JP4381388B2 - Panel type television and panel type video display device - Google Patents

Description

The present invention relates to a panel-type television and panel-type image display apparatus including a menu for the operation to display the operation items on the screen.

In order to operate the TV, it is necessary to use a dedicated remote control for the set. Therefore, if the remote control is lost or broken, it is necessary to order the same one again or purchase a multi-remote control or the like. In addition, it is necessary to prepare a plurality of keys corresponding to each function on the remote control, and a remote control code corresponding to each key is also required.
In view of such a background, in Patent Documents 1 and 2, a two-dimensional position sensor is provided in an image display device, the position of an electromagnetic beam such as a laser beam projected remotely is identified by the sensor, and a pointer cursor is displayed on the screen. And a position sensor-equipped video apparatus capable of selecting a menu on the screen.
Patent Document 3 discloses a configuration in which when laser light is projected onto a display unit such as a liquid crystal television with a laser pointer, the position of each pixel is detected by an optical sensor unit, and processing according to specific display is performed using this output. It is disclosed.
Further, Patent Document 4 discloses a remote control device that can move a screen cursor by using detection of an inclination sensor provided on a remote control.
However, in the laser light irradiation position detection described in Patent Documents 1 to 3 described above, it is necessary to provide a light receiving element for each pixel of the display panel, and an increase in cost cannot be avoided.
JP-A-6-102841 JP-A-6-102994 JP 2001-175413 A JP 2001-224084 A

  As described above, in a conventional panel-type video display device and panel-type television capable of remote control operation, it is necessary to prepare a plurality of keys corresponding to each function, and a remote control code corresponding to each key is also required. there were. In addition, when the remote control is lost or broken, it is necessary to order the same one again or purchase a multi-remote control or the like. Further, in the laser light irradiation position detection described in Patent Documents 1 to 3 described above, Since it is necessary to provide a light receiving element for each pixel of the display panel, and a new production line and parts are required, an increase in cost cannot be avoided.

  In view of the above problems, the present invention does not require an external remote controller including a remote controller dedicated to a set, and can be operated with a general-purpose laser pointer and the like, and a panel-type image display device capable of avoiding an increase in cost and The purpose is to provide a panel television.

In order to solve the above-mentioned problems, in the invention according to claim 1 of the present invention, a display panel having a flat display surface for displaying an image on a screen facing forward, and a video signal as an intermediate frequency signal received from a television broadcast A video output tuner, an A / D converter that converts the input video signal into a digital signal and outputs the digital signal, an interlaced video signal is converted into a progressive format, the video signal is scaled, and the display panel A scaler IC that generates and outputs image data for one screen to be displayed on the screen and data such as character information are input, and an on-screen display signal is generated based on the data such as the character information to generate a scaler. An OSD generation unit that outputs to an IC and superimposes the video signal, and outputs data such as character information to the OSD generation unit, and the display panel and the In a panel-type television including a microcomputer that controls a tuner, the A / D converter, the scaler IC, and the OSD generator, the display panel is disposed close to the front surface of the display panel, and is displayed on the display surface of the display panel. A front glass filter that can transmit light of a displayed image forward and includes a reflection structure that reflects laser light incident from the front sideways; and a surface of the front glass filter in the front glass filter. A plurality of light receiving elements that receive light that is transmitted substantially in parallel and output in accordance with the amount of light received, and whether one or more of the light receiving elements is receiving light based on the output of the light receiving element; And a light receiving information output unit capable of outputting position information of the light receiving element having the highest output among the light receiving elements arranged along the side surface. An optical sensor disposed substantially in contact with a side surface on which the laser light of the filter is reflected, and the reflection structure is formed on a side facing the display surface of the display panel, and the front glass filter The laser beam that is formed as an inclined surface between the steps of the staircase that approaches the display panel as it approaches one of the upper, lower, left, and right sides of the front panel, and is incident on the front glass filter substantially perpendicularly. When the microcomputer receives light reception information from the optical sensor, the microcomputer is configured with predetermined operation items corresponding to the position of the light receiving element in a region where the reflection structure of the display panel is formed. When a screen is displayed and the output of the light reception information from the optical sensor is interrupted, the position information immediately before the interruption is accepted and the position information is supported. An operation input for selecting an operation item is received, and a setting process corresponding to the operation item is executed.
In the invention according to claim 1 configured as described above, the laser light incident substantially perpendicular to the region where the reflection structure of the front glass filter is formed is reflected on the optical sensor by the reflection structure. The laser beam reflected in the direction of the arranged side surface and reflected by the light receiving element that constitutes the optical sensor receives light and outputs according to the amount of received light, and the light reception information output unit outputs light reception information and position information. The microcomputer receives the light reception information and the position information.

In order to achieve the above object, the panel-type video display device according to claim 2 is provided with a display panel whose video display surface is covered with a filter capable of transmitting light, and a predetermined video signal is input thereto. in the panel-type image display device for displaying on the display panel an image corresponding to the video signal Te is formed on the side facing the aforementioned display panel of the filter, the display closer to one side either of the filter A reflecting structure that is formed as a slope between each step of the staircase approaching the panel, and that reflects laser light that is irradiated substantially perpendicularly to the surface of the filter and substantially parallel to the surface; and a side surface of the filter And an optical sensor capable of receiving reflected light from the reflective structure, and a predetermined operation item corresponding to the position of the optical sensor on the display panel when the optical sensor receives the reflected light. When the reception of the reflected light is interrupted, the menu display means for displaying the screen and the operation input for selecting the operation item pointed to by the laser beam immediately before the interruption are accepted, and the operation item corresponding to the selected operation item is received. Operation item receiving means for executing setting processing is provided.
In the invention according to claim 2 configured as described above, the reflection structure reflects laser light irradiated substantially perpendicularly to the surface of the filter substantially parallel to the surface, and When the reflected light is received by the optical sensor, and the optical sensor receives the reflected light, the menu display means causes the display panel to display a predetermined operation item corresponding to the position of the optical sensor on the screen, and the reflected light. When the light reception is interrupted, the operation item receiving means receives an operation input for selecting the operation item pointed to by the laser beam immediately before the interruption, and executes a setting process corresponding to the selected operation item.

