摘要:
It is an object of the present invention to provide an image display apparatus which enables cost reduction while being free from electromagnetic interference problems.A power supply circuit comprises, on a single circuit board, an AC inlet to which a power cord is connected from an external AC power supply, a filter circuit to which an inductance element is connected to suppress leakage of electromagnetic waves to the outside of the image display apparatus, and a switch which switches on/off an AC output supplied from the filter circuit. The circuit board of the power supply circuit is entirely covered by electromagnetic shielding means to shield electromagnetic waves. The electromagnetic shielding means is composed of, for example, a first shielding section which surrounds the lateral side of the circuit board and a second shielding section which covers the upper side of the circuit board. The second shielding section is formed of a part of the flat section of a rear cover of the image display apparatus.
摘要:
Disclosed is an optical filter having an electromagnetic shield capable of shielding unnecessary radiation of electromagnetic waves from a PDP, in which satisfactory reduction of undesired radiation is achieved even by employing a relatively low price optical filter. A plasma display apparatus of the invention includes: a conductive rear surface cover covering a rear surface of a plasma display panel; an optical filter provided with an conductive layer having a surface resistance of 0.5 Ω/square or above, which is disposed at the front surface of the plasma display panel and serves to reduce leakage of electromagnetic waves from the plasma display panel; optical filter protecting members electrically connected with the rear surface cover, for protecting/retaining the optical filter; and a conductive body having elasticity, which is interposed between the optical filter and the optical filter protecting member. A plurality of bosses are formed in the optical filter protecting members. A part of the elastic conductive body is compressed by the bosses and connection resistance with the elastic conductive body is reduced.
摘要:
A plasma display apparatus includes a conductive rear surface cover covering a rear surface of a plasma display panel; an optical filter provided with a conductive layer having a surface resistance of 0.5 Ω/square or above, which is disposed at the front surface of the plasma display panel and serves to reduce leakage of electromagnetic waves from the plasma display panel; an optical filter fixing member electrically connected with the rear surface cover, for at least retaining the optical filter; and a conductive body having elasticity, which is interposed between the optical filter and the optical filter fixing member. A plurality of bosses are formed in the optical filter fixing member. A part of the elastic conductive body is compressed by the bosses and connection resistance with the elastic conductive body is reduced.
摘要:
For improving a cooling efficiency of a display panel in a flat-type image display, various substrates and an image display element are disposed within a thin-sized housing thereof, including: a display panel; a chassis supporting the display panel from a rear surface side thereof; a front surface-side cover on a front side of the display panel; a rear surface-side cover on a rear side of the display panel; an image display element connected to the display panel; a display driver substrate connected to the display panel, and on a surface thereof opposite to the chassis are provided circuit parts; a power source substrate, supplying driving power to the display driver substrate and the image display element, and on a surface thereof opposite to the chassis are provided circuit parts thereof; and a first insulator board opposite to the display driver substrates and the power source substrate of the chassis.
摘要:
The present invention improves the reliability of a display apparatus by suppressing the temperature rise of the display apparatus mounted on a wall. The display apparatus is provided with a wall mount switch to detect a wall mount member if the wall mount member is attached to the rear of the display apparatus. If it is detected by the wall mount switch that the display apparatus is mounted on a wall, the display power supplied to a display unit is set lower than normal by a power controller. This suppresses the temperature rise of the apparatus mounted on a wall.
摘要:
A flat-type image display, such as, a plasma display, a LCD display, an OLED display, etc., in particular, for improving a cooling efficiency of a display panel, various kinds of substrates and an image display element, within the thin-sized housing thereof, comprises: a display panel; a chassis, which supports the display panel from a rear surface side thereof; a front surface-side cover, which is provided on a front side of the display panel; a rear surface-side cover, which is provided on a rear side of the display panel; an image display element connected with the display panel; a display driver substrate, which is connected with the display panel, and on a surface of which opposite to the chassis are provided circuit parts thereof; a power source substrate, which supplies driving power to the display driver substrate and the image display element, and on a surface of which opposite to the chassis are provided circuit parts thereof; and a first insulator board, which is provided at a position opposite to the display driver substrates and the power source substrate of the chassis.
摘要:
The present invention improves the reliability of a display apparatus by suppressing the temperature rise of the display apparatus mounted on a wall. The display apparatus is provided with a wall mount switch to detect a wall mount member if the wall mount member is attached to the rear of the display apparatus. If it is detected by the wall mount switch that the display apparatus is mounted on a wall, the display power supplied to a display unit is set lower than normal by a power controller. This suppresses the temperature rise of the apparatus mounted on a wall.
摘要:
It is an object of the present invention to provide an image display apparatus which enables cost reduction while being free from electromagnetic interference problems.A power supply circuit comprises, on a single circuit board, an AC inlet to which a power cord is connected from an external AC power supply, a filter circuit to which an inductance element is connected to suppress leakage of electromagnetic waves to the outside of the image display apparatus, and a switch which switches on/off an AC output supplied from the filter circuit. The circuit board of the power supply circuit is entirely covered by electromagnetic shielding means to shield electromagnetic waves. The electromagnetic shielding means is composed of, for example, a first shielding section which surrounds the lateral side of the circuit board and a second shielding section which covers the upper side of the circuit board. The second shielding section is formed of a part of the flat section of a rear cover of the image display apparatus.
摘要:
A backlight device includes light emitting diodes (LED's) and a plate-like light guide plate which guides light from the light emitting diodes to a liquid crystal panel. Grooves are disposed on the back of the light guide plate and the light emitting diodes are disposed in the grooves. The light emitting diodes disposed in the grooves are arranged so that light emission direction thereof is parallel with light emission plane of the light guide plate. First optical pattern is disposed on first side opposite to light emission plane of light emitting diodes and second optical pattern is disposed on second side opposite to the back of light emitting diodes. The optical patterns are formed into minute prism array or lens array, for example.
摘要:
The present invention provides a liquid crystal display module or a liquid crystal display device which can prevent the generation of display irregularities. In the liquid crystal display module which includes a liquid crystal display panel, a frame-like mold frame, alight guide plate, and a reflection sheet, the liquid crystal display panel is arranged on an upper side of the mold frame, the light guide plate and the reflection sheet are arranged on a lower side of the mold frame, the reflection sheet is adhered to the mold frame using an adhesive agent which is formed on at least two sides of the reflection sheet which face each other in an opposed manner, and a portion of one side of the reflection sheet on which the adhesive agent is arranged has a length larger than a length of a portion of another side of the reflection sheet on which the adhesive agent is arranged.