 3B _ March 13, 101 amend the replacement page fixing recess 15a). The cover bracket 30 includes a shaft hole 31 and a hole 32, wherein the shaft hole 31 is used for the rod body 11 to pass through, so that the cover bracket 30 can be fixed between the first lock member 12 and the second lock member 13. (That is, fixed on the fixing recess 15b shown in FIG. 3B).

The variable resistor 40 includes a movable portion 41, a fixed portion 42, a shaft hole 43, and two transmission lines 45. The shaft hole 43 is used for penetrating the rod body 11 so that the variable resistor 40 can be fixed between the second locking member 13 and the third locking member 14 (that is, fixed on the fixing recess 15c shown in FIG. 3B). The two transmission lines 45 are electrically connected to the movable portion 41 and the fixed portion 42, respectively, so that the two transmission lines 45 are used to supply the voltage or current of the variable resistor 40. The movable portion 41 includes a jack 412 and a knob 414, wherein the knob 414 is used to control the impedance of the variable resistor 40. The connecting member 50 connects the movable portion 41 and the cover bracket 30. In one embodiment of the present invention, the connecting member 50 is a rod body, one end of which is connected to the jack 412 and the other end of which is connected to the hole 32 for When the connecting member 50 rotates with the cover bracket 30, it can drive the movable portion 41 to rotate to change the position of the knob 414 to change the impedance of the variable resistor 40. It should be noted that the above-mentioned implementations only exemplify the preferred embodiments of this creation. To avoid redundant descriptions, all possible combinations of changes are not detailed. However, it should be understood by those of ordinary skill in the art that each of the above-mentioned elements or structures may not necessarily be necessary. In order to implement the present invention, other detailed elements may be included, and each element or structure may be omitted or modified as required. For example, the connection between the base bracket 20 and the shaft 10 is not limited to the above manner, and the two can also be made by integrally forming the connection, and the structure of the shaft 10 is not limited to the above. The shaft 10 can also be 6

Claims (1)

M432239 On March 13, 101, amend the current value of the replacement page to determine the opening and closing angle, and then decide whether to stop the current operation. It should be noted that although this embodiment is based on sensing the current to determine the opening angle, this creation is not limited to this. For example, the variable resistor 40 can also be given a fixed current, and the opening angle can be determined by sensing the voltage change across the variable resistor 40. Depending on whether the fixed resistor is supplied to the variable resistor 40 or not, Depending on the current. Finally, please refer to FIG. 7 and FIG. 8 together. Figure 7 is the relationship between the opening angle between the cover and the base of this work and the resistance value of the variable resistor; Figure 8 is about the resistance value of the variable resistance of this work and the φ detected by the electronic device Relation diagram of current value. As shown in FIG. 7, FIG. 7 shows the relationship between the opening angle Θ and the resistance value of the variable resistor. The vertical axis shown in the figure represents the opening angle Θ, and the unit is degree; the horizontal axis indicates the resistance of the variable resistor. Value in Ohm. According to the embodiment described above, when the opening angle 0 is larger, the resistance value of the variable resistor is larger, and the two may be a linear proportional relationship or a specific functional relationship. Taking the figure as an example, when the opening angle 0 is 90 degrees, the impedance value is 2 ohms, and when the opening angle is 45 degrees, the impedance value is 8 ohms. The larger the angle, the larger the impedance value. It should be noted that the relationship between the impedance value and the opening angle is not limited to this embodiment, and this creation can also be designed as an inverse relationship. As shown in FIG. 8, FIG. 8 is a graph showing the relationship between the resistance value of the variable resistor and its current value, wherein the vertical axis represents the current value of the variable resistor in Ampere; the horizontal axis represents the resistance of the variable resistor Value in Ohms. According to the embodiment of this creation, a fixed voltage is applied across the variable resistance of this creation. Therefore, when the resistance value of the variable resistance is changed with the opening 8 M432239 _ March 13, 101 revised replacement page-angle As Θ increases, according to Ohm's Law, the current value of the variable resistor will decrease accordingly, and the two are inversely related. For example, given a fixed voltage of 1.44 Ford (Volt), when the opening angle is 0 degrees, the impedance value is 2 ohms, then the current value is 0.72 amps; and when the opening angle is 45 degrees, the impedance value is 8 ohms, the current value is 0.18 amps. Therefore, the electronic device of this creation can sense different current magnitudes through impedance changes, and then judge the opening angle. However, it should be noted that the data described in the above is just an example, and this creation should not be limited to this, and the opening angle (9 also φ is not limited to the 90 degrees listed, it can also be greater than 90 degrees In summary, regardless of the purpose, method and effect, this creation shows its characteristics that are quite different from the conventional technology. However, it should be noted that many of the above-mentioned embodiments are just examples for the convenience of explanation. The scope of the rights claimed in the creation should be based on the scope of the patent application, and not limited to the above-mentioned embodiments. [Simplified illustration of the drawings] Figure 1 is a side view of the electronic device and the shaft device of the creation. ^ Figure 2 is a perspective view of the shaft device of this creation. Figure 3A is an exploded view of the shaft of the shaft device of this creation. Figure 3B is a perspective view of the shaft of the shaft device of this creation. Figure 4 is an exploded view of the shaft device of this work Figure 5A is a side view of the cover of the electronic device of this creation when it is opened. Figure 5B is a schematic diagram of the equivalent circuit of the variable resistor of this work when the cover is open. Figure 6A is the cover of the electronic device of this work When not open View 9