The upper SL reflective structure is formed in the side facing the aforementioned display panel of the filter, as the slope during each stage of the stairs approaching the display panel closer to the one side one of the filter The light that is formed and incident substantially perpendicularly to the filter is reflected substantially parallel to the filter.

Further, the upper Symbol slope may be configured to be formed at an angle of 45 degrees to the plane of the filter.
Further, the upper Symbol slope may be configured to be formed at an angle of 40 degrees to the plane of the filter.
Further, the upper Symbol slope may be configured to be formed at an angle of 50 degrees to the plane of the filter.
Further, the upper Symbol reflecting structure has a plurality of inclined surfaces located within the irradiation section of the laser beam may be configured configured by slope formed at a plurality of angles to the plane of the filter.

Further, the upper Symbol reflective structure is formed as a recess on the side facing the display panel of the filter may be configured is capable scatter the laser light.
Further, the upper Symbol light sensor may be configured to be disposed along one side of the filter.
Further, the upper Symbol light sensors, the surface of the filter may be configured to be identifiable position the position is incident of the laser beam at two dimensions.
Further, the upper Symbol reflective structure may have a structure formed in accordance with the non-light emitting portion of the display panel.
Further, the upper Symbol light sensors, substantially parallel to the surface of the filter, and may be configured to have a directivity to light incident from a direction substantially perpendicular to the side surface of the filter.

As described above, according to the present invention, since it is possible to operate the menu using a commercially available laser irradiation device such as a laser pointer, an external remote controller including a remote controller dedicated to the set is not required, and a general purpose It is possible to provide a panel-type video display device that can be operated with a laser pointer or the like and can avoid an increase in cost.
According to the invention according to claim 2-5, reflected by a simple structure for forming a stage filter, reflected light of light upon reflection can reflecting structure in the slope formed between the respective stages A panel type video display device capable of realizing the structure can be provided.
According to the invention of claim 6 , the step is formed in the filter, the light is reflected by the reflecting structure capable of reflecting the light at the slope formed between the steps, and the angle of the slope is plural. Accordingly, it is possible to provide a panel-type video display device that allows menu operations not only for users who are viewing from the front but also for users who are viewing from an oblique direction.
Further, according to the invention of claim 7 , since the light is reflected by the recess formed in the filter, it is possible to provide a panel type video display device capable of realizing the reflection structure with a simple structure. Become.
According to the invention according to claim 8, since it is sufficient to place the light sensor only on one side, it enables cost reduction, it is possible to provide a more inexpensive panel-type image display device and according to claim 9 According to the present invention, since the laser irradiation position can be specified on the entire surface of the display panel, a menu screen can be displayed on the entire surface of the display panel, and a large number of operation items can be displayed and selected at the same time. It becomes possible to provide.
According to a further invention according to claim 1 0, reflective structures are to be formed in accordance with the non-light emitting portion of the display panel, without being distorted when the light of the image displayed on the display panel passes through the filter, the user It is possible to provide a panel-type video display device that does not hinder the comfortable viewing of the user.
According to the invention according to claim 1 1, by causing the optical sensor having directivity, it is possible to provide a possible panel-type image display apparatus to perform the specific laser irradiation position more accurately .
Further as claimed in claim 1, in a more specific configuration, wherein except for the above configuration to claim 9, claims 2 to 8 and claim 1 0 ~ claim 1 1 in the same manner as the invention described above Needless to say, it works.

Hereinafter, embodiments of the present invention will be described in the following order.
(1) Schematic configuration of panel type television:
(2) First embodiment of the reflecting structure:
(3) Second embodiment of reflective structure:
(4) Microcomputer processing for OSD display:
(5) Summary:

(1) Schematic configuration of panel type television:
FIG. 1 is a perspective view showing a schematic structure of a liquid crystal television 100 as a panel type television and a panel type video display device according to the present invention.
As shown in the figure, the liquid crystal television 100 has a glass filter 55, a liquid crystal panel 20, and a substrate 40 in a resin television cabinet formed by a front cabinet 35 and a rear cabinet 30 from the front to the rear. It is comprised by accommodating these in this order. The front cabinet 35 is configured by a front surface having an opening 16 formed at a substantially central portion, and side surfaces extending substantially rearward from upper, lower, left and right sides of the front surface.

  The liquid crystal panel 20 has a flat display surface for displaying an image on a screen facing the front, and generally includes a panel portion and a backlight portion. The panel part is configured by layering members such as a polarizing plate, a glass substrate, a liquid crystal, a light guide plate, and a reflection plate, and the backlight part is a fluorescent light disposed near the upper and lower side edges of the light guide plate. Composed by a tube. The panel unit is connected to a microcomputer mounted on the substrate 40, and the backlight unit is connected to an inverter circuit similarly mounted on the substrate 40.

  In this embodiment, a liquid crystal panel is used as the display panel, but any display panel may be used as long as it is a flat type display panel, and of course, a plasma display panel (PDP) may be used.

