摘要:
There is provided a display panel assembly structure capable of achieving a highly reliable connection even when fine-pitch electrode terminals are employed. A second electrode terminal is embedded in a flexible printed circuit board, and protrudes slightly from the flexible printed circuit board within a range of 0 to 2.times.10.sup.-3 mm. By embedding the second electrode terminal in the flexible printed circuit board, an apparent thickness of the second electrode terminal is reduced while keeping the rigidity of the second electrode terminal to thereby improve etching accuracy of a top surface thereof. With the reduction of the protrusion amount of the second electrode terminal, a ratio of a thickness of an anisotropic conductive film to a diameter of a conductive particle can be made to be approximately "1". With the above-mentioned arrangement, the flow of the conductive particles is suppressed to prevent the possible reduction in amount of the conductive particles between a first electrode terminal and the second electrode terminal and further prevent the conductive particles from flowing into a space portion between adjoining first and second electrode terminals. A highly reliable connection between the panel having the fine-pitch electrode terminals and a circuit board can be achieved.
摘要:
A panel having a plurality of electrode terminals disposed along a peripheral portion of one surface thereof is assembled at small size, less weight, and low cost. Flexible wiring boards on which a drive IC is mounted are connected to the electrode terminals, and circuit wiring is connected to the flexible wiring boards. On both sides of the peripheral portion of the panel, a first junction terminal and a second junction terminal are provided. By a first circuit wiring, the second junction terminal corresponding to one flexible wiring board is connected to the first junction terminal corresponding to another flexible wiring board adjacent to the flexible wiring board. An input terminal, output terminals, and a third junction terminal that lead to the drive IC are provided at places corresponding to the various terminals on one surface of the flexible wiring boards. By the second circuit wiring, the input terminal is connected to the third junction terminal. The corresponding terminals are connected to each other by overlapping the flexible wiring boards on the peripheral portion of the panel.
摘要:
A panel having a plurality of electrode terminals disposed along a peripheral portion of one surface thereof is assembled at small size, less weight, and low cost. Flexible wiring boards on which a drive IC is mounted are connected to the electrode terminals, and circuit wiring is connected to the flexible wiring boards. On both sides of the peripheral portion of the panel, a first junction terminal and a second junction terminal are provided. By a first circuit wiring, the second junction terminal corresponding to one flexible wiring board is connected to the first junction terminal corresponding to another flexible wiring board adjacent to the flexible wiring board. An input terminal, output terminals, and a third junction terminal that lead to the drive IC are provided at places corresponding to the various terminals on one surface of the flexible wiring boards. By the second circuit wiring, the input terminal is connected to the third junction terminal. The corresponding terminals are connected to each other by overlapping the flexible wiring boards on the peripheral portion of the panel.
摘要:
A flat type display device is assembled compactly with high reliability. The flat type display device has a liquid crystal panel having electrode terminals on a peripheral portion of one face of the liquid crystal panel, a flexible wiring board having a drive IC mounted thereon for driving the liquid crystal panel, and a common wiring board having electrode terminals on one face thereof. The flexible wiring board is electrically connected to the electrode terminals of the liquid crystal panel. The common wiring board is electrically connected to the flexible wiring board so as to transmit an input signal, which has been received by the electrode terminals from external, to the drive IC. The liquid crystal panel and the common wiring board are mounted on each other so as to overlap each other in a state that their faces on which their respective electrode terminals are provided are opposed to each other and that the electrode terminals of the common wiring board are located outside of a peripheral portion of the liquid crystal panel. The flexible wiring board is provided in a clearance between the liquid crystal panel and the common wiring board.
摘要:
A flat type display device is assembled compactly with high reliability. The flat type display device has a liquid crystal panel having electrode terminals on a peripheral portion of one face of the liquid crystal panel, a flexible wiring board having a drive IC mounted thereon for driving the liquid crystal panel, and a common wiring board having electrode terminals on one face thereof. The flexible wiring board is electrically connected to the electrode terminals of the liquid crystal panel. The common wiring board is electrically connected to the flexible wiring board so as to transmit an input signal, which has been received by the electrode terminals from external, to the drive IC. The liquid crystal panel and the common wiring board are mounted on each other so as to overlap each other in a state that their faces on which their respective electrode terminals are provided are opposed to each other and that the electrode terminals of the common wiring board are located outside of a peripheral portion of the liquid crystal panel. The flexible wiring board is provided in a clearance between the liquid crystal panel and the common wiring board.
摘要:
To realize a liquid crystal display device of such a packaging structure that a drive voltage can be supplied to TCPs without being seriously affected by a voltage drop caused by an increased resistance of wires despite a growth in size of a liquid crystal panel, the liquid crystal panel includes: source TCPs connected to source wires; and a circuit substrate for supplying a liquid-crystal-drive signal to the source TCPs. Between the source TCPs, there are provided: transmission panel wires for transmitting the signal supplied by the circuit substrate sequentially from one source TCP to the next; and a flexible substrate for stabilizing the signal transmitted via the transmission panel wires.
摘要:
A sealing technique is disclosed by which the firing voltage of atmospheric discharge is increased by a pressurizing procedure such that the internal pressure of a sealing chamber is held at room temperature above half (0.5) of the atmospheric pressure even after the completion of sealing. Preferably, the pressurizing procedure is accomplished by a partial modification in the existing sealing facilities (for example, belt furnaces and low temperature furnaces). In another aspect of the invention, the method for sealing a semiconductor device minimizes water in the chamber after sealing by suppressing water expelled from glass frit during sealing or allowing the glass frit to absorb the water expelled therefrom. In other words, sealing is performed first under nitrogen gas atmosphere and then under oxygen gas atmosphere.
摘要:
The display device includes a display panel and a plurality of wiring boards placed along the periphery of the display panel. The display panel has panel-side connection wiring for electrically connecting first and second wiring boards adjacent to each other among the plurality of wiring boards. Each of the plurality of wiring boards has an insulating base, a board-side wiring group running on the insulating base, and at least one driving circuit element for driving the display panel. The board-side wiring group is composed of element-connected wiring electrically connected to the driving circuit element and non-connected wiring having no electrical connection to the driving circuit element. The panel-side connection wiring is formed so that the element-connected wiring of the first wiring board and the non-connected wiring of the second wiring board are electrically connected to each other.
摘要:
An anisotropic conductive material body includes an insulating medium; and a plurality of conductive members dispersed in the medium. At least a surface of each of the plurality of conductive members is conductive. A force is applied to at least one of the plurality of conductive members so as to change the at least one conductive member, so that the conductive property of the anisotropic conductive material body provided by the at least one conductive member is changed to an insulating property.
摘要:
A display module, in which panel electrode terminals of a display panel are bonded to pattern terminals of a Cu foil pattern of a flexible wire board by using an anisotropic conductive adhesive, has a solder resist for protecting the Cu foil pattern on a base material of the flexible wire board so that the solder resist is extended inside the display panel while having the flexible wire board connected to the display panel. Therefore, even when the flexible wire board is used in a bent state, poor connection is surely prevented while conveniently suppressing a break in wire of the Cu foil pattern when bent, thereby attaining a highly reliable display module.