An arrangement for enhancing the observability of a multicolored liquid crystal display in a computer of the notebook type using an arrangement in which the top lid of the laptop is mechanically separated into a diffuser/reflective surface and the LCD in its frame, the diffusing/reflecting lid is attached through a slider and linkage arrangement permitting the diffuser/reflector to act as a flat field illuminator and to move in a plane, apart from, yet forming a dihedral angle with the plane of the LCD. The lid so positioned can opportunistically reflect ambient light through the plane of the LCD. Also, by causing the lid to project over the plane of the LCD, it secures a contrast-maintaining shadow otherwise bleached by light incident to the LCD viewing surface.

A highly portable information processing apparatus projects a hand-written input image in real time while the projected image is not hindered by the hand-writing operation. An image to be projected is displayed on a transmission type liquid crystal display provided in a main control unit and a light beam is projected from the bottom thereof. The light beam passes through lenses and is projected to a coordinate input plate and reflected thereby, passes through lenses, is reflected by a reflection plate and then projected to a screen. The coordinate input plate allows the viewing of the projected image from a plane opposite to the projection plane so that an operator may point a desired coordinate while watching the image. The pointed coordinate is displayed by a main control unit on the liquid crystal screen as an image. The projected light is not intercepted by an obstacle in a path to projection on the screen.

To the bottom of a display unit in a handy information terminal apparatus, a picture image scanner, a photographic camera or a printer may be physically and electrically mounted. Signal transfer is carried out between the handy information terminal apparatus and each of the scanner, the camera or and the printer. The handy information terminal apparatus is of a size which makes it easy to carry the handy information terminal apparatus and is combined with the scanner, the camera or the printer. The handy information terminal apparatus can be easily mounted on the scanner, the camera or the printer and obtained information can be accurately transmitted therebetween.

An apparatus has a body having a channel. A display support member has a first end pivotally coupled to the body and a second end. A display housing has a bottom portion. The display housing is pivotally coupled to the second end of the display support member. A first latch member is coupled to the bottom portion of the display housing. The first latch member is adapted to be received by the channel and hold the display housing.

An information processing apparatus is provided with a main body including a key-control section, a connecting section rotatably provided with respect to the main body and an input display section which is rotatably connected to the connecting section and enables pen-input. The information processing apparatus is capable of taking three positions: a stored position, a key-input position and a pen-input position. The center of rotation of the input display section and the connecting section is set at the back of the input display section. The connecting section serves as a stopper for controlling the rotating movement of the connecting section, and enables the rotatable range of the input display section to be controlled within 180.degree. without requiring a special mechanism. Thus, the input display section can be prevented from contacting the key-control section of the main body by over-rotating in the pen-input position. Moreover, since the input display-section is supported by the connecting section, the input display section can be held in stable conditions both in the key-input position and in the pen-input position.