  The front cabinet 35 covers the liquid crystal panel 20 from the front, and exposes the image display surface of the liquid crystal panel 20 to the outside through the opening 16. The rear cabinet 30 is connected to the rear end of the front cabinet 35 and covers the liquid crystal panel 20 and the substrate 40 from the rear.

The front glass filter 55 is disposed between the front cabinet 35 and the liquid crystal panel 20 and is formed of a transparent glass plate that transmits the light of the image displayed on the display surface of the liquid crystal panel 20 directly to the front. On the other hand, light incident from the front is reflected laterally by a reflection structure described later, but light incident on a portion where the reflection structure is not formed is transmitted as it is to the liquid crystal panel 20 positioned rearward. As will be described later, since the reflection structure is formed in a non-light emitting portion formed between the display cells of the liquid crystal panel 20, the video display of the liquid crystal panel 20 is not hindered.
FIG. 2 is a block diagram showing a schematic configuration of the panel television 100 according to the present embodiment. In the figure, a panel television 100 generally includes a tuner 10, an external input 12, a switch circuit 14, an A / D converter (analog / digital converter) 16, a scaler IC 18, a display panel 20, The OSD generator 24, the microcomputer 22, the optical sensor 50, and the front glass filter 55 are configured.

  The tuner 10 receives a television broadcast from the antenna 10 a under the control of the microcomputer 22, extracts a video signal as an intermediate frequency signal from the television broadcast signal while performing predetermined signal amplification processing, and outputs the video signal to the switch circuit 14. .

The switch circuit 14 is connected to the microcomputer 22, the tuner 10, and the external input 12, and selectively outputs an intermediate frequency signal from the tuner 10 and a video signal from the external input in accordance with a selection instruction input from the microcomputer 22. Output to the A / D converter as an intermediate frequency signal. Here, the external input 12 is a video signal input terminal such as a composite video signal input terminal.
The A / D converter 16 converts the input video signal into a digital signal and outputs it to the scaler IC 18.

The scaler IC 18 demodulates the R, G, and B primary color signals from the input digital video signal, separates the video signal and the audio signal, and sends the separated audio signal to an audio signal processing unit (not shown). Output to a speaker (not shown). Further, the scaler IC 18 converts a continuous interlaced video signal into a progressive video signal, and the input digital video signal is converted into the number of pixels of the screen (aspect ratio, m: n) of the display panel 20. The image data for one screen to be displayed on the display panel 20 is generated by performing scaling processing so as to match the above. Then, by outputting the generated image data to the display panel 20, video display based on the image data is displayed on the screen of the display panel 20.

  The display panel 35 includes a liquid crystal panel, a backlight, and a control circuit inside. The control circuit is an electronic circuit that performs screen display control drive processing, and generates voltages for driving the R liquid crystal panel, the G liquid crystal panel, and the B liquid crystal panel for each color from the image data output from the scaler IC 18. The backlight is turned on when a high voltage is supplied from an inverter circuit (not shown), and the generated light passes through the liquid crystal panels of the respective colors from the back to the front. Thereby, the display panel 20 displays a video corresponding to the image data from the screen, that is, a video corresponding to the video signal.

  The OSD generating unit 24 receives data such as character information from the microcomputer 22 and generates an on-screen display signal (OSD signal) that is a still image based on the data such as the character information. The signal is output to the scaler IC 18. The scaler IC 18 superimposes the OSD signal on the video signal, thereby performing processing such as displaying a predetermined still image superimposed on the video or displaying the predetermined still image replaced.

  The microcomputer 22 is electrically connected to each part constituting the liquid crystal television 100, and the CPU as a component part inside the microcomputer 22 is written in ROM, RAM, etc., which are also component parts in the microcomputer 22. The entire liquid crystal television 100 is controlled according to the program. The CPU, ROM, and RAM are not shown.

  The board 40 includes a tuner, an external input, a switch circuit, an A / D conversion unit 16, a scaler IC, an OSD generation unit, and a microcomputer, and performs signal processing on a television broadcast received through an antenna. The video is displayed on the display panel 20 and the sound is output to the speaker.

  The optical sensor 50 includes a plurality of light receiving elements 51, information indicating which light receiving elements 51 have received light, and a light reception information output unit 52 capable of outputting substantially proportional to the amount of received light. A plurality of light beams are disposed so as to be substantially in contact with the side, and can receive light transmitted through the front glass filter 55 substantially parallel to the surface of the front glass filter 55.

  The light receiving element 51 may be any element that outputs in accordance with the amount of received light, and may output current or voltage. Specifically, a photodiode, a phototransistor, a CdS cell, or the like can be considered.

  The light reception information output unit 52 has the highest output among the light reception information indicating whether any one or more of the light reception elements 51 are receiving light and the light reception elements 51 arranged along one side surface. The position information of the light receiving element can be output.

(2) First embodiment of the reflecting structure:
With reference to FIG. 3, FIG. 4, 1st embodiment of the reflective structure in this application is described. FIG. 3 is a perspective view of the front glass filter 55, and FIG. 4 is a cross-sectional view of the front glass filter 55 and the display panel 35.

  The front glass filter 55 is formed with a reflecting structure 55a, and reflects the laser light irradiated substantially perpendicular to the display surface of the display panel 35 substantially parallel to the display surface. That is, the reflective structure 55a is formed on the side facing the display surface of the display panel 35, and between the steps of the staircase that approaches the display panel 35 as it approaches one of the upper, lower, left, and right sides of the front glass filter 55. The light incident from the laser pointer 60 substantially perpendicular to the front glass filter 55 is reflected substantially parallel to the front glass filter 55.

  The reflection structure 55a formed as an inclined surface reflects light incident from the laser pointer 60 substantially perpendicularly to the front glass filter 55 at a substantially right angle so as to reflect the light substantially parallel to the front glass filter 55. , Formed with an angle of 40-50 degrees. Of course, in consideration of the possibility that the angle formed by the front glass filter 55 and the laser light incident on the front glass filter 55 may be various angles between 40 and 50 degrees, the plurality of inclined surfaces are 40 to 40 degrees. You may comprise so that it may have various angles of 50 degree | times. That is, it is arranged so that inclined surfaces having angles of 40 degrees, 45 degrees, and 50 degrees are necessarily included in the irradiation section formed when the front glass filter 55 is irradiated with laser light. Of course, as the angle of the slope, any angle of 0 to 90 degrees (not including 0 degrees and 90 degrees) can be adopted besides 40 to 50 degrees. In addition, there may be three or more types of angles arranged in the irradiation section.

  Further, as shown in FIG. 4, the inclined surface 55 a is formed in accordance with the position of the non-light emitting portion formed between the display cells of the liquid crystal panel 20. Specifically, if the display panel 35 is a liquid crystal panel, a color filter is used so that incident light does not leak from the gaps between the red (R), green (G), and blue (B) colored layers corresponding to each pixel. If the black matrix (BM) that is provided and shields the light from leaking corresponds to the non-light-emitting portion, and the display panel 35 is a PDP, the partition formed between the discharge cells is the non-light-emitting portion. It corresponds to. By forming the inclined surface 55a in accordance with the non-light emitting portion of the liquid crystal panel 20, the image displayed on the liquid crystal panel 20 is not blocked.

  The optical sensor 50 is capable of receiving reflected light from a reflecting structure that is disposed on the side of the front glass filter 55 and formed as an inclined surface 55a. That is, as shown in FIG. 3, the optical sensor 50 includes a plurality of light receiving elements, and the light receiving elements are arranged at equal intervals along the side surface of the front glass filter 55 and reflect the laser light reflected by the inclined surface 55a. Light can be received. In the first schematic configuration, the optical sensor 50 is disposed along one side of the front glass filter 55.

  Further, each light receiving element may have a directivity that easily detects light incident from a specific direction. That is, the light receiving element 51 may have high directivity with respect to light traveling substantially perpendicularly to the side surface of the front glass filter 55 on which the light receiving element 51 is disposed. Moreover, even if the light receiving element 51 itself does not have directivity, even if a light shielding wall that does not transmit light is provided between the light receiving elements 51, directivity with respect to light incident from a specific direction can be realized.

(3) Second embodiment of reflective structure:
Next, a second embodiment of the reflecting structure of the present application will be described with reference to FIGS. FIG. 5 is a sectional view of the front glass filter 55 and the display panel 35, and FIG. 6 is a plan view of the reflecting structure and the light receiving element 51.

  The front glass filter 55 is formed with a reflective structure 55b, and reflects the laser light irradiated substantially perpendicular to the display surface of the display panel 35 substantially parallel to the display surface. That is, the reflecting structure 55b is formed as a plurality of recesses on the side facing the display surface of the display panel 35, and reflects light incident from the laser pointer 60 substantially perpendicularly to the front glass filter 55 to the periphery of the recesses. . And since the reflected light reflected substantially parallel to the display surface by the dent is further reflected by another dent in the traveling direction, it is reflected substantially parallel to the surface of the front glass filter 55. The laser light is scattered by a plurality of dents constituting the reflection structure 55b. That is, the reflecting structure 55b can scatter laser light.

  Further, as shown in FIG. 5, the reflective structure 55 b formed by a plurality of recesses is formed in accordance with the position of the non-light emitting portion formed between the display cells of the liquid crystal panel 20. About a specific formation position, it forms according to the non-light-emission part of a front panel similarly to the reflective structure 55a. By forming the plurality of dents 55b in accordance with the non-light emitting portion of the liquid crystal panel 20, the image displayed on the liquid crystal panel 20 is not blocked or distorted.

  As shown in FIG. 6, in the second schematic configuration, the optical sensor 50 is disposed along one of the upper and lower side surfaces and the left and right side surfaces of the front glass filter 55. Shall be. About the directivity of a light receiving element, it is the same as that of said 1st schematic structure.

  Further, FIG. 6 shows what path the reflected laser beam takes by the light receiving element. The laser light irradiated to the irradiation position follows various paths and is received by the light receiving elements 51a, 51b, 51d,... 51h, and the light receiving elements 51α, 51β, 51δ,. . As an example, three examples of paths of light scattered toward the light receiving element 51ε are shown. The path 1 and the path 2 are received by 51ε, and the path 3 is irradiated to the light shielding wall formed between the light receiving elements 51ε and 51η, so that it is not received by 51ε.

  In other words, scattered light that is incident with an incident angle greater than a certain angle is not received by the light receiving element, and the light receiving element and the light shielding wall constitute an optical sensor having directivity. Of course, the light receiving element itself may have a directivity without providing the light shielding wall.

  Of course, there are innumerable other paths only for the light received by the light receiving element 51ε. Needless to say, there are innumerable paths in each of the other light receiving elements. In the figure, the dents are regularly arranged, but of course, the dents may be irregularly arranged as long as they are formed in accordance with the fire light emitting portion of the display panel 35.

  Further, the optical sensor 50 is arranged on the surface of the front glass filter 55 so that the position where the laser light is incident can be specified in two dimensions. That is, the light receiving elements 51 of the optical sensor 50 are arranged at substantially equal intervals on either the upper or lower side surface (referred to as a horizontal surface) and the left or right side surface (referred to as a vertical surface) of the front glass filter 55. Is done. The light receiving element with the largest received light amount among the light receiving elements on the horizontal surface and the light receiving element with the largest received light amount among the light receiving elements on the vertical surface are respectively positioned at the laser beam incident position on the horizontal surface and the vertical surface. By using the light receiving element that is closest, the incident position of the laser light can be specified.

( 4 ) Microprocessor processing for OSD display:
Next, the processing of the microcomputer 22 when the optical sensor 50 receives the reflected light of the laser light will be described with reference to FIG. This figure shows the processing in a flowchart. This flow is repeated while the panel television 100 is powered on.

  When the process is started, it is determined in step S10 whether or not the optical sensor 50 receives the laser beam. When any of the light receiving elements 51 receives light, the optical sensor 50 generates light reception information. The microcomputer 22 constantly monitors the input of the voltage signal from the optical sensor, and detects that the optical sensor 50 has received light by identifying information represented by the voltage signal. When the optical sensor 50 is receiving light, the condition is satisfied and the process proceeds to step S12. On the other hand, when the optical sensor 50 is not receiving light, the condition is not satisfied and the flow ends.

  In addition, the region of the display panel 20 that detects whether or not the laser beam is irradiated in step S10 is a region where a reflective structure is formed. That is, in the reflective structure according to the first embodiment, a region having a predetermined width from the side surface where the light receiving element 51 of the optical sensor 50 is disposed is a region where the reflective structure 55 is formed as shown in FIG. The region having the predetermined width is the same as the region where the reflection structure according to the first embodiment is formed. As shown in the figure, the optical sensor 50 does not receive light even if the laser pointer is irradiated to an area other than the area, and light reception is possible by moving the laser pointer irradiation position to the area.

  On the other hand, in the reflection structure according to the second embodiment, since the light receiving element 51 is disposed on the entire horizontal surface and the vertical surface as shown in FIG. 11, the entire display surface of the display panel 20 emits laser light. This is a region where it is detected whether or not it has been irradiated. Of course, the area where the light receiving element 51 is arranged is limited, and a reflection structure is formed in a predetermined rectangular area of the display surface of the display panel 20 corresponding to the area where the light receiving element 51 is arranged, thereby forming a predetermined rectangle. Only the region can be a region for detecting whether or not the laser beam is irradiated.

  In step S12, the microcomputer 22 acquires information representing all the operation items on the menu screen from the ROM, outputs the information to the OSD generation unit 24, and generates an OSD signal for causing the OSD generation unit 24 to perform OSD display. And the scaler IC 18 superimposes the generated OSD signal on the video signal, and the scaler IC 18 supplies the display panel 20 with the video signal on which the OSD signal is superimposed. Then, the video signal on which the OSD signal is superimposed is displayed on the display panel 20. The operation items displayed on the display panel 20 in this step are displayed in correspondence with the positions of the respective light receiving elements 51 constituting the optical sensor 50.

  In the first embodiment, the operation items on the menu screen displayed in step S12 are displayed side by side in the vertical direction so as not to overlap in the horizontal direction in accordance with the region where the reflection structure is formed as shown in FIG. Is done. That is, since the optical sensors are arranged only in the vertical direction, the movement of the laser pointer irradiation position in the vertical direction can be detected, but the movement of the laser pointer irradiation position in the horizontal direction cannot be detected. On the other hand, in the second embodiment, the operation items can be displayed side by side as shown in FIG. That is, the optical sensor 50 can detect two types of laser pointer irradiation positions in the vertical and horizontal directions and can specify the laser pointer irradiation position in two dimensions. Of course, it is not necessary to arrange the operation items regularly and vertically as shown in FIG. 11, and an irregular arrangement is also possible.

  As described above, when the microcomputer 22 that executes the processes of steps S10 to S12 receives the reflected light, the menu display causes the display panel to display predetermined operation items corresponding to the position of the optical sensor on the screen. Configure the means.

  In step S14, it is determined whether the optical sensor 50 continues to receive laser light. That is, the microcomputer 22 determines whether or not the voltage signal from the optical sensor 50 is continuously input. If the input of the voltage signal continues, the condition is satisfied and step S14 is repeated. On the other hand, when the voltage signal input is not continuous, the condition is not satisfied and the process proceeds to step S16. The determination of the continuity of the input of the voltage signal may be based on whether or not the input is continued every predetermined time, or whether or not the voltage is continuously applied.

  If the condition is not satisfied in step S14 and the process proceeds to step S16, the position information pointed to by the laser beam when the laser beam reception is interrupted is received. That is, the microcomputer 22 receives the position information received from the optical sensor 50 immediately before the reception of the laser beam is interrupted.

  In step S18, an operation input for selecting the operation item pointed to by the laser beam at the time of interruption is received based on the position information received in step S16. That is, the selection input of the operation item displayed at the position indicated by the laser beam when the reception of the laser beam is interrupted is received.

  In step S20, it is determined whether or not the operation item received and executed in step S18 has a submenu. If it has a submenu, the condition is met and the process proceeds to step S24, the submenu is displayed, and the process proceeds to step S26. On the other hand, if there is no submenu, the condition is not satisfied, the process proceeds to step S22, the setting process corresponding to the operation item received in step S18 is executed, and the flow ends.

  In step S26, it is determined whether or not the laser beam reception is detected again after the laser beam reception is interrupted in step S14. When the light reception of the laser beam is detected again, the process from step S14 is executed as the condition is satisfied, and when the light reception of the laser beam is not detected again, the condition is not satisfied and the process proceeds to step S28.

  In step S28, it is determined whether or not a predetermined time has elapsed after the reception of the laser beam is interrupted. When the predetermined time has elapsed, the process is terminated as the condition is satisfied, and when the predetermined time has not elapsed, the process from step S26 is executed as the condition is not satisfied.

  As described above, when the microcomputer 22 executing the processes of steps S14 to S28 receives the reflected light, the microcomputer 22 receives an operation input for selecting the operation item pointed to by the laser beam at the time of the interruption, and the selected above An operation item receiving unit that executes setting processing corresponding to the operation item is configured.

Next, the operation of the present embodiment configured as described above will be described.
When the power source of the panel television 100 is on, when the user irradiates the laser beam to the region where the reflection structure of the display screen is formed with the laser pointer, the light receiving element 51 reflects the reflected light (see FIG. (Scattered light) is received, and output according to the received light quantity is performed. Then, the light reception information output unit 52 outputs the light reception information and the position information to the microcomputer 22 as voltage signals, and the microcomputer 22 receives the light reception information (step S10).

  Then, the microcomputer 22 acquires information representing all the operation items on the menu screen from the ROM and outputs the information to the OSD generation unit 24 to generate an OSD signal for causing the OSD generation unit 24 to perform OSD display and the scaler IC 18. The scaler IC 18 superimposes the generated OSD signal on the video signal, and the scaler IC 18 supplies the display panel 20 with the video signal on which the OSD signal is superimposed. Then, a menu screen is displayed in the area where the reflective structure 55a or 55b of the display panel 20 is formed (step S12).

  Then, after the user moves the laser pointer to one of the operation items on the menu screen, the laser pointer is released by releasing the button of the laser pointer, or the laser beam irradiation position is changed from the region where the reflection structure is formed. If the received light information is not output from the optical sensor 50 by shifting (step S14), the microcomputer 22 receives the position information immediately before the output of the received light information is interrupted (step S16).

  The microcomputer 22 receives a selection input of the operation item displayed at the position of the received position information (step S18). When the received operation item is an operation item having a submenu, the submenu has a reflective structure. When the operation item is displayed in the formed area (steps S20 and S24) and does not have a submenu, the setting process corresponding to the operation item is executed and the menu display is ended (steps S20 and S22).

  On the other hand, when the sub menu is displayed and the laser pointer is irradiated again within a predetermined time, it becomes possible to select and input the operation item of the sub menu, and the user operates the sub menu by irradiating and interrupting the laser pointer. Is selected (step S26, step S14 ~). If the laser pointer is not irradiated again within a predetermined time after the sub menu is displayed, the display of the sub menu disappears after the elapse of the predetermined time (steps S26 and S28).

( 5 ) Summary:
That is, the reflection structure 55a or 55b that reflects the laser beam irradiated substantially perpendicularly to the surface of the front glass filter 55 substantially parallel to the surface, and the reflection structure disposed on the side surface of the front glass filter 55. And a predetermined operation item corresponding to the position of the light receiving element 51 constituting the optical sensor 50 on the display panel 20 when the optical sensor 50 receives the reflected light. When the screen is displayed and the reception of the reflected light is interrupted, an operation input for selecting the operation item indicated by the laser beam immediately before the interruption is received and a setting process corresponding to the selected operation item is executed. .

As described above, in Rupa panel display apparatus to respond to this embodiment includes a display panel image display face is covered with light at permeable filter, a predetermined video signal is input common In the panel-type image display device for displaying an image corresponding to an image signal on the display panel, laser light formed on the filter and irradiated substantially perpendicularly to the surface of the filter is substantially parallel to the surface. A reflective structure that reflects the light, a light sensor that is disposed on a side surface of the filter and that can receive reflected light from the reflective structure; and when the light sensor receives the reflected light, the display panel corresponds to the position of the light sensor. Menu display means for displaying a predetermined operation item on the screen, and when the reflected light reception is interrupted, an operation input for selecting the operation item indicated by the laser beam immediately before the interruption is received. Together is configured to include an operation item receiving means for performing a setting process corresponding to the operation item selected.
In this configuration , the reflection structure reflects laser light irradiated substantially perpendicular to the surface of the filter substantially parallel to the surface, and the optical sensor receives reflected light from the reflection structure. When the optical sensor receives the reflected light, the menu display means displays a predetermined operation item corresponding to the position of the optical sensor on the display panel, and when reception of the reflected light is interrupted, The operation item receiving unit receives an operation input for selecting the operation item pointed to by the laser beam immediately before the interruption, and executes a setting process corresponding to the selected operation item.
Therefore , it is possible to operate the menu using a laser irradiation device such as a commercially available laser pointer, so it is possible to operate with a general-purpose laser pointer or the like without the need for an external remote control including a remote controller for setting. At the same time, it is possible to provide a panel-type video display device that can avoid an increase in cost.

Upper Symbol reflective structure is formed in the side facing the aforementioned display panel of the filter, it is formed as a slope between the respective stages of the stairs approaching the display panel closer to the one side one of the filter The light incident substantially perpendicularly to the filter may be reflected substantially parallel to the filter.

In addition, the slope may be configured to be formed at an angle of 45 degrees to the plane of the filter.
Further, the upper Symbol slope may be configured to be formed at an angle of 40 degrees to the plane of the filter.
Further, the upper Symbol slope may be configured to be formed at an angle of 50 degrees to the plane of the filter.
Stage is formed on the filter, by reflecting the light by the reflection can be reflective structure light upon slope formed between the respective stages, panel type capable of realizing a reflective structure with a simple structure A video display device can be provided.

Further, the upper Symbol reflecting structure has a plurality of inclined surfaces located within the irradiation section of the laser beam may be configured configured by slope formed at a plurality of angles to the plane of the filter.
According to this configuration , the step is formed in the filter, and the light is reflected by the reflecting structure that can reflect the light at the slope formed between the stands, and the angle of the slope is set to be plural, so that the viewing can be performed in front. It is possible to provide a panel-type video display device that can be operated by menus not only by users who are viewing but also by users who are viewing from an oblique direction.

Further, the upper Symbol reflective structure is formed as a recess on the side facing the display panel of the filter may be configured is capable scatter the laser light.
According to this configuration , since the light is reflected by the recess formed in the filter, it is possible to provide a panel-type image display device capable of realizing the reflection structure with a simple structure.

Further, the upper Symbol light sensor may be configured to be disposed along one side of the filter.
According to this configuration , it is only necessary to arrange the optical sensor on one side surface, so that the cost can be reduced and a more inexpensive panel-type image display device can be provided.

Further, the upper Symbol light sensors, the surface of the filter may be configured to be identifiable position the position is incident of the laser beam at two dimensions.
According to this configuration , since the laser irradiation position can be specified on the entire surface of the display panel, a menu screen can be displayed on the entire surface of the display panel, and many operation items can be displayed and selected simultaneously. Can be provided.

Further, the upper Symbol reflective structure may have a structure formed in accordance with the non-light emitting portion of the display panel.
According to this configuration , since the reflective structure is formed in accordance with the non-light-emitting portion of the display panel, the image light displayed on the display panel is not distorted when passing through the filter, and the user's comfortable viewing is prevented. It is possible to provide a panel-type video display device that does not have any problems.

Furthermore, the upper Symbol light sensors, substantially parallel to the surface of the filter, and may be configured to have a directivity to light incident from a direction substantially perpendicular to the side surface of the filter.
According to this configuration , it is possible to provide a panel-type video display device capable of specifying the laser irradiation position more accurately by providing directivity to the optical sensor.

As a more specific configuration example based on the above configuration, a display panel with a flat display surface for displaying video on the screen facing forward, a tuner that receives a television broadcast and outputs a video signal as an intermediate frequency signal, An A / D converter that converts an input video signal into a digital signal and outputs it, and converts an interlaced video signal into a progressive format, performs scaling processing of the video signal, and displays one screen for display on the display panel A scaler IC for generating and outputting image data and data such as character information are input, and an on-screen display signal is generated based on the data such as the character information and output to the scaler IC. An OSD generation unit to be superimposed on the video signal, and data such as character information is output to the OSD generation unit, and the display panel, the tuner, and the data In a panel type television including a / D conversion unit, a microcomputer for controlling the scaler IC, and the OSD generation unit, an image that is disposed close to the front surface of the display panel and displayed on the display surface of the display panel And a front glass filter having a reflecting structure that reflects laser light incident from the front sideways, and the front glass filter passes through the front glass filter substantially parallel to the surface of the front glass filter. A plurality of light receiving elements that receive the light to be output and output in accordance with the amount of light received, and light reception that indicates whether one or more of the light receiving elements is receiving light based on the output of the light receiving element A light receiving information output unit capable of outputting information and position information of the light receiving element having the highest output among the light receiving elements arranged along the side surface, and the front glass filter An optical sensor disposed substantially in contact with a side surface on which the user light is reflected, and the reflective structure is formed on a side facing the display surface of the display panel, and is formed above and below the front glass filter. Laser light that is formed as an inclined surface between the steps of the staircase that approaches the display panel as it approaches either the left or right side, and is incident on the front glass filter substantially perpendicularly to the front glass filter. When the microcomputer receives light reception information from the optical sensor, the microcomputer is configured from a predetermined operation item corresponding to the position of the light receiving element in a region where the reflection structure of the display panel is formed. When the screen is displayed and the output of the light reception information from the optical sensor is interrupted, the position information immediately before the interruption is accepted and the operation item corresponding to the position information is selected. The operation input may be received, and the setting process corresponding to the operation item may be executed.

In this configuration , the laser light incident substantially perpendicular to the region where the reflection structure of the front glass filter is formed is reflected in the direction of the side surface on which the photosensor is disposed by the reflection structure, The light receiving element that constitutes the optical sensor receives the reflected laser light and performs output according to the amount of received light, the light receiving information output unit outputs light receiving information and position information, and the microcomputer outputs the light receiving information and the light receiving information. Accept location information.

Needless to say, the present invention is not limited to the above embodiments. It goes without saying for those skilled in the art,
・ Applying mutually interchangeable members and configurations disclosed in the above embodiments by appropriately changing the combination thereof.− Although not disclosed in the above embodiments, it is a publicly known technique and the above embodiments. The members and configurations that can be mutually replaced with the members and configurations disclosed in the above are appropriately replaced, and the combination is changed and applied. It is an embodiment of the present invention that a person skilled in the art can appropriately replace the members and configurations that can be assumed as substitutes for the members and configurations disclosed in the above-described embodiments, and change the combinations and apply them. It is disclosed as.

It is a schematic structure of a liquid crystal television. It is a schematic block diagram of a liquid crystal television. It is a perspective view of the reflection structure concerning a first embodiment. It is sectional drawing of the reflection structure concerning 1st embodiment. It is sectional drawing of the reflection structure concerning 2nd embodiment. It is a top view of the reflection structure concerning a second embodiment. It is a flowchart which shows the process of the microcomputer concerning this embodiment. It is a top view of the display panel concerning a first embodiment. It is a top view of the display panel concerning a first embodiment. It is a top view of the display panel concerning a second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Tuner 10a ... Antenna 12 ... External input 14 ... Switch circuit 16 ... A / D conversion part 18 ... Scaler IC
DESCRIPTION OF SYMBOLS 20 ... Display panel 22 ... Microcomputer 24 ... OSD production | generation part 30 ... Rear cabinet 31 ... Opening 35 ... Front cabinet 40 ... Substrate 50 ... Optical sensor 51 ... Light receiving element 52 ... Light reception information output part 55 ... Front glass filter 55a ... Reflective structure ( Slope)
55b ... Reflective structure (dent)
51a to 51h, 51α to 51κ ... light receiving element 60 ... laser pointer 100 ... panel type television (panel type video display device)

Claims (11)

A display panel with a flat display surface for displaying images on the screen facing forward,
A tuner that receives a television broadcast and outputs a video signal as an intermediate frequency signal;
An A / D converter that converts an input video signal into a digital signal and outputs the digital signal;
A scaler IC that converts an interlaced video signal into a progressive format, scales the video signal, and generates and outputs image data for one screen to be displayed on the display panel;
An OSD generation unit that receives data such as character information, generates an on-screen display signal based on the data such as the character information, outputs the signal to the scaler IC, and superimposes it on the video signal;
In a panel-type television that outputs data such as character information to the OSD generation unit, and includes a microcomputer that controls the display panel, the tuner, the A / D conversion unit, the scaler IC, and the OSD generation unit. ,
A reflection structure that is disposed in the vicinity of the front surface of the display panel and that can transmit the light of the image displayed on the display surface of the display panel forward and reflects the laser light incident from the front sideways. A front glass filter comprising:
A plurality of light receiving elements that receive light transmitted through the front glass filter substantially parallel to the surface of the front glass filter and perform output according to the amount of light received, and any of the light receiving elements based on the output of the light receiving element A light receiving information output unit capable of outputting light receiving information indicating whether or not one or more light receiving elements are receiving light and position information of the light receiving element having the highest output among the light receiving elements arranged along the side surface; An optical sensor configured to be disposed in substantially contact with a side surface on which the laser light of the front glass filter is reflected ;
With
The reflective structure is formed on a side facing the display surface of the display panel, and is inclined between each step of the stairs that approaches the display panel as it approaches one of the upper, lower, left, and right sides of the front glass filter. The laser light incident on the front glass filter substantially perpendicularly to the front glass filter is reflected substantially parallel to the front glass filter,
When the microcomputer receives light reception information from the optical sensor, the microcomputer displays a menu including a predetermined operation item corresponding to the position of the light receiving element in a region where the reflection structure is formed on the display panel. When the output of the light reception information from the optical sensor is interrupted, the position information immediately before the interruption is received, the operation input for selecting the operation item corresponding to the position information is received, and the setting process corresponding to the operation item is performed. A panel-type television characterized by being executed. Provided with a display panel whose image display surface is covered with a filter capable of transmitting light,
In the panel-type video display device that displays a video corresponding to the video signal when the predetermined video signal is input,
It is formed on the side of the filter facing the display panel, and is formed as a slope between the steps of the staircase approaching the display panel as it approaches one of the sides of the filter, with respect to the surface of the filter A reflecting structure that reflects the laser beam irradiated substantially vertically to the surface substantially parallel ;
An optical sensor disposed on a side surface of the filter and capable of receiving reflected light from the reflective structure;
Menu display means for displaying a predetermined operation item corresponding to the position of the optical sensor on the display panel when the optical sensor receives the reflected light;
When the reception of the reflected light is interrupted, an operation item receiving means for receiving an operation input for selecting the operation item pointed to by the laser light immediately before the interruption and executing a setting process corresponding to the selected operation item; ,
A panel-type video display device comprising: The above slope is
3. The panel type image display device according to claim 2 , wherein the panel type image display device is formed at an angle of 45 degrees with respect to the surface of the filter. The above slope is
3. The panel type image display device according to claim 2 , wherein the panel type image display device is formed with an angle of 40 degrees with respect to the surface of the filter. The above slope is
3. The panel type image display device according to claim 2 , wherein the panel type image display device is formed with an angle of 50 degrees with respect to the surface of the filter. The reflective structure is
3. The panel mold according to claim 2 , wherein the plurality of inclined surfaces positioned in the laser light irradiation section are formed by inclined surfaces formed at a plurality of angles with respect to the surface of the filter. Video display device. The reflective structure is
3. The panel-type image display device according to claim 2, wherein the filter is formed as a dent on a side facing the display panel of the filter and can scatter the laser light. The optical sensor is
Panel display apparatus according to any one of the above claims 2-7, characterized in that arranged along the one side of the filter. The optical sensor is
The surface of the filter, the panel-type image display apparatus according to claim 2 or claim 7, characterized in that it is identifiable position the position is incident of the laser beam at two dimensions. The reflective structure is
Panel display apparatus according to any one of the above claims 2-9, characterized in that it is formed in accordance with the non-light emitting portion of the display panel. The optical sensor is
Substantially parallel to the surface of the filter, and the panel according to any one of the preceding claims 2 to 0, characterized in that it has directivity in light incident from a direction substantially perpendicular to the side surface of the filter Type image display device.

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